CA2425232A1 - Pumping or mixing system using a levitating bearing - Google Patents

Pumping or mixing system using a levitating bearing Download PDF

Info

Publication number
CA2425232A1
CA2425232A1 CA002425232A CA2425232A CA2425232A1 CA 2425232 A1 CA2425232 A1 CA 2425232A1 CA 002425232 A CA002425232 A CA 002425232A CA 2425232 A CA2425232 A CA 2425232A CA 2425232 A1 CA2425232 A1 CA 2425232A1
Authority
CA
Canada
Prior art keywords
pumping
superconducting element
mixing
vessel
magnetic bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002425232A
Other languages
French (fr)
Other versions
CA2425232C (en
Inventor
Alexandre N. Terentiev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ATMI Packaging Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26932357&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2425232(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2425232A1 publication Critical patent/CA2425232A1/en
Application granted granted Critical
Publication of CA2425232C publication Critical patent/CA2425232C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/048—Bearings magnetic; electromagnetic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
    • A61M60/109—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/20—Type thereof
    • A61M60/205—Non-positive displacement blood pumps
    • A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
    • A61M60/226—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly radial components
    • A61M60/232—Centrifugal pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/30—Medical purposes thereof other than the enhancement of the cardiac output
    • A61M60/36—Medical purposes thereof other than the enhancement of the cardiac output for specific blood treatment; for specific therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40—Details relating to driving
    • A61M60/403—Details relating to driving for non-positive displacement blood pumps
    • A61M60/419—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
    • A61M60/818—Bearings
    • A61M60/82—Magnetic bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B01F33/452—Magnetic mixers; Mixers with magnetically driven stirrers using independent floating stirring elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/027—Details of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0436—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part
    • F16C32/0438—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part with a superconducting body, e.g. a body made of high temperature superconducting material such as YBaCuO
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
    • A61M60/109—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
    • A61M60/113—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems in other functional devices, e.g. dialysers or heart-lung machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F2035/98—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00—Cooling of bearings
    • F16C37/005—Cooling of bearings of magnetic bearings

Abstract

A system (10) for pumping or mixing a fluid using a levitating, rotating magnetic bearing (14) and various other components for use in a pumping or mixing system are disclosed. The magnetic bearing (14) is placed in a fluid- containing vessel (16) in close proximity to a superconducting element (16). A separate cooling source (24) thermally linked to the superconducting element provides the necessary cooling to induce levitation in the magnetic bearing. The superconducting element (20) may be thermally isolated, such that the bearing, the vessel, and any fluid contained therein are not exposed to the cold temperatures required to produce the desired superconductive effects an d the resulting levitation. By using means external to the vessel to rotate and/or stabilize the magnetic bearing levitation in the fluid, including possibly rotating the superconducting element itself or moving it relative t o the vessel, the desired effective pumping or mixing action may be provided.< /SDOAB>

Claims (124)

1. A system for pumping or mixing a fluid in a vessel, comprising:
a magnetic bearing for placement in the vessel;
at least one superconducting element for levitating said magnetic bearing;
a wall defining a chamber around the superconducting element, said chamber thermally isolating the superconducting element from the vessel;
a separate cooling source thermally linked to said superconducting element;
a motive device for rotating said magnetic bearing or said superconducting element.
2. The system for pumping or mixing a fluid according to claim 1, wherein the chamber is evacuated or insulated to minimize thermal transfer from said superconducting element to said wall and provide the desired thermal isolation.
3. The system for pumping or mixing a fluid according to claim 1, wherein said wall is the outer wall of a cryostat and said cooling source is a chamber in said cryostat holding a liquid cryogen.
4. The system for pumping or mixing a fluid according to claim 1, wherein said cooling source is a refrigerator.

67~
5. The system for pumping or mixing a fluid according to claim 1, wherein said thermal linking is provided by a rod extending between said superconducting element and said cooling source.
6. The system for pumping or mixing a fluid according to claim 1, wherein said levitating magnetic bearing further includes a first permanent magnet positioned adjacent to said superconducting element but external to said wall.
7. The system for pumping or mixing a fluid according to claim 6, wherein said magnetic bearing further includes a second permanent magnet spaced from said first permanent magnet for forming a magnetic coupling with a drive magnet forming a part of said motive device, whereby said magnetic coupling serves to transmit driving torque from said drive magnet to said magnetic bearing.
8. The system for pumping or mixing a fluid according to claim 7, wherein said motive device for said magnetic bearing includes a motor for rotating said drive magnet.
9. The system for pumping or mixing a fluid according to claim 8, wherein said second permanent magnet includes at least two submagnets that correspond to opposite polarity submagnets forming a part of said drive magnet, whereby said cooperating submagnets serve to stabilize said magnetic bearing during rotation.
10. The system for pumping or mixing a fluid according to claim 1, wherein said wall is below said magnetic bearing and the vessel rests atop said wall.
11. The system for pumping or mixing a fluid according to claim 1, wherein a gap is provided between said superconducting element and an inner surface of said wall of approximately 0.01 to 5 millimeters.
12. The system for pumping or mixing a fluid according to claim 1, wherein the vessel includes an inlet and an outlet and said rotating magnetic bearing includes at least one blade for creating a pumping action that forces fluid to move from said inlet to said outlet.
13. The system for pumping or mixing a fluid according to claim 1, wherein said vessel is completely sealed and said magnetic bearing serves to mix the fluid only.
14. The system for pumping or mixing a fluid according to claim 1, wherein the vertical center axis of rotation of the magnetic bearing is offset from the vertical center axis of the vessel.
15. The system according to claim 1, wherein the vessel is selected from the group consisting of an open-top container, a sealed container, a disposable container, a rigid container, a container having an inlet and an outlet, a hollow pipe and a flexible bag.
16. The system for pumping or mixing a fluid according to claim 1, wherein said superconducting element is supported by the wall defining said chamber, and wherein said chamber is in turn supported from a stable mounting structure by a bearing permitting rotational motion, said motive device rotating said wall and said superconducting element together.
17. The system for pumping or mixing a fluid according to claim 16, wherein the cooling source is a stationary container holding a cryogen, and the support for the superconducting element is provided by a thermal link rigidly connected to the wall and providing a dynamic thermal connection with the cooling source.
18. The system for pumping or mixing a fluid according to claim 16, wherein said motive device is a motor coupled to said wall by an endless belt, wherein said endless belt transfers the rotary motion produced by said motor to said wall to cause said superconducting element to rotate.
19. The system for pumping or mixing a fluid according to claim 16, wherein said cooling source is coupled to and rotates with said wall.
20. The system for pumping or mixing a fluid according to claim 16, wherein the vessel is a centrifugal pumping head having an inlet substantially at the center of a vessel wall opposite the side of the pumping head positioned adjacent to said superconducting element.
21. The system for pumping or mixing a fluid according to claim 16, wherein said chamber housing said superconducting element is positioned below said magnetic bearing in said vessel.
22. The system for pumping or mixing a fluid according to claim 16, wherein the vessel is supported by a stable support structure positioned between said superconducting element and said magnetic bearing.
23. The system for pumping or mixing a fluid according to claim 16, wherein the magnetic bearing includes first and second magnets having different polarities to create a non-symmetrical magnetic field with respect to an axis of rotation of said superconducting element.
24. The system for pumping or mixing a fluid according to claim 16, wherein the magnetic bearing includes at least one low-profile rod carrying first and second magnets, wherein said rod is capable of being inserted in a relatively narrow opening in the vessel.
25. The system far pumping or mixing a fluid according to claim 16, wherein the magnetic bearing includes 'a pair of interconnected rods that are substantially orthogonal to each other in a nominal position with each rod carrying first and second magnets having the same polarities.
26. The system for pumping or mixing a fluid according to claim 25, wherein the rods are pinned together and are thus capable of rotating about a common center, wherein the rods can be rotated to a partially folded position far insertion through a narrow opening in a container.
27. The system for pumping or mixing a fluid according to claim 25, wherein at least one of the rods is formed of a flexible material and is thus capable of being deformed during insertion in the relatively narrow opening in the vessel.
28. The system for pumping or mixing a fluid according to claim 1, wherein said motive device is positioned adjacent to and on the same side of the vessel as the superconducting element.
29. The system for pumping or mixing a fluid according to claim 28, wherein said superconducting element is annular and at least a portion of said motive device for rotating said levitating magnetic bearing is concentric with and adjacent to the annular superconducting element.
30. The system for pumping or mixing a fluid according to claim 29, wherein a portion of the chamber defined by said wall is annular for receiving said annular superconducting element.
31. The system for pumping or mixing a fluid according to claim 30, wherein said motive device includes a shaft carrying at least first and second driving magnets at one end, said driving magnets being inserted in a thermally separated or isolated bore formed by said wall concentric with the annular chamber for housing said superconducting element.
32. The system for pumping or mixing a fluid according to claim 28, further including a platform in said chamber for supporting the superconducting element, wherein the platform is thermally linked to the separate cooling source.
33. The system for pumping or mixing a fluid according to claim 32, wherein the thermal linking is provided by a rod extending from the cooling source to the platform for supporting the superconducting element.
34. The system for pumping or mixing a fluid according to claim 32, wherein the chamber housing the superconducting element is evacuated and also houses a thermal link between the cooling source and the platform.
35. The system for pumping or mixing a fluid according to claim 28, wherein said motive device includes a shaft carrying at least first and second driving magnets.
36. The system for pumping or mixing a fluid according to claim 35, wherein said magnetic bearing comprises:
a levitation magnet substantially corresponding in size and shape to the superconducting element;
at least two driven magnets having opposite polarities, said driven magnets being aligned with said first and second driving magnets rotated by said motive device, whereby said levitation magnet levitates said bearing while said driven magnets transmit rotary motion from said driving magnets to said magnetic bearing.
37. The system for pumping or mixing a fluid according to claim 28, wherein the cooling source is a container of a liquid cryogen or a closed-cycle refrigerator.
38. The system for pumping or mixing a fluid according to claim 37, wherein the cooling source is the liquid cryogen container and the chamber housing the superconducting element is evacuated and also houses the cooling source.
39. The system for pumping or mixing a fluid according to claim 1, further including a transmitter for transmitting a signal or receiver for receiving the signal, and wherein either said magnetic bearing or the vessel includes one of the transmitter or the receiver and the other is positioned adjacent to said superconducting element, wherein the operation of said motive device is restricted until the signal generated by the transmitter is received by said receiver.
40. The system for pumping or mixing a fluid according to claim 28, wherein the vessel is a centrifugal pumping head having an inlet substantially at the center of a vessel wall opposite the side of the pumping head positioned adjacent to said superconducting element.
41. The system for pumping or mixing a fluid according to claim 28, wherein the vessel is a pipe, the wall defining the chamber for thermally isolating the superconducting element is positioned inside of the pipe and includes a thermally separated or isolated bore for receiving a driven shaft carrying a plurality of alternating polarity driving magnets forming a part of said motive device, said driving magnets magnetically coupling with a plurality of corresponding driven magnets in or on said magnetic bearing.
42. The system for pumping or mixing a fluid according to claim 1, wherein the vessel is a pipe, the superconducting element includes at least two superconducting members each thermally separated or isolated from the outer surface of the pipe, and said bearing includes at least two levitation magnets, each corresponding to one of said at least two superconducting members, whereby said magnetic bearing is levitated in said pipe as a result of the interaction between each said superconducting members and the corresponding levitation magnet.
43. The system for pumping or mixing a fluid according to claim 42, wherein said magnetic bearing further includes a plurality of alternating polarity driven magnets.
44. The system for pumping or mixing a fluid according to claim 43, wherein the motive device includes a bearing positioned outside of said pipe for rotatably supporting a driving magnet assembly carrying a plurality of alternating polarity driving magnets, a motor, and an endless belt for transmitting rotary motion from said motor to said driving magnet assembly, wherein the driving magnet assembly upon rotating creates a varying magnetic field that influences said driven magnets and causes said magnetic bearing to rotate.
45. The system for pumping or mixing a fluid according to claim 43, wherein the motive device includes a winding positioned external to said pipe and a power supply for supplying an electrical current to said winding, wherein said winding creates an electrical field that causes said levitating magnetic bearing to rotate in said pipe.
46. The system for pumping or mixing a fluid according to claim 1, wherein said bearing includes at least one levitation-assist chamber for holding a substance that is lighter than the fluid in said vessel, whereby the chamber assists in levitating the magnetic bearing in the fluid.
47. The system for pumping or mixing a fluid according to claim 1, wherein the motive device is a first motive device, and further including a second motive device for moving the superconducting element relative to the vessel, whereby effective, non-localized pumping or mixing action may be provided by the magnetic bearing as a result.
48. The system for pumping or mixing a fluid according to claim 47, wherein the second motive device is a linear motion device.
49. The system for pumping or mixing a fluid according to claim 47, wherein:
said superconducting element is supported by the wall defining said chamber, and wherein said chamber is in turn supported from a stable mounting structure by a bearing permitting rotational motion, said motive device rotating said wall and said superconducting element together;

