US3640510A - Vacuum stirring device for dental materials - Google Patents

Vacuum stirring device for dental materials Download PDF

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Publication number
US3640510A
US3640510A US861326A US3640510DA US3640510A US 3640510 A US3640510 A US 3640510A US 861326 A US861326 A US 861326A US 3640510D A US3640510D A US 3640510DA US 3640510 A US3640510 A US 3640510A
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United States
Prior art keywords
mixing
stirring device
magnetic clutch
container
vacuum pump
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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.)
Expired - Lifetime
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US861326A
Inventor
Hans Lea
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Evonik Operations GmbH
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Degussa GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00Other mixers; Mixing plants; Combinations of mixers
    • B01F33/70Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00Impression cups, i.e. impression trays; Impression methods
    • A61C9/0026Syringes or guns for injecting impression material; Mixing impression material for immediate use
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/805Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/88Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with a separate receptacle-stirrer unit that is adapted to be coupled to a drive mechanism

Definitions

  • ABSTRACT A mixing machine for materials used in dentistry where the elimination of entrained air, or air bubbles, is necessary in order to assure perfect results upon setting of the material, the machine including a closed mixing container, a rotary stirring device, and a vacuum pump for the rotary stirring device being driven by a motor by means of a magnetic clutch. A time switch is provided so that after a predetermined time of mixing the stirring device is disconnected, the vacuum pump, however, continuing to operate.
  • This invention relates to an apparatus for stirring materials in a vacuum to degas .the materials and especially for degassing dental materials.
  • the most important feature in the preparation of the materials is the mixing of the material mass in a vacuum.
  • this has been accomplished by using a mixing beaker which contains a stirring and mixing mechanism and whose interior is continually kept free of air by drawing off the air in order to prevent the entraining of air into the mass of material which would greatly impair the quality of the model or mold for which the material is to be used and under the reduced pressure any air bubbles which expand can be eliminated.
  • the object of this invention is to produce an apparatus by means of which the stirring and mixing of the mass while being degassed is simplified.
  • the apparatus is simplified by inserting a magnetic clutch between the driving motor and a mechanical coupling joined to the stirring mechanism, and using a time clock to actuate the effective clutching time of the magnetic clutch.
  • This makes it possible to set the exact time for the mixing and stirring without needing an operator to watch the mixing time.
  • This makes it also possible to continue the removal of air from the beaker when the mechanical coupling is not connected as, for example, in order to seal the cover or closure for the mixing beaker before the mixing or stirring is started.
  • This has the further advantage that the drive for the stirring or mixing mechanism can be incorporated in the stationary mechanical coupling of the drive shaft.
  • Motor 1 drives gearing 2 which is used to rotate a mixing or stirring paddle 3 in a mixing beaker or container 4.
  • Stirrer 3 can be a paddle which is mounted on a spindle 5 that extends through the cover or closure 50 for the container 4.
  • Spindle 5 has a projection engaging a magnetic clutch 6 by means of which the paddle is rotated.
  • Clutch 6 is controlled by a time switch 7 so that when the clutch is engaged it will rotate paddle 3 for the time set by switch 7. When this time is up, the paddle 3 stops rotating by disengaging the clutch and the still closed container with its contents may be disconnected from clutch 6 and after opening the container, the now mixed contents can be used.
  • Motor 1 also drives suction pump 8 that draws air through tube 9 which extends through the closure 5a into container 4.
  • suction or vacuum pump operates whenever motor 1 is running so that the contents in container 4 may be placed under vacuum immediately after being put in the container and before mixing starts, and will be kept under vacuum after switch 7 has unclutched magnetic clutch 6.
  • Switch 10 is used to start and stop motor 1.
  • a mixing machine for mixing dental materials in a vacuum including a motor, a vacuum pump and a mixing gear driven by said motor, a mixing container, a closure for said mixing container operatively connected to said vacuum pump for evacuating said mixing container, a mixing paddle mounted on a shaft extending through said closure, a mechanical coupling, a magnetic clutch driven by said mixing gears, and a time switch for determining the duration of time of engagement of said magnetic clutch, said magnetic clutch being operatively interposed between said mixing gear and said mechanical coupling to which said mixing shaft is removably connected.

