Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS2110022 A
Publication typeGrant
Publication dateMar 1, 1938
Filing dateJul 15, 1935
Priority dateJul 15, 1935
Publication numberUS 2110022 A, US 2110022A, US-A-2110022, US2110022 A, US2110022A
InventorsKliesrath Victor W
Original AssigneeInternat Engineering Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cover
US 2110022 A
Abstract  available in
Images(2)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

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.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2504308 *Feb 9, 1948Apr 18, 1950Jr Lucius B DonkleHeating and cooling cover
US2566865 *Dec 26, 1946Sep 4, 1951Wingerter RalphPortable refrigerator
US2601189 *Aug 22, 1949Jun 17, 1952Theodore BackerAir comforter bed covering
US2785541 *Nov 25, 1953Mar 19, 1957Borg WarnerRefrigerating apparatus and manually operable mechanical defrosting means therefor
US2787140 *Apr 5, 1954Apr 2, 1957Adolphe C PetersonHeat pump system and construction
US2938356 *Apr 12, 1956May 31, 1960Little Inc AMethod and means for controlling temperatures adjacent living bodies
US2945354 *Mar 18, 1957Jul 19, 1960North American Aviation IncLiquid oxygen conversion system
US2991627 *Jul 1, 1959Jul 11, 1961Gen ElectricThermoelectric blanket
US3112792 *Sep 13, 1952Dec 3, 1963Jet Heet IncPersonal thermal device
US3258065 *Dec 9, 1963Jun 28, 1966Ward David JHeat or cold emitting pack
US3276935 *Oct 11, 1961Oct 4, 1966Calmac CorpMethod of manufacturing an improved thermal blanket
US3391686 *Aug 16, 1966Jul 9, 1968George C. Wiswell Jr.Wet diving suit heating apparatus and system
US3738367 *Feb 11, 1971Jun 12, 1973Angelica CorpPatient garment with temperature control
US3867939 *Jul 23, 1973Feb 25, 1975Moore Perk CorpDisposable, sterile temperature control applicator pad for medical application
US3916911 *Dec 7, 1973Nov 4, 1975Vari Temp Manufacturing CorpPortable cooling apparatus
US3918458 *Oct 7, 1974Nov 11, 1975Nethery Howard JProcess and apparatus for cryostatic pre-operative treatment of gangrenous extremeties
US4017921 *Jan 30, 1975Apr 19, 1977Hernandez Carmen TCooling blanket
US4026299 *Sep 26, 1975May 31, 1977Vari-Temp Manufacturing Co.Cooling and heating apparatus
US4114620 *Mar 2, 1977Sep 19, 1978Moore-Perk CorporationPatient treatment pad for hot or cold use
US4249923 *Jul 10, 1979Feb 10, 1981Walda Kim LCardioplegic fluid refrigeration and delivery system
US4572188 *Mar 5, 1984Feb 25, 1986Augustine Scott DAirflow cover for controlling body temperature
US4718429 *Mar 9, 1984Jan 12, 1988Udo SmidtMethod of reducing fatty deposits in the human body
US4844072 *Dec 27, 1985Jul 4, 1989Seabrook Medical Systems, Inc.Liquid-circulating thermal therapy system
US5125238 *Apr 29, 1991Jun 30, 1992Progressive Dynamics, Inc.Patient warming or cooling blanket
US5165400 *Mar 4, 1991Nov 24, 1992Cincinnati Sub-Zero Products, Inc.Convective hyperthermia article
US5184612 *May 28, 1992Feb 9, 1993Augustine Medical, Inc.Thermal blanket with transparent upper body drape
US5251347 *Jan 3, 1992Oct 12, 1993Stryker CorporationBed having patient warming apparatus
US5265599 *Oct 1, 1992Nov 30, 1993Progressive Dynamics, Inc.Patient temperature control blanket with controlled air distribution
US5300100 *Aug 22, 1990Apr 5, 1994Advanced Warming Systems, Inc.Body warmer
US5300101 *Jul 12, 1991Apr 5, 1994Augustine Medical, Inc.Method and apparatus for treatment of pediatric hypothermia
US5300102 *May 19, 1992Apr 5, 1994Augustine Medical, Inc.Thermal blanket
US5324320 *May 20, 1991Jun 28, 1994Augustine Medical, Inc.Thermal blanket