said first motive device is a motor coupled to said wall by an endless belt, wherein said endless belt transfers the rotary motion produced by said motor to said wall to cause said superconducting element to rotate; and wherein the second motive device includes a support structure for supporting the wall, the stable mounting structure, and the motor and a linear motion device for moving the support structure to and fro relative to the vessel.
50. A system for mixing a fluid, comprising:
a vessel for holding the fluid;
a magnetic bearing for positioning in said vessel;
a superconducting element;
a housing defining a chamber around said superconducting element for thermally isolating said superconducting element from said vessel;
a cooling source thermally linked to said superconducting element; and a motive device for rotating said magnetic bearing or said superconducting element.
51. The mixing system according to claim 50, wherein said chamber surrounding said superconducting element is evacuated to minimize thermal transfer to said housing and provide the desired thermal isolation.
52. The mixing system according to claim 50, wherein said vessel includes an inlet and an outlet and said magnetic bearing further includes at least one blade or vane for creating a pumping action that forces fluid to move from said inlet to said outlet.
53. The mixing system according to claim 50, wherein said vessel is completely sealed from the outside environment.
54. The mixing system according to claim 50, wherein said vessel and magnetic bearing are disposable.
55. A system for pumping or mixing a fluid in a vessel positioned on a stable support structure, comprising:
a magnetic bearing for placement in the vessel;
at least one superconducting element for levitating said magnetic bearing;
a cooling source thermally linked to said superconducting element in said chamber;
a motive device for rotating said superconducting element.
56. The system for pumping or mixing a fluid according to claim 55, further including a wall defining a chamber for thermally isolating the superconducting element, and wherein said wall and chamber are rotated along with the superconducting element.
57. The system for pumping or mixing a fluid according to claim 56, wherein a thermal link to said cooling source extends at least partially through said chamber and directly supports the superconducting element, said wall defining said chamber is supported by a bearing permitting rotational motion, said motive device is a motor coupled to said chamber by an endless belt, and said endless belt transfers the rotary motion produced by said motor to said wall and said thermal link to rotate the superconducting element.
58. The system for pumping or mixing a fluid according to claim 56, wherein said cooling source contains a liquid cryogen and is attached to and rotates with said wall and chamber.
59. The system for pumping or mixing a fluid according to claim 56, wherein said chamber housing said superconducting element is positioned below said magnetic bearing in said vessel.
60. The system for pumping or mixing a fluid according to claim SS, wherein said magnetic bearing includes at least one blade or vane, whereby said blade or vane provides the desired pumping or mixing action when the bearing is rotated.
61. The system for pumping or mixing a fluid according to claim SS, wherein said vessel is a centrifugal pumping head having an inlet and an outlet, wherein the rotation of said magnetic bearing causes the fluid to move from the inlet to the outlet.
62. The system for pumping or mixing a fluid according to claim 61, wherein the inlet is in a vessel wall of the pumping head opposite a side of the pumping head adjacent to the superconducting element.
63 . The system for pumping or mixing a fluid according to claim 55, wherein the vessel is supported by a stable support structure positioned between said superconducting element and said magnetic bearing.
64. The system for pumping or mixing a fluid according to claim 55, wherein the magnetic bearing includes first and second magnets having different polarities to create a non-symmetrical magnetic field with respect to an axis of rotation of said superconducting element.
65. The system for pumping or mixing a fluid according to claim 55, wherein the vessel is selected from the group consisting of an open-top container, a sealed container, a container having an inlet and an outlet, a disposable container, a rigid container, a pipe, and a flexible bag.
66. The system for pumping or mixing a fluid according to claim 55, wherein the magnetic bearing includes at least one low-profile rod carrying first and second magnets having the different polarities, said rod being capable of insertion in a relatively narrow opening in the vessel.
67. The system for pumping or mixing a fluid according to claim 55, wherein the magnetic bearing includes a pair of interconnected rods that are substantially orthogonal to each other in a nominal position, each carrying first and second magnets having the same polarity.
68. The system for pumping or mixing a fluid according to claim 67, wherein the rods are pinned together and are thus capable of rotating about a common center, wherein the rods can be rotated to a partially folded position for insertion through a narrow opening in a container.
69. The system for pumping or mixing a fluid according to claim 67, wherein at least one of the rods is formed of a flexible material and is thus capable of deforming for insertion in the relatively narrow opening in the vessel.
70. A system for pumping or mixing a fluid in a vessel, comprising:
a magnetic bearing for placement in the vessel;
a superconducting element for levitating said magnetic bearing;
a wall defining a chamber around the superconducting element, said chamber thermally isolating the superconducting element from the vessel;
a separate cooling source thermally linked to said superconducting element;

a motive device for rotating said magnetic bearing, wherein at least a portion of said motive device is positioned adjacent to and concentric with the superconducting element.
71. The system for pumping or mixing a fluid according to claim 70, wherein said superconducting element is annular and at least a portion of said motive device is position in a center opening of the annular superconducting element.
72. The system for pumping or mixing a fluid according to claim 71, wherein a portion of the chamber defined by said wall is annular for receiving said annular superconducting element.
73. The system for pumping or mixing a fluid according to claim 72, further including a platform in said chamber for supporting the superconducting element, wherein the platform is thermally linked to the separate cooling source.
74. The system for pumping or mixing a fluid according to claim 73, wherein the chamber housing the superconducting element is evacuated and also houses a thermal link from the cooling source to the platform supporting the superconducting element.
75. The system for pumping or mixing a fluid according to claim 70, wherein the cooling source is a container of a liquid cryogen or a closed-cycle refrigerator.
76. The system for pumping or mixing a fluid according to claim 75, wherein the cooling source is a liquid cryogen container and the chamber housing the superconducting element is evacuated and also houses the cooling source.
77. The system for pumping or mixing a fluid according to claim 70, wherein said motive device includes a shaft carrying a plurality of alternating polarity driving magnets corresponding to a plurality of driven magnets on said magnetic bearing, said driving magnets being received in a thermally separated or isolated bore formed by the wall defining the chamber around said superconducting element.
78. The system for pumping or mixing a fluid according to claim 77, wherein said magnetic bearing comprises:
a levitation magnet corresponding in size and shape to the superconducting element;
at least two driven magnets having opposite polarities, said driven magnets being aligned with the corresponding driving magnets of said motive device, whereby said levitation magnet levitates said bearing while said driven magnets transmit rotary motion to said bearing from said driving magnets.
79. The system for pumping or mixing a fluid according to claim 78, wherein said levitation magnet is annular.
80. The system for pumping or mixing a fluid according to claim 70, wherein said magnetic bearing carries at least one blade or vane.
81. The system for pumping or mixing a fluid according to claim 70, wherein said chamber is evacuated or filled with an insulating material.
82. The system for pumping or mixing a fluid according to claim 70, wherein the vessel is a pipe, the wall defining the chamber thermally isolating the superconducting element is positioned inside of said pipe and includes a thermally separated or isolated bore for receiving a driven shaft carrying a
83 plurality of alternating polarity driving magnets forming a park of said motive device and magnetically coupling with a plurality of corresponding driven magnets in or on said magnetic bearing.