Abstract

A mixing machine for materials used in dentistry where the elimination of entrained air, or air bubbles, is necessary in order to assure perfect results upon setting of the material, the machine including a closed mixing container, a rotary stirring device, and a vacuum pump for the rotary stirring device being driven by a motor by means of a magnetic clutch. A time switch is provided so that after a predetermined time of mixing the stirring device is disconnected, the vacuum pump, however, continuing to operate.

Description

United States Patent Lea [ Feb.8, 1972 [54] VACUUM STIRRING DEVICE FOR DENTAL MATERIALS [72] Inventor: Hans Lea, Frankfurt am Main, Germany [73] Assignee: Deutsche Gold-Und Silber-Scheideanstalt Vormals Roessler, Frankfurt am Main, Germany 22 Filed: Sept. 26, 1969 21 App1.No.: 861,326
[52] US. CL ..259/108, 192/84 R, 259/ 1 22 [51] Int. Cl. 801i 7/18 [58] Field of Search ..259/8, D16. 20, DIG. 42, 108,
259/107, 122, 85, DIG. 46; 192/84 [56] References Cited UNITED STATES PATENTS 941,075 11/1909 Jackson .....259/108 X 1,116,096 11/1914 Miller ..259/85 1,504,832 8/1924 Pouget "259/ 85 Hasegawa et a1. ..::...,.68/l 33 X Primary Examiner-Walter A. Scheel Assistant ExaminerAlan l. Cantor Attorney-Francis D. Stephens and Hugo Huettig, Jr.
[ ABSTRACT A mixing machine for materials used in dentistry where the elimination of entrained air, or air bubbles, is necessary in order to assure perfect results upon setting of the material, the machine including a closed mixing container, a rotary stirring device, and a vacuum pump for the rotary stirring device being driven by a motor by means of a magnetic clutch. A time switch is provided so that after a predetermined time of mixing the stirring device is disconnected, the vacuum pump, however, continuing to operate.
1 Claims, 1 Drawing Figure PAIENTEDFEB 8 I972 INVENTOR 44am Lea VACUUM STIRRING DEVICE FOR DENTAL MATERIALS This invention relates to an apparatus for stirring materials in a vacuum to degas .the materials and especially for degassing dental materials.
When dental material masses used for making models of teeth are degassed while being stirred under vacuum, a combination apparatus is often used in which both the stirring and degassing is accomplished in the same apparatus.
The most important feature in the preparation of the materials is the mixing of the material mass in a vacuum. Heretofore, this has been accomplished by using a mixing beaker which contains a stirring and mixing mechanism and whose interior is continually kept free of air by drawing off the air in order to prevent the entraining of air into the mass of material which would greatly impair the quality of the model or mold for which the material is to be used and under the reduced pressure any air bubbles which expand can be eliminated.
The object of this invention is to produce an apparatus by means of which the stirring and mixing of the mass while being degassed is simplified.
In this invention, the apparatus is simplified by inserting a magnetic clutch between the driving motor and a mechanical coupling joined to the stirring mechanism, and using a time clock to actuate the effective clutching time of the magnetic clutch. This makes it possible to set the exact time for the mixing and stirring without needing an operator to watch the mixing time. This makes it also possible to continue the removal of air from the beaker when the mechanical coupling is not connected as, for example, in order to seal the cover or closure for the mixing beaker before the mixing or stirring is started. This has the further advantage that the drive for the stirring or mixing mechanism can be incorporated in the stationary mechanical coupling of the drive shaft.
The means by which the objects of this invention are obtained are described more fully with reference to the accompanying schematic drawing which is a front view, partly in section, of the apparatus of this invention.
Motor 1 drives gearing 2 which is used to rotate a mixing or stirring paddle 3 in a mixing beaker or container 4. Stirrer 3 can be a paddle which is mounted on a spindle 5 that extends through the cover or closure 50 for the container 4. Spindle 5 has a projection engaging a magnetic clutch 6 by means of which the paddle is rotated.
Clutch 6 is controlled by a time switch 7 so that when the clutch is engaged it will rotate paddle 3 for the time set by switch 7. When this time is up, the paddle 3 stops rotating by disengaging the clutch and the still closed container with its contents may be disconnected from clutch 6 and after opening the container, the now mixed contents can be used.
Motor 1 also drives suction pump 8 that draws air through tube 9 which extends through the closure 5a into container 4. This suction or vacuum pump operates whenever motor 1 is running so that the contents in container 4 may be placed under vacuum immediately after being put in the container and before mixing starts, and will be kept under vacuum after switch 7 has unclutched magnetic clutch 6. Switch 10 is used to start and stop motor 1.
Having now described the means by which the objects of this invention are obtained,
I claim:
1. A mixing machine for mixing dental materials in a vacuum including a motor, a vacuum pump and a mixing gear driven by said motor, a mixing container, a closure for said mixing container operatively connected to said vacuum pump for evacuating said mixing container, a mixing paddle mounted on a shaft extending through said closure, a mechanical coupling, a magnetic clutch driven by said mixing gears, and a time switch for determining the duration of time of engagement of said magnetic clutch, said magnetic clutch being operatively interposed between said mixing gear and said mechanical coupling to which said mixing shaft is removably connected.

