|Publication number||US2110022 A|
|Publication date||Mar 1, 1938|
|Filing date||Jul 15, 1935|
|Priority date||Jul 15, 1935|
|Publication number||US 2110022 A, US 2110022A, US-A-2110022, US2110022 A, US2110022A|
|Inventors||Kliesrath Victor W|
|Original Assignee||Internat Engineering Corp|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (115), Classifications (12)|
|External Links: USPTO, USPTO Assignment, Espacenet|
March 1, 1938. v KUESRATH 2,110,022
- COVER Filed July 15, 1955' 2 Sheets-Sheet 1 IN VENTOR.
V/cToR W. KuEsRnTH March 1, 1938. v w KLlESRATH 2,110,022
COVER Filed July 15, 1935 2 Sheets-Sheet 2 fkzvwaa 11.11. I
4 I Fig'E INVENTOR.
FIE. E] VICTOR W KLIESRFITH ATTORNEY.
named Mar. 1, 193a PATENT OFFICE COVER Victor W. Kliesrath, South Bend, Ind.,
assignor to International Engineering Corporation, Chicago, 111., acorporation of Illinois Application July 15, 1935, Serial No. 31,540 3 Claims. (01. 5-334) This invention relates to covers and more particularly to bed covers in which a heat transfer medium is circulated. Y
It is desirable to be able to control the tem- S perature of a person in bed in order to provide comfortable conditions for sleeping during either extremely hot or extremely cold weather or in the treatment of diseases, for example in hospitals. If the temperature of the whole room is controlled a large volume of air must be conditioned requiring large expensive machinery and leading to high operating costs. It is accordingly one of the objects of the invention to provide a cover by which the temperature of a person in bed may be main- 3 tained at the desired value without requiring con trolling the temperature of a large space.
Another object is to provide a cover which is cooled to cool a person using it.
Another object is to provide a cover which is i connected to a source of cooling medium to circulate cooling medium through the cover.
According to one desirable arrangement, the above and other objects are produced by a cover including a layer of heat insulating material and i a layer of heat conducting material arranged with means therebetween to circulate a heat transfer medium. The heat transfer medium may be a warm fluid or a cooling medium such as a refrigerant supplied by the usual compressor or may be air which is cooled by contact with a cooling coil. In case air is used, it maybe circulated through a closed circuit or it may be discharged from the cover to pass over the body of the person using the cover.
Other objects, advantages and novel features will be apparent from the following description when taken in connection with the accompanying drawings, in which:.
Figure l is a perspective view with parts broken away of a cover embodying the invention;
Figure 2 is a view similar to Figure 1 of a modifled form of cover;
Figure 3 is a transverse section of the cover of Figure 2;
Figure 4 is a diagrammatic view illustrating a further modification;
Figure 5 is a diagrammatic view illustrating an arrangement in which air is circulated;
Figure 6 is a transverse section through the cover of Figures 1, 4, and 5; I
Figure 7 is a view illustrating another modification, and
Figure 8 is a transverse section of the cover of Figure '7.
The cover of Figure 1 is shown as being a quilt unit of any desired type and which includes the usual condenser coil and compressing means. Refrigerant under pressure is discharged from the unit 20 through a regulating valve 22 and expands in the conduit l8 absorbing heat therefrom and is returned from the conduit l8 to be recompressed and condensed in the usual manner.
Thus the quilt I 0 will be cooled and will cool a person using it without requiring cooling of the entire room. In use, the quilt is placed with the layer M of heat conducting material adjacent the body of the user to permit the ready transfer of heat from the user's body to the conduit l8 and with the insulating layer l2 on the outside to retard the transfer of heat from the outside to the refrigerant.
Figures 2 and 3 illustrate a modification of the arrangement of Figure l in which both the evaporating cooling coil and the condensing coil are embedded in the quilt. In this modification a heat insulating layer 24 extends along the top of the quilt over that portion in which the cooling coil 26 is embedded and along the bottom of the quilt under that portion in which the condensing coil 28 is embedded. The bottom of the quilt is covered with a suitable heat conducting layer 30 and the spaces between the convolutions of the cooling coil are filled with suitable filling material 32. The upper surface of the quilt over the condensing coil 28 is covered with a cloth cover 34 to permit the transfer of heat from the coil to the atmosphere of the room.