US5405370 *Dec 22, 1993Apr 11, 1995Irani; FeraidoonAir blanket
US5405371 *Jan 8, 1991Apr 11, 1995Augustine Medical, Inc.Thermal blanket
US5456702 *Jan 18, 1994Oct 10, 1995Falk; Stephen A.Method for localized temperature regulation of an open surgical field during an operative procedure
US5620482 *Feb 15, 1995Apr 15, 1997Augustine Medical, Inc.Inflatable thermal blanket with a foot drape
US5632769 *Jul 2, 1996May 27, 1997Mallinckrodt Medical, Inc.Warming blanket for pediatric use
US5640727 *Oct 18, 1995Jun 24, 1997Mallinckrodt Medical, Inc.Contoured inflatable blanket
US5643337 *Sep 11, 1996Jul 1, 1997Mallinckrodt Medical, Inc.Warming blanket for pediatric use
US5674269 *Feb 6, 1995Oct 7, 1997Augustine Medical, Inc.Patient warming system with user-configurable access panel
US5675848 *Oct 18, 1995Oct 14, 1997Mallinckrodt Medical, Inc.Inflatable blanket having perforations of different sizes
US5683441 *Sep 24, 1996Nov 4, 1997Mallinckrodt Medical, Inc.Inflatable blanket having air flow deflector
US5697963 *Dec 20, 1995Dec 16, 1997Augustine Medical, Inc.Thermal blanket for a patient sitting in a chair
US5716387 *Jul 15, 1996Feb 10, 1998Mallinckrodt Medical, Inc.Warming blanket for pediatric use
US5733318 *Aug 2, 1996Mar 31, 1998Augustine Medical, Inc.Convertible thermal blanket
US5735890 *Oct 18, 1995Apr 7, 1998Mallinckrodt Medical, Inc.Inflatable blanket having access slits
US5749109 *Apr 16, 1997May 12, 1998Mallinckrodt Medical, Inc.Inflatable blanket having selective air flow patterns
US5773275 *Sep 21, 1995Jun 30, 1998Augustine Medical, Inc.Inflatable thermal blanket with provision for being secured during use
US5792216 *Feb 19, 1997Aug 11, 1998Mallincrodt Medical, Inc.Methods of preventing hypothermia using an upper body warming blanket
US5824025 *Aug 20, 1997Oct 20, 1998Augustine Medical, Inc.System for convective warming of a patient during cardiac surgery
US5839133 *Jul 19, 1996Nov 24, 1998Mallinckrodt Medical, Inc.Warming blanket having multiple inlets
US5890243 *Sep 5, 1996Apr 6, 1999Mallinckrodt, Inc.Inflatable blanket having openings formed therein
US5941907 *Jun 2, 1997Aug 24, 1999Augustine Medical, Inc.Surgical barrier device incorporating an inflatable thermal blanket with a surgical drape to provide thermal control and surgical access
US5948012 *Sep 16, 1997Sep 7, 1999Cincinnati Sub-Zero Products, Inc.Cold therapy device
US5964792 *Nov 6, 1997Oct 12, 1999Augustine Medical, Inc.Convertible thermal blanket
US5968084 *May 21, 1997Oct 19, 1999Augustine Medical, Inc.Thermal blanket
US5974605 *Sep 15, 1998Nov 2, 1999Mallinckrodt Inc.Warming blanket having multiple inlets
US5989285 *Aug 15, 1996Nov 23, 1999Thermotek, Inc.Temperature controlled blankets and bedding assemblies
US6013098 *Jul 2, 1996Jan 11, 2000Mallinckrodt Inc.Warming blanket for pediatric use
US6036722 *Jul 27, 1998Mar 14, 2000Augustine Medical, Inc.System for convective warming of a patient during cardiac surgery
US6070422 *Sep 7, 1995Jun 6, 2000Supertainer International AsTransport hood/cover and application thereof
US6112348 *Jan 19, 1999Sep 5, 2000Mallinckrodt Inc.Inflatable blanket having openings formed therein
US6113626 *Apr 23, 1998Sep 5, 2000The Board Of Regents Of The University Of Texas SystemHeat transfer blanket for controlling a patient's temperature
US6143020 *Jul 10, 1998Nov 7, 2000Respiratory Support Products, Inc.Air warming system for providing a controlled temperature of air to an air blanket
US6156058 *Sep 20, 1999Dec 5, 2000Mallinckrodt Inc.Warming blanket for pediatric use