Claims (1)

1. A mixing machine for mixing dental materials in a vacuum including a motor, a vacuum pump and a mixing gear driven by said motor, a mixing container, a closure for said mixing container operatively connected to said vacuum pump for evacuating said mixing container, a mixing paddle mounted on a shaft extending through said closure, a mechanical coupling, a magnetic clutch driven by said mixing gears, and a time switch for determining the duration of time of engagement of said magnetic clutch, said magnetic clutch being operatively interposed between said mixing gear and said mechanical coupling to which said mixing shaft is removably connected.
US861326A 1969-09-26 1969-09-26 Vacuum stirring device for dental materials Expired - Lifetime US3640510A (en)

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Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951387A (en) * 1975-04-25 1976-04-20 Grace Development Company Cartridge for storing and mixing at least two independent ingredients
US4457629A (en) * 1983-08-26 1984-07-03 Soonchin Liaw Gluten maker for the home
FR2543851A1 (en) * 1983-04-11 1984-10-12 Squibb & Sons Inc STERILIZABLE HAMMER CRUSHER
US4653568A (en) * 1983-03-17 1987-03-31 Fabraze, Inc. Foundry process and apparatus, including mixing investment composition under vacuum
FR2591912A1 (en) * 1985-12-23 1987-06-26 Guiet Jacques PROCESS FOR PREPARING AN ALGINATE OR PLASTER PULP AND DEVICE FOR IMPLEMENTING IT
US4721390A (en) * 1984-10-19 1988-01-26 Mit Ab Method for producing bone cement for fixing prostheses and device for carrying out said method
US4787751A (en) * 1986-06-20 1988-11-29 Marinus Bakels Bone cement mixing device
DE3734526A1 (en) * 1987-10-13 1989-05-03 Gmt Medizinische Technik Gmbh Method and appliance for mixing substances containing gaseous fractions
US4854716A (en) * 1987-05-14 1989-08-08 Sulzer Brothers Ltd. Device for processing bone cement
US4871261A (en) * 1988-09-29 1989-10-03 Minnesota Mining And Manufacturing Company Vacuum mixing apparatus for dental materials
US4889432A (en) * 1989-02-07 1989-12-26 Roosevelt Patterson Dental mixer apparatus
FR2636834A1 (en) * 1988-09-26 1990-03-30 Levy Harry Stirrer for slips for dental ceramics
US4973168A (en) * 1989-01-13 1990-11-27 Chan Kwan Ho Vacuum mixing/bone cement cartridge and kit
US5257862A (en) * 1993-04-26 1993-11-02 Carl Gardner Mixer-washer apparatus
US5328262A (en) * 1992-02-07 1994-07-12 Mit Ab Method for producing reduced porosity bone cement
US5348391A (en) * 1993-11-16 1994-09-20 Murray William M Manual bone cement mixing method
WO1995001832A1 (en) * 1993-07-06 1995-01-19 Earle Michael L Automated bone cement mixing apparatus
US5462356A (en) * 1994-06-01 1995-10-31 Murray; William M. Bone and dental cement method and preform
US5472445A (en) * 1993-09-20 1995-12-05 Zimmer, Inc. Device for minimizing porosity in bone cement utilizing centrifugation and vacuum
US5494349A (en) * 1991-12-06 1996-02-27 Summit Medical Ltd. Bone cement mixing device
US5505538A (en) * 1993-07-06 1996-04-09 Earle; Michael L. Automated bone cement mixing apparatus
US5549381A (en) * 1995-05-19 1996-08-27 Hays; Greta J. Method and apparatus for mixing polymeric bone cement components