83. A system for pumping or mixing a fluid in a vessel, comprising:
a magnetic bearing for placement in the vessel;
at least one superconducting element for levitating said magnetic bearing;
a wall defining a chamber around the superconducting element, said chamber thermally isolating the superconducting element from the vessel;
a separate cooling source thermally linked to said superconducting element;
a first motive device for rotating said magnetic bearing or said superconducting element;
a second motive device for moving the superconducting element relative to the vessel, whereby moving the superconducting element ensures that effective, non-localized pumping or mixing action is afforded by the levitating, rotating bearing.
84. The system for pumping or mixing a fluid according to claim 83, wherein the second motive device is a linear motion device for moving the superconducting element to and fro.
85. The system for pumping or mixing a fluid according to claim 83, wherein:

said superconducting element is supported by the wall defining said chamber, and wherein said chamber is in turn supported from a stable mounting structure by a bearing permitting rotational motion, said motive device rotating said wall and said superconducting element together;
said first motive device is a motor coupled to said wall by an endless belt, wherein said endless belt transfers the rotary motion produced by said motor to said wall to cause said superconducting element to rotate; and wherein the second motive device includes a support structure for supporting the wall, the stable mounting structure, and the motor, and a linear motion device for moving the support structure to and fro relative to the vessel.
86. An assembly for use in containing a fluid undergoing a pumping or mixing operation, comprising:
a vessel formed of a flexible disposable material capable of holding the fluid; and a levitating magnetic bearing positioned in said vessel, whereby said magnetic bearing is levitated in the vessel and can be disposed of along with said vessel when said pumping or mixing operation is complete.
87. The assembly according to claim 86, wherein the vessel is selected from the group consisting of an open-top container, a pipe, a container having an inlet and an outlet, a sealed.container, and a bag.
88. The assembly according to claim 86, further including a rigid or semi-rigid support container for receiving and providing support for said flexible vessel.
89. The assembly according to claim 86, further including an attachment for placement over the flexible container carrying a coupler for coupling with the magnetic bearing prior to use.
90. A system for pumping or mixing a fluid, comprising:
a vessel capable of holding the fluid;
a levitating magnetic bearing positioned in the vessel, said bearing capable of being rotated in a non-contact fashion to create the pumping or mixing action;
a controller for controlling the rotation of said magnetic bearing;
a transmitter for generating a signal; and a receiver for receiving the signal generated by the transmitter;
wherein one of said vessel or said bearing carries the transmitter for generating the signal or the receiver for receiving the signal generated by the transmitter, and wherein said controller prevents said bearing from rotating until an appropriate signal is received by the receiver.
91. A kit for assisting in the set-up of a fluid pumping or mixing system wherein a magnetic bearing including at least one levitation magnet is levitated in a vessel by a superconducting element in communication with a cooling source for cooling the superconducting element to a transition temperature during a field cooling process, comprising:

at least one charging magnet substantially corresponding in size, shape, and magnetic field distribution to the at least one levitation magnet of the magnetic bearing, wherein the charging magnet is placed over the superconducting element during cooling to create a magnetic field, whereby the presence of the magnetic field during cooling serves to charge the superconducting element for levitating the magnetic bearing in the vessel.
92. The kit according to claim 91, further including a plurality of charging magnets, each corresponding in size, shape, and magnetic field distribution to the at least one levitation magnet in one of a plurality of magnetic bearings for use in the pumping or mixing system.
93. The kit according to claim 91, further including a spacer for spacing the charging magnet from the superconducting element at a predetermined level, wherein this spacing serves to define a levitation height of the magnetic bearing above the superconducting element during field cooling.
94. A system for pumping or mixing a fluid in a vessel, comprising:
a magnetic bearing for placement in the vessel;
at least one superconducting element for levitating said magnetic bearing;
a separate cooling source thermally linked to said superconducting element;
a motive device for rotating one of said magnetic bearing or said superconducting element, wherein said bearing includes at least one levitation-assist chamber for holding a substance that is lighter than the fluid in said vessel, whereby the chamber assists in levitating the magnetic bearing in the fluid.
95. The system for pumping or mixing a fluid according to claim 94, wherein said substance is air.
96. The system for pumping or mixing a fluid according to claim 94, wherein said levitating magnetic bearing further includes a first permanent magnet positioned adjacent to said superconducting element and a second permanent magnet spaced from said first permanent magnet for forming a magnetic coupling with a drive magnet forming a part of said motive device, wherein a levitation-assist chamber is provided on each of said magnetic bearings.
97. The system for pumping or mixing a fluid according to claim 96, wherein a shaft is provided for coupling said first and second permanent magnets together, wherein a levitation-assist chamber is provided around at least a portion of said shaft.
98. A cryostat for keeping an annular superconducting element thermally isolated from the ambient environment, comprising:
an outer wall defining an annular chamber for housing the annular superconducting element, said annular chamber being evacuated or insulated to thermally isolate the superconducting element from the wall.
99. The cryostat according to claim 98, wherein the wall defining said annular chamber also defines a thermally separated and isolated bore, whereby said bore has an upper wall for supporting a fluid containing vessel adjacent to said cryostat and an open end for receiving at least a portion of a motive device for rotating a magnetic bearing carried in the vessel.
100. The cryostat according to claim 98, further including a second evacuated or insulated chamber for housing a thermal link to the superconducting element from a cooling source.
101. The cryostat according to claim 99, further including a third chamber for housing the cooling source.
102. The cryostat according to claim 99, wherein the first, second, and third chambers are in fluid communication and may be evacuated by a single vacuum source.
103. A magnetic bearing for use in a pumping or mixing system having an annular superconducting element and a concentric motive device including a plurality of driving magnets, comprising;
an annular levitation magnet for positioning adjacent to and in substantial alignment with the annular superconducting element;
a plurality of permanent driven magnets positioned in the opening in said annular levitation magnet, whereby said driven magnets align and magnetically couple with the driving magnets of said motive device.
104. A magnetic bearing for levitating and rotating adjacent to a superconducting element to pump or mix a fluid held in a vessel having a relatively narrow opening, comprising:
at least one elongated rod carrying first and second levitation magnets, said rod having a length that exceeds a major dimension of the opening in the vessel;
wherein said rod is capable of being inserted in the relatively narrow opening in the vessel and moving to a position where the magnets are in substantial alignment with the superconducting element.
105. The bearing according to claim 104, wherein the rod is formed of a flexible material and is thus capable of being deformed during insertion in the relatively narrow opening in the vessel.
106. A magnetic bearing for levitating and rotating above a superconducting element to pump or mix a fluid held in a vessel having a relatively narrow opening, comprising:
a pair of interconnected, elongated rods positioned substantially orthogonal to each other in a nominal position, each carrying first and second levitation magnets having the same polarity, each said rod having a length that exceeds a major dimension of said opening;
wherein at least one of said rods is capable of being folded for passing through the relatively narrow opening in the vessel and moving to a position where the levitation magnets are in substantial alignment with the superconducting element.
107. The bearing according to claim 106, wherein the rods are pinned together and are thus capable of rotating about a common center, wherein the rods can be rotated to a partially folded position about the pinned connection for passing through a narrow opening in a container.
108. The bearing according to claim 106, wherein the rods are rigidly coupled together and at least one of the rods is formed of a flexible material, whereby the flexible rod is capable of being deformed for passing through relatively narrow opening in the vessel.
109. A system for levitating a magnet, comprising:
at least one superconducting element;
a cooling source thermally linked to the superconducting element, said cooling source cooling the superconducting element to a transition temperature in the presence of a magnetic field to induce levitation in the magnet;
a heater for warming said superconducting element to above the transition temperature such that the superconducting element may again be cooled in the presence of the same or a different magnetic field to induce levitation in the same or a different magnet.
110. The system according to claim 103, wherein the heater is an electric coil positioned adjacent to the superconducting element and in communication with a power supply.
111. A method of levitating and rotating a magnetic bearing for pumping ox mixing a fluid, comprising:
placing the magnetic bearing in the vessel;
levitating the magnetic bearing above a superconducting element positioned in an evacuated or insulated chamber adjacent to the vessel and thermally linked to a separate cooling source; and rotating the magnetic bearing in the vessel.
112. The method according to claim 111, further including the steps of placing said magnetic bearing in the vessel prior to falling the vessel with a fluid, and after mixing or pumping is completed, disposing of said magnetic bearing and vessel.
113. The method according to claim 112, including the step of completely sealing the vessel prior to rotating said magnetic bearing.
114. The method according to claim 111, wherein the magnetic bearing includes at least two magnets having different polarities to create a non-symmetrical magnetic field relative to an axis of rotation, and said step of rotating the magnetic bearing includes rotating the superconducting element to cause said magnetic bearing to rotate about said axis.
115. The method according to claim 111, wherein the vessel is a flexible bag for containing the fluid, and the method further includes placing the bearing in the flexible bag prior to filling the bag with the fluid.
116. A method of levitating and rotating a magnetic bearing for pumping or mixing a fluid, comprising:
placing a magnetic bearing carrying first and second magnets having different polarities to create a non-symmetrical magnetic field in a vessel;
levitating the magnetic bearing in the vessel using a superconducting element;
rotating the superconducting element to induce rotation in the bearing.
117. A method of levitating and rotating a magnetic bearing for pumping or mixing a fluid, comprising:
placing a magnetic bearing in the vessel;
levitating the magnetic bearing in the vessel using a superconducting element;
rotating the magnetic bearing using a driving magnet positioned adjacent to and concentric with the superconducting element.
118. A method of charging a superconducting element for levitating a magnetic bearing in a vessel, comprising the steps of:

placing a charging magnet corresponding to the magnetic bearing in size, shape, and magnetic field distribution adjacent to the superconducting element;
cooling the superconducting element to below a transition temperature;
removing the charging magnet;
positioning the magnetic bearing in the vessel over the superconducting element.
119. The method according to claim 118, further including spacing the charging magnet a preselected distance from the superconducting element during cooling, whereby the preselected distance corresponds to the levitation height of the magnetic bearing.
120. The method according to claim 118, further including removing the magnetic bearing, warming the superconducting element to above the transition temperature, positioning a different charging magnet over the superconducting element, cooling the superconducting element to below the transition temperature, and positioning a different magnetic bearing corresponding in size, shape, and magnetic field distribution to the different charging magnet over the superconducting element.
121. A method of levitating and rotating a magnetic bearing in a fluid containing vessel, comprising:
placing a magnetic bearing having at least one chamber containing a substance that is lighter than the fluid held in the vessel;
levitating the magnetic bearing above a superconducting element positioned in an evacuated or insulated chamber adjacent to the vessel and thermally linked to a separate cooling source; and rotating the magnetic bearing in the vessel, whereby the substance. in the chamber assists in levitating the magnetic bearing in the fluid.
122. A method of ensuring that a levitating magnetic bearing for pumping or mixing a fluid corresponds to an adjacent pumping or mixing system, comprising:
providing a transmitter on or adjacent to one of the magnetic bearing or the pumping or mixing system for transmitting a signal;
providing a receiver on or adjacent to the opposite of the magnetic bearing or the pumping or mixing system for receiving the signal generated by the transmitter;
preventing the operation of the system until the signal is received by the receiver.
123. A method of levitating and rotating a magnetic bearing for pumping or mixing a fluid in a vessel, comprising:
placing the magnetic bearing in the vessel;
levitating the magnetic bearing above a superconducting element positioned in an evacuated or insulated chamber adjacent to the vessel and thermally linked to a separate cooling source;

rotating the magnetic bearing in the vessel;
moving the superconducting element relative to the vessel, whereby the rotating magnetic bearing follows the movement of the superconducting element to ensure that effective, non-localized pumping or mixing action is provided.
124. The method according to claim 123, wherein the step of rotating the magnetic bearing includes rotating the superconducting element, and wherein the step of moving the superconducting element includes moving the superconducting element to and fro relative to the vessel in a linear fashion.
CA2425232A 2000-10-09 2001-01-12 Pumping or mixing system using a levitating bearing Expired - Fee Related CA2425232C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US23918700P 2000-10-09 2000-10-09
US60/239,187 2000-10-09
US09/724,815 US6758593B1 (en) 2000-10-09 2000-11-28 Pumping or mixing system using a levitating magnetic element, related system components, and related methods
US09/724,815 2000-11-28
PCT/US2001/001080 WO2002031372A1 (en) 2000-10-09 2001-01-12 Pumping or mixing system using a levitating bearing

Publications (2)

Publication Number Publication Date
CA2425232A1 true CA2425232A1 (en) 2002-04-18
CA2425232C CA2425232C (en) 2011-03-22

Family

ID=26932357

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2425232A Expired - Fee Related CA2425232C (en) 2000-10-09 2001-01-12 Pumping or mixing system using a levitating bearing

Country Status (9)

Country Link
US (3) US6758593B1 (en)
EP (1) EP1332299B1 (en)
JP (1) JP4934776B2 (en)
AT (1) ATE459814T1 (en)
AU (1) AU2001229412A1 (en)
CA (1) CA2425232C (en)
DE (1) DE60141472D1 (en)
IL (2) IL155267A0 (en)
WO (1) WO2002031372A1 (en)