A suitable motor driven compressor 36 has its inlet connected to the cooling coil 26 and its outlet connected to the condensing coil 28, the two coils being connected by an expansion valve 38. Refrigerant from the cooling coil 26 is compressed in the compressor 36, condensed in the coil 28 and expanded through valve 38 into the coil 26 to absorb heat therefrom.
Figure 4 illustrates a modified arrangement in which a quilt l0 having a cooling coil l8 identical with that of Figures 1 and 6 is employed.
In'this arrangement one end of the coil I8 is open to the atmosphere and the other end is connected through a regulating valve 40 with a tank 42 of compressed gas such as CO2. Compressed gas from the tank 42 passes through the valve 40 and expands in the coil l8 in'quilt II) to absorb heat therefrom and is then discharged I into the atmosphere.
Figure 5 illustrates a further modification employing a quilt l0 having a coil or conduit l8 identical with that of Figures 1, 4, and 6. In this modification the ends of the coil 18 are connected to a box 44 through which air is circulated by a blower 46-. A cooling coil 48 is mounted in the box 44 and is connected to be supplied with refrigerant by a refrigerating unit 50 to cool,
air circulating through the box.
According to this construction cool air only is circulated through the quilt thus reducing the weight of the quilt and eliminating any possibility of refrigerant escaping from the cooling coil I8.
Figures 7 and 8 illustrate a quilt formed with an upper layer 52 of insulating material and a lower layer 54 of porous heat conducting material with a relatively flat bag-56 of rubber or other flexible material therebetween; The bag 56 is provided with a plurality of openings 58 in its lower surface and with an inlet conduit 60 through which air is forced bya blower 62.
The inlet of the blower 62 is connected to a box 64 having an inlet 66 opening into the atmosphere. A refrigerating unit 68 has an evaporator coil 10 mounted in the box 64 to cool air passing therethrough. I
In use of the arrangement of Figures 7 and 8, air drawn into the inlet 66 is cooled by passing over the coil 10 and is forced through the conduit 60 into the bag 56 and out through the openlugs 58. Thus the cooled air from the bag passes over the user providing both cooling and ventilation.
While several embodiments of the invention have been shown and described, it will be apparent that many changes might be made therein and it is not my intention to be limited to any of the forms shown or otherwise than by the terms of the appended claims.
What is claimed is:
1. A bed cover comprising a layer of heat insulating material, an evaporator coil secured'on one side of said material, a condenser coil secured on the other side of said material beside but not'overlying said evaporator coil, an expansion valve connecting said coils, and a compressor having its inlet connected to said evaporator coil and its outlet connected to said condenser coii.
2. A cover comprising a layer of heat insulating material, an evaporator coil secured to one side of said layer, a layer ofheat transfer material on the other side of said coil from the heat insulating layer,'a condenser coil secured to the other side of said heat insulating layer from the evaporator coil, an expansion valve connecting said coils, a layer of heat transfer material on i the side of said condenser coil opposite the heat insulating layer, and a compressor having its inlet connected to the evaporator coil and its outlet connected to said condenser coil.
3. A cover comprising a flexible layer of heat insulating material, a flexible rubber tube forming an evaporator coil and secured to one side of saidlayer, a layer of heat transfer material on the other side of said coil from the heat insulating layer, a flexible tube forming a condenser coil secured to the other side of said heat insulating layer from the evaporator coil, an expansion valve connecting said coils, a layer of heat transfer material on the other side of said condenser denser coil.