US5797680A (en) * 1996-09-05 1998-08-25 Murray; William M. Manual bone cement mixing system with vacuum pump start-stop device
US6042262A (en) * 1997-07-29 2000-03-28 Stryker Technologies Corportion Apparatus for storing, mixing, and dispensing two-component bone cement
US6120174A (en) * 1999-01-14 2000-09-19 Bristol-Myers Squibb Apparatus and method for mixing and dispensing bone cement
US6254268B1 (en) 1999-07-16 2001-07-03 Depuy Orthopaedics, Inc. Bone cement mixing apparatus
US20030174576A1 (en) * 2002-03-14 2003-09-18 Stryker Instruments Mixing assembly for mixing bone cement
US20030185093A1 (en) * 2002-03-29 2003-10-02 Vendrely Timothy G. Bone cement mixing apparatus and method
US20060187747A1 (en) * 2000-10-25 2006-08-24 Kyphon Inc. Methods for mixing and transferring flowable materials
WO2006103410A1 (en) * 2005-03-29 2006-10-05 The Queen's University Of Belfast Apparatus and method for polymerisation surgical cement
US20140010041A1 (en) * 2012-07-05 2014-01-09 Inoue Mfg., Inc. Planetary mixer
US20150138910A1 (en) * 2013-11-20 2015-05-21 Jong-Dae Cha Dental vacuum mixer
WO2016125036A1 (en) 2015-02-04 2016-08-11 Rock Dental Ag Mixing capsule for dental material, and method for producing dental material
US9924837B1 (en) * 2017-02-09 2018-03-27 R. Joseph Trojan Vacuum blender
US10055347B1 (en) * 2017-02-09 2018-08-21 R. Joseph Trojan Vacuum blender
US20180326381A1 (en) * 2017-05-11 2018-11-15 Gary W. Bradley Systems and methods for providing a self-contained, vacuum-producing mixing apparatus
EA038629B1 (en) * 2017-09-13 2021-09-24 Р. Джозеф Троджен Vacuum blender
RU220238U1 (en) * 2023-05-18 2023-09-04 Михаил Георгиевич Медведев Can vacuum mixer

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US941075A (en) * 1909-02-17 1909-11-23 David B Jackson Mixing apparatus.
US1116096A (en) * 1913-07-19 1914-11-03 Franklin P Miller Ice-cream-making machine.
US1504832A (en) * 1919-11-22 1924-08-12 Pouget Marcellin Culinary apparatus
US2724087A (en) * 1952-04-02 1955-11-15 Hand Walter Testing apparatus
US2777177A (en) * 1951-11-09 1957-01-15 Edmund A Steinbock Investment mixer
US2973187A (en) * 1958-08-11 1961-02-28 Bruno F Wehmer Vacuum spatulator
US3131912A (en) * 1954-02-01 1964-05-05 Edmund A Steinbock Investment mixer
US3198502A (en) * 1961-01-10 1965-08-03 Thompson Donald Amalgam mixer and separator
US3306082A (en) * 1964-12-14 1967-02-28 Hitachi Ltd Washing machines

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US941075A (en) * 1909-02-17 1909-11-23 David B Jackson Mixing apparatus.
US1116096A (en) * 1913-07-19 1914-11-03 Franklin P Miller Ice-cream-making machine.
US1504832A (en) * 1919-11-22 1924-08-12 Pouget Marcellin Culinary apparatus
US2777177A (en) * 1951-11-09 1957-01-15 Edmund A Steinbock Investment mixer
US2724087A (en) * 1952-04-02 1955-11-15 Hand Walter Testing apparatus
US3131912A (en) * 1954-02-01 1964-05-05 Edmund A Steinbock Investment mixer
US2973187A (en) * 1958-08-11 1961-02-28 Bruno F Wehmer Vacuum spatulator
US3198502A (en) * 1961-01-10 1965-08-03 Thompson Donald Amalgam mixer and separator
US3306082A (en) * 1964-12-14 1967-02-28 Hitachi Ltd Washing machines