Families Citing this family (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8182137B2 (en) 2000-10-09 2012-05-22 Atmi Packaging, Inc. Mixing bag or vessel with a fluid-agitating element
US6837613B2 (en) * 2001-04-10 2005-01-04 Levtech, Inc. Sterile fluid pumping or mixing system and related method
US7086778B2 (en) * 2000-10-09 2006-08-08 Levtech, Inc. System using a levitating, rotating pumping or mixing element and related methods
EP1534412B1 (en) * 2001-10-03 2010-08-18 Levtech Inc. Mixing vessel having a receiver for a fluid-agitating element
GB0124341D0 (en) * 2001-10-10 2001-11-28 Randox Lab Ltd Assay
US6793433B2 (en) * 2002-01-24 2004-09-21 Juan David Giraldo Travel toothbrush with dental cream included
US6908223B2 (en) 2002-04-12 2005-06-21 Hynetics Llc Systems for mixing liquid solutions and methods of manufacture
US6923567B2 (en) * 2002-04-12 2005-08-02 Hynetics Llc Mixing tank assembly
US6981794B2 (en) * 2002-04-12 2006-01-03 Hynetics Llc Methods for mixing solutions
US7153021B2 (en) * 2003-03-28 2006-12-26 Hyclone Laboratories, Inc. Container systems for mixing fluids with a magnetic stir bar
US7168848B2 (en) * 2003-07-02 2007-01-30 Spx Corporation Axial-pumping impeller apparatus and method for magnetically-coupled mixer
US8033252B2 (en) * 2003-10-09 2011-10-11 Mag-Life Llc Aquarium having improved filtration system with neutral buoyancy substrate, pump and sediment removal system
US7430989B2 (en) * 2003-10-09 2008-10-07 Mag-Life Llc Aquarium having improved filtration system with neutral buoyancy substrate and sediment removal system
US7249571B2 (en) * 2003-10-09 2007-07-31 Mag-Life Llc Aquarium having improved filtration system
US8513848B2 (en) 2003-10-09 2013-08-20 Mag Life, Llc Aquarium having improved filtration system with neutral buoyancy substrate, pump and sediment removal system
EP1557220A3 (en) * 2003-12-30 2005-08-03 Michael Mosulet Apparatus for dispensing a carbonated beverage
CA2552717C (en) * 2004-01-07 2011-11-29 Levtech, Inc. Mixing bag with integral sparger and sensor receiver
US7305836B2 (en) * 2004-05-19 2007-12-11 Eden Innovations Ltd. Cryogenic container and superconductivity magnetic energy storage (SMES) system
WO2005118771A2 (en) * 2004-06-04 2005-12-15 Xcellerex, Inc. Disposable bioreactor systems and methods
US8474369B2 (en) * 2004-11-26 2013-07-02 Walter B. Herbst Electric skillet with magnetic self-reversing stirrer that is removable
KR101213559B1 (en) * 2004-12-22 2012-12-18 겐조 다카하시 Apparatus and method for agitating, and melting furnace attached to agitation apparatus using agitation apparatus
EP1859166B1 (en) * 2005-03-16 2016-01-13 Ecotech Marine, LLC Bracketless magnetic pump
US7396153B2 (en) * 2005-04-05 2008-07-08 Andersson Per-Olof K Ultraclean magnetic mixer
AU2006232297B2 (en) * 2005-04-05 2010-06-24 Alfa Laval Corporate Ab Ultraclean magnetic mixer
US7740031B2 (en) * 2005-04-26 2010-06-22 Eden Innovations Ltd. System for blending and compressing gases
US7407322B2 (en) * 2005-08-17 2008-08-05 Spx Corporation Tripod-mounted magnetic mixer apparatus and method
WO2008040567A1 (en) * 2006-10-03 2008-04-10 Artelis Flexible mixing bag, mixing device and mixing system
CN101300338B (en) * 2005-10-26 2015-10-21 Atmi包装公司 There is the bio-reactor of mixing tank and injector
US7547385B2 (en) * 2005-11-14 2009-06-16 Eden Innovations Ltd. Method and system for producing a supercritical cryogenic fuel (SCCF)
JP2007162913A (en) * 2005-11-21 2007-06-28 Niigata Univ Magnetic levitation type rotating device
JP4644766B2 (en) * 2005-11-21 2011-03-02 国立大学法人 新潟大学 Non-contact type workpiece processing equipment
JP4671292B2 (en) * 2006-09-22 2011-04-13 国立大学法人 新潟大学 Magnetic levitation rotation processing equipment
WO2007069433A1 (en) * 2005-12-16 2007-06-21 Niigata University Noncontact rotating processor
US7497191B2 (en) 2006-02-06 2009-03-03 Eden Innovations Ltd. System and method for producing, dispensing, using and monitoring a hydrogen enriched fuel
US7748893B2 (en) * 2006-02-14 2010-07-06 Bel-Art Products, Inc. Magnetic stirring arrangement
US20070247968A1 (en) * 2006-04-21 2007-10-25 V & P Scientific, Inc. Sandwich magnetic stir elements for stirring the contents of vessels
WO2007134267A2 (en) 2006-05-13 2007-11-22 Advanced Technology Materials, Inc. Disposable bioreactor
US20070277438A1 (en) * 2006-05-30 2007-12-06 Brehon Energy Plc System and method for producing a hydrogen enriched fuel
US7520657B2 (en) * 2006-07-14 2009-04-21 Sigma-Aldrich Co. Magnetic stirrer
US20080151686A1 (en) * 2006-11-14 2008-06-26 Charles Meadows Mixing bag for use with nonabrasive stir bar
US9090398B2 (en) * 2007-05-04 2015-07-28 Emd Millipore Corporation Disposable processing bag with alignment feature
US8752449B2 (en) 2007-05-08 2014-06-17 Brooks Automation, Inc. Substrate transport apparatus with multiple movable arms utilizing a mechanical switch mechanism
US9752615B2 (en) 2007-06-27 2017-09-05 Brooks Automation, Inc. Reduced-complexity self-bearing brushless DC motor
WO2009003193A1 (en) 2007-06-27 2008-12-31 Brooks Automation, Inc. Position feedback for self bearing motor
US8823294B2 (en) 2007-06-27 2014-09-02 Brooks Automation, Inc. Commutation of an electromagnetic propulsion and guidance system
US8283813B2 (en) 2007-06-27 2012-10-09 Brooks Automation, Inc. Robot drive with magnetic spindle bearings
WO2009012396A2 (en) 2007-07-17 2009-01-22 Brooks Automation, Inc. Substrate processing apparatus with motors integral to chamber walls
US7707878B2 (en) * 2007-09-20 2010-05-04 Schlumberger Technology Corporation Circulation pump for circulating downhole fluids, and characterization apparatus of downhole fluids
US8986253B2 (en) 2008-01-25 2015-03-24 Tandem Diabetes Care, Inc. Two chamber pumps and related methods
US8408421B2 (en) 2008-09-16 2013-04-02 Tandem Diabetes Care, Inc. Flow regulating stopcocks and related methods
US8650937B2 (en) 2008-09-19 2014-02-18 Tandem Diabetes Care, Inc. Solute concentration measurement device and related methods
EP2380192A4 (en) * 2008-12-19 2014-07-30 Lam Res Ag Device for treating disc-like articles and method for oparating same
US8282268B2 (en) * 2009-02-24 2012-10-09 Island Oasis Frozen Cocktail Co., Inc. Magnetic drive for food processing apparatus
US20100282099A1 (en) * 2009-05-08 2010-11-11 Lahav Gil Magnetic Homogenizer Apparatus
US20100309746A1 (en) * 2009-06-05 2010-12-09 Andersson Per-Olof K Ultraclean Magnetic Mixer with Shear-Facilitating Blade Openings
US8424492B2 (en) * 2009-07-01 2013-04-23 Mag-Life Llc Aquarium with sweeper
CA2769030C (en) 2009-07-30 2016-05-10 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
DK200900938A (en) * 2009-08-19 2011-02-20 Alfa Laval Corp Ab Agitator
US8550388B2 (en) 2010-03-15 2013-10-08 Moog Inc. Drive circuit with integrated power factor correction for blender/shaver machine
US9850118B2 (en) * 2010-08-20 2017-12-26 Pepsico, Inc. Bag-in-box pump system
CA2806492C (en) 2010-08-23 2018-08-07 Ecotech Marine, Llc Pump and pump assembly
ES2393378B1 (en) * 2011-06-07 2013-10-31 Electrodomésticos Taurus, S.L. KITCHEN BASKET WITH ROTATING DRIVING MEDIA AND KITCHEN CONTAINER USED WITH SIDE UP
JP5792652B2 (en) * 2012-02-07 2015-10-14 武蔵エンジニアリング株式会社 Stirring device, discharge device including the same, and discharge method
US9180242B2 (en) 2012-05-17 2015-11-10 Tandem Diabetes Care, Inc. Methods and devices for multiple fluid transfer
FI20125549L (en) * 2012-05-24 2013-11-25 Teknologian Tutkimuskeskus Vtt Oy Reactor for processing materials with a high solids content
US9555186B2 (en) 2012-06-05 2017-01-31 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US9339026B2 (en) 2012-06-14 2016-05-17 Therapeutic Proteins International, LLC Pneumatically agitated and aerated single-use bioreactor
JP5991690B2 (en) * 2012-11-14 2016-09-14 セイコー化工機株式会社 Superconducting bearing device and superconducting rotating device
WO2014134600A1 (en) 2013-03-01 2014-09-04 Vita-Mix Corporation Blending system
US9855535B2 (en) 2013-03-01 2018-01-02 Vita-Mix Management Corporation Blending system
US9173998B2 (en) 2013-03-14 2015-11-03 Tandem Diabetes Care, Inc. System and method for detecting occlusions in an infusion pump
CN103225651B (en) * 2013-04-24 2015-05-20 中国科学院电工研究所 Superconducting magnetic levitation and static suspension mixing suspension supporting arrangement
BR112015031637B1 (en) 2013-06-28 2022-01-18 Saint-Gobain Performance Plastics Corporation MIXING ASSEMBLIES INCLUDING MAGNETIC IMPELLERS
US11944946B2 (en) 2013-06-28 2024-04-02 Saint-Gobain Performance Plastics Corporation Mixing assemblies including magnetic impellers
CN110172406B (en) 2013-09-16 2023-08-08 豪夫迈·罗氏有限公司 Bioreactor with multiple or adjustable position agitator designs
DE102014001527B4 (en) * 2014-02-07 2017-11-30 Festo Ag & Co. Kg Device for influencing a flow of parts
DE102014001526B4 (en) 2014-02-07 2022-02-24 Festo Se & Co. Kg Superconductor storage means and device for material testing and/or material processing
USD771999S1 (en) 2014-03-14 2016-11-22 Vita-Mix Management Corporation Blender base
US8979357B1 (en) 2014-03-17 2015-03-17 Advanced Scientifics, Inc. Transportable mixing system for biological and pharmaceutical materials
US9101893B1 (en) 2014-03-17 2015-08-11 Advanced Scientifics, Inc. Mixing assembly and mixing method
US9643142B2 (en) 2014-07-01 2017-05-09 Advanced Scientifics, Inc. Plunge-mixing bag arrangement and plunge-mixing system
EP3279764A4 (en) * 2015-03-30 2018-12-05 Exascaler Inc. Electronic-device cooling system
CN113144983A (en) 2015-04-16 2021-07-23 通用电气医疗集团生物科学公司 Biological treatment mixer
FR3038526A1 (en) * 2015-07-06 2017-01-13 Provaine SYSTEM FOR MANUFACTURING A FORMULATION
US10406526B1 (en) * 2015-08-26 2019-09-10 Bernard Robert McKellar Convertible hotplate adapter for rounded vessels and the like
US11033153B2 (en) 2016-06-10 2021-06-15 Vita-Mix Management Corporation Drive coupler for blender
US11206941B2 (en) * 2016-12-13 2021-12-28 Societe Des Produits Nestle S.A. High torque magnetic transmission for whisk
NO346774B1 (en) * 2016-12-28 2022-12-27 Halliburton Energy Services Inc Magnetic Coupler with Force Balancing
US11478766B2 (en) 2017-06-30 2022-10-25 Vita-Mix Management Corporation Intelligent blending system
RU2653021C1 (en) * 2017-08-01 2018-05-04 Общество с ограниченной ответственностью "Эволюция Биогазовых Систем" Method for centrifugal whirling of raw material and centrifugal whirling apparatus
US10610843B2 (en) 2017-11-28 2020-04-07 Talis Biomedical Corporation Magnetic mixing apparatus
CN109894035A (en) * 2017-12-09 2019-06-18 北京中飞华正检测技术服务有限公司 A kind of stirrer of magnetic stirring apparatus
US10047717B1 (en) * 2018-02-05 2018-08-14 Energystics, Ltd. Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof
GB201811402D0 (en) * 2018-07-12 2018-08-29 Alconbury Weston Ltd Liquid process assembly
US10480711B1 (en) * 2018-07-24 2019-11-19 Motorola Solutions, Inc. Magnet mount apparatus for a portable communication device
WO2020117610A1 (en) * 2018-12-08 2020-06-11 Min Wei Apparatus for manufacturing cell therapy product
CN109966970A (en) * 2019-03-28 2019-07-05 湖北华海纤维科技股份有限公司 A kind of papermaking chemic producer
WO2021003282A1 (en) 2019-07-01 2021-01-07 Oakwood Laboratories, Llc System and method for making microspheres and emulsions
US10820683B1 (en) 2019-07-30 2020-11-03 Motorola Solutions, Inc. Holster with attachment interface
US10820847B1 (en) 2019-08-15 2020-11-03 Talis Biomedical Corporation Diagnostic system
CN110917958A (en) * 2019-12-29 2020-03-27 张继波 Magnetic suspension ultra-silent energy-saving mixer
USD927923S1 (en) 2020-03-20 2021-08-17 Vita-Mix Management Corporation Blender base
RU2771497C2 (en) * 2020-11-02 2022-05-05 Общество с ограниченной ответственностью "Эволюция Биогазовых Систем" Method for counter-vortex processing of raw materials and counter-vortex layer apparatus for processing raw materials
IL280938A (en) * 2021-02-17 2022-09-01 Shalev Evyatar System for mixing liquid