VICTOR W. KLIESRATH.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2504308 *||Feb 9, 1948||Apr 18, 1950||Jr Lucius B Donkle||Heating and cooling cover|
|US2566865 *||Dec 26, 1946||Sep 4, 1951||Wingerter Ralph||Portable refrigerator|
|US2601189 *||Aug 22, 1949||Jun 17, 1952||Theodore Backer||Air comforter bed covering|
|US2785541 *||Nov 25, 1953||Mar 19, 1957||Borg Warner||Refrigerating apparatus and manually operable mechanical defrosting means therefor|
|US2787140 *||Apr 5, 1954||Apr 2, 1957||Adolphe C Peterson||Heat pump system and construction|
|US2938356 *||Apr 12, 1956||May 31, 1960||Little Inc A||Method and means for controlling temperatures adjacent living bodies|
|US2945354 *||Mar 18, 1957||Jul 19, 1960||North American Aviation Inc||Liquid oxygen conversion system|
|US2991627 *||Jul 1, 1959||Jul 11, 1961||Gen Electric||Thermoelectric blanket|
|US3112792 *||Sep 13, 1952||Dec 3, 1963||Jet Heet Inc||Personal thermal device|
|US3258065 *||Dec 9, 1963||Jun 28, 1966||Ward David J||Heat or cold emitting pack|
|US3276935 *||Oct 11, 1961||Oct 4, 1966||Calmac Corp||Method of manufacturing an improved thermal blanket|
|US3391686 *||Aug 16, 1966||Jul 9, 1968||George C. Wiswell Jr.||Wet diving suit heating apparatus and system|
|US3738367 *||Feb 11, 1971||Jun 12, 1973||Angelica Corp||Patient garment with temperature control|
|US3867939 *||Jul 23, 1973||Feb 25, 1975||Moore Perk Corp||Disposable, sterile temperature control applicator pad for medical application|
|US3916911 *||Dec 7, 1973||Nov 4, 1975||Vari Temp Manufacturing Corp||Portable cooling apparatus|
|US3918458 *||Oct 7, 1974||Nov 11, 1975||Nethery Howard J||Process and apparatus for cryostatic pre-operative treatment of gangrenous extremeties|
|US4017921 *||Jan 30, 1975||Apr 19, 1977||Hernandez Carmen T||Cooling blanket|
|US4026299 *||Sep 26, 1975||May 31, 1977||Vari-Temp Manufacturing Co.||Cooling and heating apparatus|
|US4114620 *||Mar 2, 1977||Sep 19, 1978||Moore-Perk Corporation||Patient treatment pad for hot or cold use|
|US4249923 *||Jul 10, 1979||Feb 10, 1981||Walda Kim L||Cardioplegic fluid refrigeration and delivery system|
|US4572188 *||Mar 5, 1984||Feb 25, 1986||Augustine Scott D||Airflow cover for controlling body temperature|
|US4718429 *||Mar 9, 1984||Jan 12, 1988||Udo Smidt||Method of reducing fatty deposits in the human body|
|US4844072 *||Dec 27, 1985||Jul 4, 1989||Seabrook Medical Systems, Inc.||Liquid-circulating thermal therapy system|
|US5125238 *||Apr 29, 1991||Jun 30, 1992||Progressive Dynamics, Inc.||Patient warming or cooling blanket|
|US5165400 *||Mar 4, 1991||Nov 24, 1992||Cincinnati Sub-Zero Products, Inc.||Convective hyperthermia article|
|US5184612 *||May 28, 1992||Feb 9, 1993||Augustine Medical, Inc.||Thermal blanket with transparent upper body drape|
|US5251347 *||Jan 3, 1992||Oct 12, 1993||Stryker Corporation||Bed having patient warming apparatus|
|US5265599 *||Oct 1, 1992||Nov 30, 1993||Progressive Dynamics, Inc.||Patient temperature control blanket with controlled air distribution|
|US5300100 *||Aug 22, 1990||Apr 5, 1994||Advanced Warming Systems, Inc.||Body warmer|
|US5300101 *||Jul 12, 1991||Apr 5, 1994||Augustine Medical, Inc.||Method and apparatus for treatment of pediatric hypothermia|