Cited By (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951387A (en) * 1975-04-25 1976-04-20 Grace Development Company Cartridge for storing and mixing at least two independent ingredients
US4653568A (en) * 1983-03-17 1987-03-31 Fabraze, Inc. Foundry process and apparatus, including mixing investment composition under vacuum
FR2543851A1 (en) * 1983-04-11 1984-10-12 Squibb & Sons Inc STERILIZABLE HAMMER CRUSHER
US4457629A (en) * 1983-08-26 1984-07-03 Soonchin Liaw Gluten maker for the home
US4721390A (en) * 1984-10-19 1988-01-26 Mit Ab Method for producing bone cement for fixing prostheses and device for carrying out said method
FR2591912A1 (en) * 1985-12-23 1987-06-26 Guiet Jacques PROCESS FOR PREPARING AN ALGINATE OR PLASTER PULP AND DEVICE FOR IMPLEMENTING IT
EP0230832A1 (en) * 1985-12-23 1987-08-05 Jacques Guiet Method for making a paste based on alginate, plaster or similar substances, and device for carrying out said method
US5121990A (en) * 1985-12-23 1992-06-16 Jacques Guiet Device for the preparation of a paste
US4787751A (en) * 1986-06-20 1988-11-29 Marinus Bakels Bone cement mixing device
US4854716A (en) * 1987-05-14 1989-08-08 Sulzer Brothers Ltd. Device for processing bone cement
DE3734526A1 (en) * 1987-10-13 1989-05-03 Gmt Medizinische Technik Gmbh Method and appliance for mixing substances containing gaseous fractions
FR2636834A1 (en) * 1988-09-26 1990-03-30 Levy Harry Stirrer for slips for dental ceramics
US4871261A (en) * 1988-09-29 1989-10-03 Minnesota Mining And Manufacturing Company Vacuum mixing apparatus for dental materials
US4973168A (en) * 1989-01-13 1990-11-27 Chan Kwan Ho Vacuum mixing/bone cement cartridge and kit
USRE35276E (en) * 1989-01-13 1996-06-18 Chan; Kwan-Ho Vacuum mixing/bone cement cartridge and kit
US4889432A (en) * 1989-02-07 1989-12-26 Roosevelt Patterson Dental mixer apparatus
US5494349A (en) * 1991-12-06 1996-02-27 Summit Medical Ltd. Bone cement mixing device
US5328262A (en) * 1992-02-07 1994-07-12 Mit Ab Method for producing reduced porosity bone cement
US5501520A (en) * 1992-02-07 1996-03-26 Mit Ab Device for producing reduced porosity bone cement
US5257862A (en) * 1993-04-26 1993-11-02 Carl Gardner Mixer-washer apparatus
EP0725673A4 (en) * 1993-07-06 1997-02-26 Michael L Earle Automated bone cement mixing apparatus
EP0725673A1 (en) * 1993-07-06 1996-08-14 Michael L. Earle Automated bone cement mixing apparatus
US5975751A (en) * 1993-07-06 1999-11-02 Earle; Michael L. Automated bone cement mixing apparatus
WO1995001832A1 (en) * 1993-07-06 1995-01-19 Earle Michael L Automated bone cement mixing apparatus
US5505538A (en) * 1993-07-06 1996-04-09 Earle; Michael L. Automated bone cement mixing apparatus
US5571282A (en) * 1993-07-06 1996-11-05 Earle; Michael L. Automated bone cement mixing apparatus
US5531519A (en) * 1993-07-06 1996-07-02 Earle; Michael L. Automated bone cement mixing apparatus
US5472445A (en) * 1993-09-20 1995-12-05 Zimmer, Inc. Device for minimizing porosity in bone cement utilizing centrifugation and vacuum
US5348391A (en) * 1993-11-16 1994-09-20 Murray William M Manual bone cement mixing method
US5368386A (en) * 1993-11-16 1994-11-29 Murray; William M. Manual bone cement mixing device
US5395167A (en) * 1993-11-16 1995-03-07 Murray; William M. Manual bone cement mixing system