Family Cites Families (202)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733857A (en) 1956-02-07 beams
US2184152A (en) * 1939-10-27 1939-12-19 Jacob A Saffir Ampoule
US2506886A (en) 1948-04-19 1950-05-09 Automatic Magnetic Agitators L Magnetic drive agitator
US2693654A (en) * 1948-08-20 1954-11-09 Kathleen J Clark Article attaching means
US2810556A (en) 1955-03-14 1957-10-22 Tormag Transmissions Ltd Agitators for fluid cooling tanks and the like
US3110481A (en) 1958-09-26 1963-11-12 Westinghouse Electric Corp Magnetic shaft damper
US3172645A (en) * 1961-07-21 1965-03-09 Doryce Appleton Agitator for foods of a liquid form containing solids
US3187236A (en) 1962-03-19 1965-06-01 North American Aviation Inc Means for insulating superconducting devices
US3187235A (en) 1962-03-19 1965-06-01 North American Aviation Inc Means for insulating superconducting devices
US3422765A (en) 1967-03-24 1969-01-21 Gen Electric Superconducting liquid helium pump
US3438328A (en) 1967-11-27 1969-04-15 Nikolaus Laing Magnetic torque transmission device
US3497846A (en) * 1967-12-27 1970-02-24 Us Navy Magnetic anchor for curved and irregular surfaces
DE1933031C3 (en) 1969-06-30 1978-10-26 Karl 5170 Juelich Boden Magnetic storage
US3518884A (en) * 1968-11-21 1970-07-07 Midwest Research & Dev Corp Magnetic thermometer mounting structure
US3608088A (en) 1969-04-17 1971-09-28 Univ Minnesota Implantable blood pump
US3647397A (en) * 1969-11-19 1972-03-07 Charles M Coleman Reagent solution preparation
US3647324A (en) 1969-12-18 1972-03-07 Edson Howard Rafferty Electrically driven pumps capable of use as heart pumps
US3598456A (en) 1970-01-23 1971-08-10 Halliburton Co Magnetically supported rotor in a conduit
US3689033A (en) 1970-08-10 1972-09-05 Lkb Produkter Ab Magnetic stirrer device
AT305778B (en) 1970-09-11 1973-03-12 Standard Magnet Ag Centrifugal pump
US3888466A (en) 1971-02-02 1975-06-10 Coca Cola Co Agitating apparatus
US3778122A (en) 1971-07-29 1973-12-11 R Doll System for contact-free, axially stabilized and radially centered positioning of a rotating shaft, particularly of an operating machine for low temperatures
US3981803A (en) 1971-11-11 1976-09-21 Coulthard J L Method and apparatus for anaerobic fermentation
US4090745A (en) 1974-01-14 1978-05-23 Sperry Rand Corporation Magnetic suspension with magnetic stiffness augmentation
SE380100B (en) * 1974-02-07 1975-10-27 Monega Anstalt
US3985649A (en) * 1974-11-25 1976-10-12 Eddelman Roy T Ferromagnetic separation process and material
US4044567A (en) 1975-09-02 1977-08-30 Texas Instruments Incorporated Modular, magnetically-coupled drive for a cryogenic refrigerator
DE2554906A1 (en) 1975-12-06 1977-06-16 Linde Ag METHOD AND DEVICE FOR COOLING OBJECTS WITH A CIRCULATED COOLING GAS
US4080112A (en) 1976-02-03 1978-03-21 March Manufacturing Company Magnetically-coupled pump
DE7625599U1 (en) 1976-08-14 1976-11-25 Friedrich Uhde Gmbh, 4600 Dortmund PERMANENT MAGNETIC STIR DRIVE
US4123676A (en) 1976-10-22 1978-10-31 Westinghouse Electric Corp. Rotor member for superconducting generator
US4135253A (en) 1976-11-30 1979-01-23 Medtronic, Inc. Centrifugal blood pump for cardiac assist
US4184090A (en) 1977-10-13 1980-01-15 Nova Research Foundation Corporation Rotary magnetic isolation coupling
CH627314A5 (en) 1978-01-24 1981-12-31 Bbc Brown Boveri & Cie
US4185617A (en) 1978-04-27 1980-01-29 Hutchins Thomas B Magnetically driven cardiac-assist pump system
DE2826501B1 (en) 1978-06-16 1979-11-08 Siemens Ag Evacuation device for generating an insulating vacuum around the superconducting winding of a rotor
JPS6231121Y2 (en) 1978-06-30 1987-08-10
US4199265A (en) 1978-10-30 1980-04-22 American Hospital Supply Corporation Motorless magnetically coupled stirrer
US4209259A (en) 1978-11-01 1980-06-24 Rains Robert L Magnetic mixer
JPS5565408A (en) 1978-11-13 1980-05-16 Toshiba Corp Superconductive electromagnet
US4214874A (en) * 1979-02-08 1980-07-29 American Hospital Supply Corporation Combination and method for mixing the contents of a blood collection tube and thereafter removing the mixing element
US4204774A (en) 1979-02-26 1980-05-27 Bruyne Norman A De Synchronous stirrer
DE3003024A1 (en) 1980-01-29 1981-07-30 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe FLUESSIGHELIUM PUMP
US4390283A (en) 1979-09-04 1983-06-28 Beckman Instruments, Inc. Magnetic strirrer for sample container
US4264215A (en) 1979-09-17 1981-04-28 Sybron Corporation Separable blade impeller
US4300356A (en) 1979-11-21 1981-11-17 Union Carbide Corporation Refrigeration storage assembly
EP0052324B1 (en) 1980-11-17 1986-03-05 Helmut Dipl.-Ing. Herz Magnetic mixer
US4688998A (en) 1981-03-18 1987-08-25 Olsen Don B Magnetically suspended and rotated impellor pump apparatus and method
US4355906A (en) 1981-04-03 1982-10-26 Bellco Glass Inc. Stirring apparatus for cell culture
US4417772A (en) 1981-04-10 1983-11-29 Agence Spatiale Europeenne Method and apparatus for controlling the energization of the electrical coils which control a magnetic bearing
US4498785A (en) 1982-06-09 1985-02-12 Techne Corporation Floating magnetic stirrer for culture medium
GB2128576B (en) 1982-10-16 1987-04-08 Johnsen Jorgensen Jaypak Making compartmented bags
US4483623A (en) 1983-04-15 1984-11-20 Corning Glass Works Magnetic stirring apparatus
US4736494A (en) * 1984-07-06 1988-04-12 Minu S.P.A. Magnetic button for articles of clothing, leather goods, and the like
US4526015A (en) 1984-10-15 1985-07-02 General Electric Company Support for cryostat penetration tube
US4678409A (en) 1984-11-22 1987-07-07 Fuji Photo Film Co., Ltd. Multiple magnetic pump system
US4725207A (en) 1985-02-21 1988-02-16 Regents Of The University Of Minnesota Automated peritoneovenous shunt
US4642257A (en) * 1985-06-13 1987-02-10 Michael Chase Magnetic occluding device
US4674960A (en) 1985-06-25 1987-06-23 Spectra-Physics, Inc. Sealed rotary compressor
US4759635A (en) 1985-08-08 1988-07-26 Techne Corporation Magnetic stirrer apparatus with improved stirring action
US4591357A (en) 1985-09-27 1986-05-27 Sneider Vincent R Container for drug isolation, storage and subsequent mixing
US4615662A (en) 1985-11-21 1986-10-07 Karsten Laing Axial thrust compensation for centrifugal pump
EP0238908A1 (en) 1986-03-19 1987-09-30 Siemens Aktiengesellschaft Cryosorption pump for thermal vacuum insulation of the rotor of an electric machine provided with a supra-conducting field coil
US4711582A (en) 1986-11-07 1987-12-08 Kennedy Richard B Rotary mixing of two component resins in disposable plastic bag
JPS6393606U (en) 1986-12-04 1988-06-17
JPS63147648A (en) * 1986-12-12 1988-06-20 Mitsubishi Kasei Corp Ink container for ink jet printing
US4913555A (en) 1987-01-14 1990-04-03 Sanyo Electric Co., Ltd. Whipping machine
US4993841A (en) 1987-02-05 1991-02-19 Steridose Systems Ab Magnetic impeller means for a mixing vessel
EP0363441B1 (en) 1987-03-02 1992-09-09 Ionode Pty. Ltd. Mixing apparatus and method
JPS63223390A (en) 1987-03-13 1988-09-16 Nitsukisou Eiko Kk Multiple magnet-driven type pump
US4779614A (en) 1987-04-09 1988-10-25 Nimbus Medical, Inc. Magnetically suspended rotor axial flow blood pump
US4797386A (en) 1987-04-22 1989-01-10 American Telephone And Telegraph Company, At&T Bell Labs Superconductor-magnet induced separation
DE3724569A1 (en) 1987-07-24 1989-02-02 Spectrospin Ag CRYOSTAT
US4892863A (en) 1988-09-30 1990-01-09 Eastman Kodak Company Electric machinery employing a superconductor element
US5126317A (en) 1988-09-30 1992-06-30 Eastman Kodak Company Bearing system employing a superconductor element
DD278947A1 (en) 1988-12-29 1990-05-23 Mlw Pruefgeraete Werk Medingen ELECTRONIC MAGNETIC MIXER
US5089017A (en) 1989-01-17 1992-02-18 Young David B Drive system for artificial hearts and left-ventricular assist devices
KR0138254B1 (en) 1989-03-10 1998-04-27 니시오카 시게루 Stirrer
US5061679A (en) 1989-03-17 1991-10-29 The University Of Arkansas Drive system employing frictionless bearings including superconducting matter
US5049134A (en) 1989-05-08 1991-09-17 The Cleveland Clinic Foundation Sealless heart pump
DE3915578C1 (en) 1989-05-12 1990-11-15 Spectrospin Ag, Faellanden, Zuerich, Ch
DE3915788C2 (en) 1989-05-13 1994-09-15 Spectrospin Ag Cryostat with an overpressure cover
US5045074A (en) 1989-05-17 1991-09-03 Board Of Regents, The University Of Texas System Direct drive blood defibrination apparatus and method
GB8911878D0 (en) * 1989-05-24 1989-07-12 Allen Nicholas J Mixing device
US4960521A (en) 1989-06-16 1990-10-02 Andreas Keller Process for performing a dialysis operation using a magnetic weighted clamp
US4984972A (en) 1989-10-24 1991-01-15 Minnesota Mining And Manufacturing Co. Centrifugal blood pump
US5120135A (en) * 1989-12-13 1992-06-09 Syntex (U.S.A.) Inc. Method and apparatus for keeping particles in suspension
US5078969A (en) 1989-12-14 1992-01-07 Cell Analysis Systems, Inc. Magnetic stirrer
US5001448A (en) 1989-12-18 1991-03-19 General Electric Company Shield for a magnet
US5112202A (en) 1990-01-31 1992-05-12 Ntn Corporation Turbo pump with magnetically supported impeller
FR2659396B1 (en) 1990-03-07 1992-05-15 Cit Alcatel VACUUM PUMP FOR CLEAN MOLECULAR VACUUM.
US5032869A (en) 1990-04-06 1991-07-16 General Electric Company Axial thermal shield support for a MR magnet
US5211546A (en) 1990-05-29 1993-05-18 Nu-Tech Industries, Inc. Axial flow blood pump with hydrodynamically suspended rotor
US5633548A (en) 1990-07-17 1997-05-27 Koyo Seiko Co., Ltd. Method for setting up a superconducting bearing device
US5330967A (en) 1990-07-17 1994-07-19 Koyo Seiko Co., Ltd. Superconducting bearing device stabilized by trapped flux
US5113165A (en) 1990-08-03 1992-05-12 General Electric Company Superconductive magnet with thermal diode
JPH04219493A (en) 1990-08-10 1992-08-10 Ebara Corp Turbo-molecular pump
US5195877A (en) 1990-10-05 1993-03-23 Kletschka Harold D Fluid pump with magnetically levitated impeller
US5470208A (en) 1990-10-05 1995-11-28 Kletschka; Harold D. Fluid pump with magnetically levitated impeller
US5055005A (en) 1990-10-05 1991-10-08 Kletschka Harold D Fluid pump with levitated impeller
US5096390A (en) 1990-10-16 1992-03-17 Micropump Corporation Pump assembly with integral electronically commutated drive system
US5197865A (en) 1990-10-16 1993-03-30 Micropump Corporation Integral electronically commutated drive system
US5126611A (en) 1991-02-06 1992-06-30 Allied-Signal Inc. Composite superconductor disc bearing