|US5300102 *||May 19, 1992||Apr 5, 1994||Augustine Medical, Inc.||Thermal blanket|
|US5324320 *||May 20, 1991||Jun 28, 1994||Augustine Medical, Inc.||Thermal blanket|
|US5405370 *||Dec 22, 1993||Apr 11, 1995||Irani; Feraidoon||Air blanket|
|US5405371 *||Jan 8, 1991||Apr 11, 1995||Augustine Medical, Inc.||Thermal blanket|
|US5456702 *||Jan 18, 1994||Oct 10, 1995||Falk; Stephen A.||Method for localized temperature regulation of an open surgical field during an operative procedure|
|US5620482 *||Feb 15, 1995||Apr 15, 1997||Augustine Medical, Inc.||Inflatable thermal blanket with a foot drape|
|US5632769 *||Jul 2, 1996||May 27, 1997||Mallinckrodt Medical, Inc.||Warming blanket for pediatric use|
|US5640727 *||Oct 18, 1995||Jun 24, 1997||Mallinckrodt Medical, Inc.||Contoured inflatable blanket|
|US5643337 *||Sep 11, 1996||Jul 1, 1997||Mallinckrodt Medical, Inc.||Warming blanket for pediatric use|
|US5674269 *||Feb 6, 1995||Oct 7, 1997||Augustine Medical, Inc.||Patient warming system with user-configurable access panel|
|US5675848 *||Oct 18, 1995||Oct 14, 1997||Mallinckrodt Medical, Inc.||Inflatable blanket having perforations of different sizes|
|US5683441 *||Sep 24, 1996||Nov 4, 1997||Mallinckrodt Medical, Inc.||Inflatable blanket having air flow deflector|
|US5697963 *||Dec 20, 1995||Dec 16, 1997||Augustine Medical, Inc.||Thermal blanket for a patient sitting in a chair|
|US5716387 *||Jul 15, 1996||Feb 10, 1998||Mallinckrodt Medical, Inc.||Warming blanket for pediatric use|
|US5733318 *||Aug 2, 1996||Mar 31, 1998||Augustine Medical, Inc.||Convertible thermal blanket|
|US5735890 *||Oct 18, 1995||Apr 7, 1998||Mallinckrodt Medical, Inc.||Inflatable blanket having access slits|
|US5749109 *||Apr 16, 1997||May 12, 1998||Mallinckrodt Medical, Inc.||Inflatable blanket having selective air flow patterns|
|US5773275 *||Sep 21, 1995||Jun 30, 1998||Augustine Medical, Inc.||Inflatable thermal blanket with provision for being secured during use|
|US5792216 *||Feb 19, 1997||Aug 11, 1998||Mallincrodt Medical, Inc.||Methods of preventing hypothermia using an upper body warming blanket|
|US5824025 *||Aug 20, 1997||Oct 20, 1998||Augustine Medical, Inc.||System for convective warming of a patient during cardiac surgery|
|US5839133 *||Jul 19, 1996||Nov 24, 1998||Mallinckrodt Medical, Inc.||Warming blanket having multiple inlets|
|US5890243 *||Sep 5, 1996||Apr 6, 1999||Mallinckrodt, Inc.||Inflatable blanket having openings formed therein|
|US5941907 *||Jun 2, 1997||Aug 24, 1999||Augustine Medical, Inc.||Surgical barrier device incorporating an inflatable thermal blanket with a surgical drape to provide thermal control and surgical access|
|US5948012 *||Sep 16, 1997||Sep 7, 1999||Cincinnati Sub-Zero Products, Inc.||Cold therapy device|
|US5964792 *||Nov 6, 1997||Oct 12, 1999||Augustine Medical, Inc.||Convertible thermal blanket|
|US5968084 *||May 21, 1997||Oct 19, 1999||Augustine Medical, Inc.||Thermal blanket|
|US5974605 *||Sep 15, 1998||Nov 2, 1999||Mallinckrodt Inc.||Warming blanket having multiple inlets|
|US5989285 *||Aug 15, 1996||Nov 23, 1999||Thermotek, Inc.||Temperature controlled blankets and bedding assemblies|
|US6013098 *||Jul 2, 1996||Jan 11, 2000||Mallinckrodt Inc.||Warming blanket for pediatric use|