US5462356A (en) * 1994-06-01 1995-10-31 Murray; William M. Bone and dental cement method and preform
US5549381A (en) * 1995-05-19 1996-08-27 Hays; Greta J. Method and apparatus for mixing polymeric bone cement components
US5797680A (en) * 1996-09-05 1998-08-25 Murray; William M. Manual bone cement mixing system with vacuum pump start-stop device
US6042262A (en) * 1997-07-29 2000-03-28 Stryker Technologies Corportion Apparatus for storing, mixing, and dispensing two-component bone cement
US6120174A (en) * 1999-01-14 2000-09-19 Bristol-Myers Squibb Apparatus and method for mixing and dispensing bone cement
US6254268B1 (en) 1999-07-16 2001-07-03 Depuy Orthopaedics, Inc. Bone cement mixing apparatus
US7278778B2 (en) 2000-10-25 2007-10-09 Kyphon Inc. System for mixing and transferring flowable materials
US20070121422A1 (en) * 2000-10-25 2007-05-31 Kyphon Inc. Methods for mixing and transferring flowable materials
US7160020B2 (en) 2000-10-25 2007-01-09 Kyphon Inc. Methods for mixing and transferring flowable materials
US20060187747A1 (en) * 2000-10-25 2006-08-24 Kyphon Inc. Methods for mixing and transferring flowable materials
US20060087912A1 (en) * 2002-03-14 2006-04-27 Stryker Instruments Method of mixing bone cement with two mixing paddles
US6994465B2 (en) 2002-03-14 2006-02-07 Stryker Instruments Mixing assembly for mixing bone cement
US20030174576A1 (en) * 2002-03-14 2003-09-18 Stryker Instruments Mixing assembly for mixing bone cement
US7645066B2 (en) 2002-03-14 2010-01-12 Stryker Corporation Method of mixing bone cement with two mixing paddles
US20100124143A1 (en) * 2002-03-14 2010-05-20 Christopher Matthew Tague Bone cement mixer with two paddles, the paddles arranged to limit longitudinal movement
US7967499B2 (en) 2002-03-14 2011-06-28 Stryker Corporation Bone cement mixer with two paddles, the paddles arranged to limit longitudinal movement
US6921192B2 (en) 2002-03-29 2005-07-26 Depuy Orthopaedics, Inc. Bone cement mixing apparatus
US20030185093A1 (en) * 2002-03-29 2003-10-02 Vendrely Timothy G. Bone cement mixing apparatus and method
WO2006103410A1 (en) * 2005-03-29 2006-10-05 The Queen's University Of Belfast Apparatus and method for polymerisation surgical cement
US9358510B2 (en) * 2012-07-05 2016-06-07 Inoue Mfg., Inc. Planetary mixer
US20140010041A1 (en) * 2012-07-05 2014-01-09 Inoue Mfg., Inc. Planetary mixer
US20150138910A1 (en) * 2013-11-20 2015-05-21 Jong-Dae Cha Dental vacuum mixer
WO2016125036A1 (en) 2015-02-04 2016-08-11 Rock Dental Ag Mixing capsule for dental material, and method for producing dental material
US10874482B2 (en) 2015-02-04 2020-12-29 Rock Dental Ag Mixing capsule for dental material, and method for producing dental material
US9924837B1 (en) * 2017-02-09 2018-03-27 R. Joseph Trojan Vacuum blender
WO2018148418A1 (en) * 2017-02-09 2018-08-16 Trojan R Joseph Vacuum blender
US10055347B1 (en) * 2017-02-09 2018-08-21 R. Joseph Trojan Vacuum blender
AU2018219282B2 (en) * 2017-02-09 2020-05-21 R. Joseph Trojan Vacuum blender
US20180326381A1 (en) * 2017-05-11 2018-11-15 Gary W. Bradley Systems and methods for providing a self-contained, vacuum-producing mixing apparatus
EA038629B1 (en) * 2017-09-13 2021-09-24 Р. Джозеф Троджен Vacuum blender
RU220238U1 (en) * 2023-05-18 2023-09-04 Михаил Георгиевич Медведев Can vacuum mixer

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