DE4106497A1 (en) 1991-03-01 1992-09-03 Gerhard O Wirges POWER GENERATOR
JPH0737812B2 (en) 1991-03-15 1995-04-26 光洋精工株式会社 Superconducting bearing device
US5177054A (en) 1991-04-08 1993-01-05 Emerson Electric Co. Flux trapped superconductor motor and method therefor
US5316440A (en) 1991-05-10 1994-05-31 Terumo Kabushiki Kaisha Blood pump apparatus
US5159219A (en) 1991-05-16 1992-10-27 University Of Houston-University Park Opposed-magnet bearing with interposed superconductor
US5298875A (en) 1991-05-22 1994-03-29 International Business Machines Corporation Controllable levitation device
JP2547287B2 (en) 1991-07-30 1996-10-23 株式会社四国総合研究所 Superconducting bearing device
US5256638A (en) 1991-11-14 1993-10-26 United Technologies Corporation Magnetically leviated superconducting bearing
US5350283A (en) 1991-12-04 1994-09-27 Ntn Corporation Clean pump
US5267791A (en) 1991-12-13 1993-12-07 Corning Incorporated Suspended cell culture stirring vessel closure and apparatus
US5183336A (en) 1992-01-21 1993-02-02 Kontes Glass Company Stirring assembly
DE4201693C1 (en) 1992-01-23 1993-04-08 Sartorius Ag, 3400 Goettingen, De Magnetic stirrer - includes sensor monitoring synchronism of rotating core and driving field, the field being produced by fixed spools supplied with phase displaced alternating current
US5525849A (en) 1992-02-14 1996-06-11 Seiko Epson Corporation Superconducting bearing
US5325002A (en) 1992-02-18 1994-06-28 Electric Power Research Institute Trapped-field, superconducting, induction-synchronous motor/generator having improved startup torque
JP3195636B2 (en) 1992-03-19 2001-08-06 ガンブロ株式会社 Dispensing method of undiluted solution for hemodialysate and soft bag for dispensing undiluted solution for hemodialysate
US5385546A (en) 1992-06-24 1995-01-31 Science Incorporated Mixing and delivering system
DE69310915T2 (en) 1992-07-20 1997-11-06 Oxoid Ltd MAGNETIC STIRRING SYSTEM
US5399074A (en) 1992-09-04 1995-03-21 Kyocera Corporation Motor driven sealless blood pump
US5411378A (en) 1992-09-08 1995-05-02 Sipin; Anatole J. Orbiting fluid pump
US5405251A (en) 1992-09-11 1995-04-11 Sipin; Anatole J. Oscillating centrifugal pump
US5240322A (en) 1992-09-23 1993-08-31 Habley Medical Technology Corporation Pharmaceutical mixing container with rotatable vaned internal magnetic mixing element
US5352036A (en) 1992-09-23 1994-10-04 Habley Medical Technology Corporation Method for mixing and dispensing a liquid pharmaceutical with a miscible component
US5240323A (en) 1992-09-23 1993-08-31 Habley Medical Technology Corporation Pharmaceutical mixing container with extendable agitator bellows
DE4232936C2 (en) 1992-10-01 1996-03-28 Mavag Verfahrenstech Ag Impeller for stirring sterile liquids
DE4232934C2 (en) 1992-10-01 1996-03-28 Mavag Verfahrenstech Ag Double impeller for stirring sterile liquids
US5385564A (en) 1992-10-05 1995-01-31 Fresenius Usa, Inc. System for preparation and use of dialysis solution
JPH06200942A (en) 1992-10-13 1994-07-19 Cornell Res Found Inc Superconductive bearing assembly
FR2696949B3 (en) 1992-10-16 1994-12-16 Michel Loiselet Mixing device mixer kneader cutter mixer on pot with scraper system.
US5470152A (en) 1993-02-23 1995-11-28 General Signal Corporation Radially mounted magnetic coupling
US5368390A (en) 1993-03-01 1994-11-29 General Signal Corporation Mixer systems
US5722303A (en) 1993-03-03 1998-03-03 University Of Chicago Mixed-mu superconducting bearings
US5540116A (en) 1993-03-03 1996-07-30 University Of Chicago Low-loss, high-speed, high-TC superconducting bearings
US5861574A (en) 1993-04-14 1999-01-19 Fujitsu Limited Apparatus for mounting a superconducting element
JPH0712053A (en) * 1993-06-23 1995-01-17 Ntn Corp Superconducting pump
US5402648A (en) 1993-07-01 1995-04-04 Apd Cryogenics Inc. Sealed dewar with separate circulation loop for external cooling at constant pressure
US5581135A (en) 1993-09-15 1996-12-03 Imra Material R & D Co., Ltd. Superconducting motor
US5527159A (en) 1993-11-10 1996-06-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Rotary blood pump
US5957672A (en) 1993-11-10 1999-09-28 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Blood pump bearing system
FR2713405B1 (en) 1993-12-03 1996-01-19 Gec Alsthom Electromec Current supply module for supplying a superconductive electric charge at low critical temperature.
JP3315224B2 (en) 1993-12-09 2002-08-19 千寿製薬株式会社 Micro flow pump
JP3961032B2 (en) 1993-12-13 2007-08-15 シーメンス アクチエンゲゼルシヤフト Magnetic bearing device for rotor shaft
EP0695027A4 (en) 1994-01-25 1997-10-08 Kanagawa Kagaku Gijutsu Akad Magnetic levitation device
US5451524A (en) 1994-02-01 1995-09-19 The Gillette Company In vitro chamber for human organ tissue samples
US6024542A (en) 1994-02-14 2000-02-15 Phillips Engineering Co. Piston pump and method of reducing vapor lock
DE4406217C2 (en) 1994-02-25 1997-04-17 Janke & Kunkel Kg Magnetic stirrer with a housing
JPH07256503A (en) 1994-03-17 1995-10-09 Seiko Seiki Co Ltd Spindle apparatus
JPH07269488A (en) * 1994-03-31 1995-10-17 Ntn Corp Superconducting pump
DE4413463C2 (en) 1994-04-18 1999-12-30 Helmut Herz Magnetic stirring device
DE4430853A1 (en) 1994-08-31 1996-03-07 Jostra Medizintechnik Centrifugal blood pump
US5567672A (en) 1994-10-11 1996-10-22 Queen's University At Kingston Method and apparatus for damping mechanical vibration with a high Tc superconductor
US5831362A (en) 1994-11-01 1998-11-03 The University Of Houston Magnet-superconductor flywheel and levitation systems
EP0865680A1 (en) 1994-12-12 1998-09-23 Jorge De Armas Electromagnetic-coupled/levitated apparatus and method for rotating equipment
US5527295A (en) * 1995-02-22 1996-06-18 Wing; Michael L. Gravitational, magnetic, floating ball valve
US5763971A (en) 1995-03-16 1998-06-09 Koyo Seiko Co., Ltd. Superconducting bearing device
DE59607047D1 (en) 1995-04-03 2001-07-12 Levitronix Llc Waltham ROTATION MACHINE WITH ELECTROMAGNETIC ROTARY DRIVE
US5725357A (en) 1995-04-03 1998-03-10 Ntn Corporation Magnetically suspended type pump
US5478149A (en) 1995-04-24 1995-12-26 Magnetic Mixers, Inc. Magnetic mixer
US5747426A (en) 1995-06-07 1998-05-05 Commonwealth Research Corporation High performance magnetic bearing systems using high temperature superconductors
US5575630A (en) 1995-08-08 1996-11-19 Kyocera Corporation Blood pump having magnetic attraction
US6129660A (en) 1995-08-23 2000-10-10 Ntn Corporation Method of controlling blood pump
JP3784116B2 (en) 1995-11-30 2006-06-07 博正 樋笠 Superconducting application device design method and superconducting application device manufactured by this design method
US5947703A (en) 1996-01-31 1999-09-07 Ntn Corporation Centrifugal blood pump assembly
US5676462A (en) 1996-04-16 1997-10-14 Eastman Kodak Company Suspended magnetic impeller/baffle apparatus for liquid
US5611679A (en) 1996-04-22 1997-03-18 Eastman Kodak Company Corrosion-resistant pump
US6074180A (en) 1996-05-03 2000-06-13 Medquest Products, Inc. Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method
JP3776162B2 (en) 1996-05-10 2006-05-17 Ｎｔｎ株式会社 Magnetic levitation blood pump
JPH09313600A (en) 1996-05-28 1997-12-09 Terumo Corp Centrifugal liquid pump
US6015272A (en) 1996-06-26 2000-01-18 University Of Pittsburgh Magnetically suspended miniature fluid pump and method of designing the same
JP3717014B2 (en) 1996-08-06 2005-11-16 富士写真フイルム株式会社 Stirrer
US5789837A (en) 1996-08-14 1998-08-04 Korea Advanced Institute Of Science & Technology High-temperature superconducting magnetic bearing
US5703424A (en) 1996-09-16 1997-12-30 Mechanical Technology Inc. Bias current control circuit
US6071093A (en) 1996-10-18 2000-06-06 Abiomed, Inc. Bearingless blood pump and electronic drive system
DE19643844C1 (en) 1996-10-30 1998-05-07 Karlsruhe Forschzent Superconducting magnetic bearing of modular construction
JPH10144517A (en) * 1996-11-11 1998-05-29 Toshiba Corp Energy storage device
US5758965A (en) 1996-12-05 1998-06-02 General Signal Corporation Mixer system
US5779359A (en) 1996-12-05 1998-07-14 General Signal Corporation Mixer having exposed clean-in-place bearing assemblies
JP4005654B2 (en) 1996-12-26 2007-11-07 Ｎｔｎ株式会社 Magnetic levitation centrifugal pump device
JP3705461B2 (en) 1996-12-26 2005-10-12 富士写真フイルム株式会社 Method for producing silver halide emulsion and silver halide photographic emulsion
SE508445C2 (en) 1997-01-28 1998-10-05 Magnetal Ab High speed vacuum pump
SE508442C2 (en) 1997-01-28 1998-10-05 Magnetal Ab Electrodynamic magnetic bearing
WO1998033538A1 (en) 1997-02-04 1998-08-06 Novo Nordisk A/S A device for the administration of a liquid medicament suspension
US5794802A (en) 1997-03-04 1998-08-18 Caola; Joseph Container for separation, storage, and mixing of ingredients
US5848532A (en) 1997-04-23 1998-12-15 American Superconductor Corporation Cooling system for superconducting magnet
US5941867A (en) 1997-07-15 1999-08-24 Kao; Ti Formulation of pharmaceutical solutions in free fall
JPH11101235A (en) 1997-07-30 1999-04-13 Nippon Seiko Kk Magnetic bearing
FR2788995B1 (en) 1999-01-28 2001-04-06 Mixel MAGNETICALLY DRIVEN AGITATOR AND METHOD FOR ADJUSTING THE LIMIT TORQUE FOR THE TRANSMISSION OF EFFORT OF SUCH AN AGITATOR
JPH11288809A (en) 1998-03-31 1999-10-19 Toshiba Corp Superconducting magnet
FR2779361B1 (en) 1998-06-05 2000-07-28 Mixel MAGNETICALLY DRIVEN AGITATOR
JP4070326B2 (en) * 1998-10-20 2008-04-02 慎一 秋山 Non-contact stirring device
JP2000145774A (en) 1998-11-17 2000-05-26 Koyo Seiko Co Ltd Control-type magnetic bearing device
US6095677A (en) 1999-01-12 2000-08-01 Island Oasis Frozen Cocktail Co., Inc. Magnetic drive blender
US7086778B2 (en) * 2000-10-09 2006-08-08 Levtech, Inc. System using a levitating, rotating pumping or mixing element and related methods
US6477749B1 (en) * 2000-11-09 2002-11-12 Lodestone Fasteners, Llc Magnetic tack
EP1534412B1 (en) * 2001-10-03 2010-08-18 Levtech Inc. Mixing vessel having a receiver for a fluid-agitating element
US6908223B2 (en) * 2002-04-12 2005-06-21 Hynetics Llc Systems for mixing liquid solutions and methods of manufacture
US7168459B2 (en) * 2002-04-12 2007-01-30 Hynetics Llc Feed bags and methods of use
US20030226857A1 (en) * 2002-04-12 2003-12-11 Hyclone Laboratories, Inc. Systems for forming sterile fluid connections and methods of use
US6923567B2 (en) * 2002-04-12 2005-08-02 Hynetics Llc Mixing tank assembly
US7153021B2 (en) * 2003-03-28 2006-12-26 Hyclone Laboratories, Inc. Container systems for mixing fluids with a magnetic stir bar