|US6036722 *||Jul 27, 1998||Mar 14, 2000||Augustine Medical, Inc.||System for convective warming of a patient during cardiac surgery|
|US6070422 *||Sep 7, 1995||Jun 6, 2000||Supertainer International As||Transport hood/cover and application thereof|
|US6112348 *||Jan 19, 1999||Sep 5, 2000||Mallinckrodt Inc.||Inflatable blanket having openings formed therein|
|US6113626 *||Apr 23, 1998||Sep 5, 2000||The Board Of Regents Of The University Of Texas System||Heat transfer blanket for controlling a patient's temperature|
|US6143020 *||Jul 10, 1998||Nov 7, 2000||Respiratory Support Products, Inc.||Air warming system for providing a controlled temperature of air to an air blanket|
|US6156058 *||Sep 20, 1999||Dec 5, 2000||Mallinckrodt Inc.||Warming blanket for pediatric use|
|US6176870||Aug 13, 1997||Jan 23, 2001||Augustine Medical, Inc.||Inflatable thermal blanket with surgical access for use with patients in the lithotomy position|
|US6203567||Apr 5, 1999||Mar 20, 2001||Augustine Medical, Inc.||Surgical barrier device incorporating an inflatable thermal blanket with a surgical drape to provide thermal control and surgical access|
|US6210428||Jun 16, 1999||Apr 3, 2001||Augustine Medical, Inc.||System and method for treatment of hypothermia|
|US6287327 *||May 16, 1997||Sep 11, 2001||Augustine Medical, Inc.||Inflateable thermal blanket|
|US6290716||Jul 29, 1999||Sep 18, 2001||Augustine Medical, Inc.||Convertible thermal blanket|
|US6309409||Dec 11, 1997||Oct 30, 2001||Augustine Medical, Inc.||Inflatable thermal blanket with provision for being secured during use|
|US6440157||Nov 3, 2000||Aug 27, 2002||Respiratory Support Products Inc.||Air warming system for providing a controlled temperature of air to an air blanket|
|US6524332||Feb 9, 2001||Feb 25, 2003||Augustine Medical, Inc.||System and method for warming a person to prevent or treat hypothermia|
|US6544283||Apr 10, 1997||Apr 8, 2003||Augustine Medical, Inc.||Thermal blanket with a drape|
|US6558413 *||Mar 9, 2001||May 6, 2003||Augustine Medical, Inc.||Inflatable device with exhausting apertures which vary in density|
|US7037068||Oct 24, 2003||May 2, 2006||Level 1, Inc.||Warm air blower for medical warming blankets|
|US7041122||Dec 5, 2003||May 9, 2006||Gaymar Industries, Inc.||Inflatable blanket with a tie|
|US7090692||May 13, 1997||Aug 15, 2006||Arizant Healthcare Inc.||Thermal Blanket|
|US7101389 *||Apr 10, 1995||Sep 5, 2006||Arizant Healthcare Inc.||Inflatable lower body thermal blanket|
|US7108713||Jan 29, 2001||Sep 19, 2006||Arizant Healthcare Inc.||Surgical barrier device incorporating an inflatable thermal blanket with a surgical drape to provide thermal control and surgical access|
|US7804686||Jul 18, 2008||Sep 28, 2010||Thermotek, Inc.||Thermal control system for rack mounting|
|US7871428||Aug 28, 2006||Jan 18, 2011||Arizant Healthcare Inc.||Surgical barrier device incorporating an inflatable thermal blanket with an attached surgical drape|
|US7909861||Oct 13, 2006||Mar 22, 2011||Thermotek, Inc.||Critical care thermal therapy method and system|
|US8100956||May 9, 2007||Jan 24, 2012||Thermotek, Inc.||Method of and system for thermally augmented wound care oxygenation|
|US8105370||Dec 2, 2010||Jan 31, 2012||Arizant Healthcare Inc.||Surgical barrier device incorporating an inflatable thermal blanket with an attached surgical drape|