Also Published As

Publication number Publication date
DE60141472D1 (en) 2010-04-15
EP1332299B1 (en) 2010-03-03
WO2002031372A1 (en) 2002-04-18
IL155267A0 (en) 2003-11-23
US7267479B2 (en) 2007-09-11
US20040218468A1 (en) 2004-11-04
CA2425232C (en) 2011-03-22
US20050201201A1 (en) 2005-09-15
JP4934776B2 (en) 2012-05-16
EP1332299A1 (en) 2003-08-06
US6758593B1 (en) 2004-07-06
US6899454B2 (en) 2005-05-31
IL155267A (en) 2007-05-15
JP2004511902A (en) 2004-04-15
ATE459814T1 (en) 2010-03-15
AU2001229412A1 (en) 2002-04-22

Similar Documents

Publication Publication Date Title
CA2425232A1 (en) Pumping or mixing system using a levitating bearing
US7086778B2 (en) System using a levitating, rotating pumping or mixing element and related methods
JP4956700B2 (en) Containers for use in mixing systems that mix fluids
US6837613B2 (en) Sterile fluid pumping or mixing system and related method
US20010039369A1 (en) Blood pump system
US4702090A (en) Magnetic refrigeration apparatus with conductive heat transfer
US6416215B1 (en) Pumping or mixing system using a levitating magnetic element
CA2529059A1 (en) Apparatus and method for mixing a fluid in a vessel using a magnetically-coupled mixing element
JP2006122785A (en) Non-contact stirring machine
JP4930906B2 (en) Magnetic levitation rotation device
Zhang et al. Reaction wheel with HTS bearings for mini-satellite attitude control
JP4581533B2 (en) Non-contact stirrer
KR101298850B1 (en) Device and method for cooling a superconducting machine
JP4304448B2 (en) Method for installing rotor blades in non-contact stirrer and non-contact stirrer using the method
JPH11355980A (en) Flywheel power storage equipment
WO2008086407A2 (en) Apparatus for transferring fluid under cryogenic conditions
Ruppert et al. Cryogenic valve actuator
JPH11178313A (en) Magnetic permanent power apparatus

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170112