|US8128672||Oct 17, 2007||Mar 6, 2012||Thermotek, Inc.||Wound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation|
|US8142486||Jul 26, 2011||Mar 27, 2012||Thermotek, Inc.||Wound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation|
|US8248798||Aug 30, 2010||Aug 21, 2012||Thermotek, Inc.||Thermal control system for rack mounting|
|US8397677 *||Jun 15, 2011||Mar 19, 2013||Conco Technology, Inc.||Thermal conductive cooling method and system for livestock farm operations|
|US8425580||May 13, 2011||Apr 23, 2013||Thermotek, Inc.||Method of and system for thermally augmented wound care oxygenation|
|US8574278||Apr 26, 2012||Nov 5, 2013||Thermotek, Inc.||Wound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation|
|US8632576||Jan 26, 2012||Jan 21, 2014||Thermotek, Inc.|
|US8753383||Mar 23, 2010||Jun 17, 2014||Thermotek, Inc.||Compression sequenced thermal therapy system|
|US8758419||Feb 2, 2009||Jun 24, 2014||Thermotek, Inc.||Contact cooler for skin cooling applications|
|US8778005||Sep 19, 2008||Jul 15, 2014||Thermotek, Inc.||Method and system for thermal and compression therapy relative to the prevention of deep vein thrombosis|
|US8940034||Aug 9, 2013||Jan 27, 2015||Thermotek, Inc.|
|US9119705||Apr 10, 2007||Sep 1, 2015||Thermotek, Inc.||Method and system for thermal and compression therapy relative to the prevention of deep vein thrombosis|
|US20040153132 *||Oct 24, 2003||Aug 5, 2004||Cobb Christopher B.||Warm air blower for medical warming blankets|
|US20050125048 *||Dec 5, 2003||Jun 9, 2005||Paolini Raymond P.||Inflatable blanket with a tie|
|US20050143797 *||Jul 19, 2004||Jun 30, 2005||Thermotek, Inc.||Compression sequenced thermal therapy system|
|US20050284417 *||Jun 25, 2004||Dec 29, 2005||Animal Capture Equipment, Inc.||Device for cooling and moistening sea mammal|
|US20060162085 *||Jan 23, 2006||Jul 27, 2006||Gaymar Industries, Inc.||Inflatable blanket with a tie|
|US20060293735 *||Aug 28, 2006||Dec 28, 2006||Arizant Healthcare Inc.||Surgical barrier device incorporating an inflatable thermal blanket with an attached surgical drape|
|US20100057169 *||Mar 24, 2006||Mar 4, 2010||Hill-Rom Services , Inc. a corporation||Thermoregulation device|
|US20110283952 *||Nov 24, 2011||Conco Technology, Inc.||Thermal conductive cooling method and system for livestock farm operations|
|US20120167607 *||Jul 5, 2012||Callender Stephen R||Cooled surface for animals|
|USD662212||Aug 24, 2011||Jun 19, 2012||Thermotek, Inc.||Butterfly wrap|
|USD662213||Sep 21, 2011||Jun 19, 2012||Thermotek, Inc.||Knee wrap|
|USD662214||Aug 24, 2011||Jun 19, 2012||Thermotek, Inc.||Circumferential leg wrap|
|USD664260||Aug 24, 2011||Jul 24, 2012||Thermotek, Inc.||Calf wrap|
|USD679023||Jul 21, 2011||Mar 26, 2013||Thermotek, Inc.||Foot wrap|
|USRE38462||Jun 5, 1996||Mar 9, 2004||Augustine Medical, Inc.||Thermal blanket|
|DE3308553A1 *||Mar 10, 1983||Sep 20, 1984||Udo Prof Dr Med Smidt||Kuehl-auflage fuer den menschlichen koerper|
|EP0659373A2 *||Dec 16, 1994||Jun 28, 1995||Hiroko Suzuki||Air controlled comforter|
|WO1999053874A1||Apr 21, 1999||Oct 28, 1999||Univ Texas||Heat transfer blanket for and method of controlling a patient's temperature|
|U.S. Classification||62/261, 62/331, 165/46, 62/435, 62/419, 126/204, 607/104, 5/423, 62/51.1|