US6176870Aug 13, 1997Jan 23, 2001Augustine Medical, Inc.Inflatable thermal blanket with surgical access for use with patients in the lithotomy position
US6203567Apr 5, 1999Mar 20, 2001Augustine Medical, Inc.Surgical barrier device incorporating an inflatable thermal blanket with a surgical drape to provide thermal control and surgical access
US6210428Jun 16, 1999Apr 3, 2001Augustine Medical, Inc.System and method for treatment of hypothermia
US6287327 *May 16, 1997Sep 11, 2001Augustine Medical, Inc.Inflateable thermal blanket
US6290716Jul 29, 1999Sep 18, 2001Augustine Medical, Inc.Convertible thermal blanket
US6309409Dec 11, 1997Oct 30, 2001Augustine Medical, Inc.Inflatable thermal blanket with provision for being secured during use
US6440157Nov 3, 2000Aug 27, 2002Respiratory Support Products Inc.Air warming system for providing a controlled temperature of air to an air blanket
US6524332Feb 9, 2001Feb 25, 2003Augustine Medical, Inc.System and method for warming a person to prevent or treat hypothermia
US6544283Apr 10, 1997Apr 8, 2003Augustine Medical, Inc.Thermal blanket with a drape
US6558413 *Mar 9, 2001May 6, 2003Augustine Medical, Inc.Inflatable device with exhausting apertures which vary in density
US7037068Oct 24, 2003May 2, 2006Level 1, Inc.Warm air blower for medical warming blankets
US7041122Dec 5, 2003May 9, 2006Gaymar Industries, Inc.Inflatable blanket with a tie
US7090692May 13, 1997Aug 15, 2006Arizant Healthcare Inc.Thermal Blanket
US7101389 *Apr 10, 1995Sep 5, 2006Arizant Healthcare Inc.Inflatable lower body thermal blanket
US7108713Jan 29, 2001Sep 19, 2006Arizant Healthcare Inc.Surgical barrier device incorporating an inflatable thermal blanket with a surgical drape to provide thermal control and surgical access
US7804686Jul 18, 2008Sep 28, 2010Thermotek, Inc.Thermal control system for rack mounting
US7871428Aug 28, 2006Jan 18, 2011Arizant Healthcare Inc.Surgical barrier device incorporating an inflatable thermal blanket with an attached surgical drape
US7909861Oct 13, 2006Mar 22, 2011Thermotek, Inc.Critical care thermal therapy method and system
US8100956May 9, 2007Jan 24, 2012Thermotek, Inc.Method of and system for thermally augmented wound care oxygenation
US8105370Dec 2, 2010Jan 31, 2012Arizant Healthcare Inc.Surgical barrier device incorporating an inflatable thermal blanket with an attached surgical drape
US8128672Oct 17, 2007Mar 6, 2012Thermotek, Inc.Wound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation
US8142486Mar 27, 2012Thermotek, Inc.Wound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation
US8248798Aug 21, 2012Thermotek, Inc.Thermal control system for rack mounting
US8397677 *Jun 15, 2011Mar 19, 2013Conco Technology, Inc.Thermal conductive cooling method and system for livestock farm operations
US8425580May 13, 2011Apr 23, 2013Thermotek, Inc.Method of and system for thermally augmented wound care oxygenation
US8574278Apr 26, 2012Nov 5, 2013Thermotek, Inc.Wound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation
US8632576Jan 26, 2012Jan 21, 2014Thermotek, Inc.Wound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation
US8753383Mar 23, 2010Jun 17, 2014Thermotek, Inc.Compression sequenced thermal therapy system
US8758419Feb 2, 2009Jun 24, 2014Thermotek, Inc.Contact cooler for skin cooling applications
US8778005Sep 19, 2008Jul 15, 2014Thermotek, Inc.Method and system for thermal and compression therapy relative to the prevention of deep vein thrombosis
US8940034Aug 9, 2013Jan 27, 2015Thermotek, Inc.Wound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation
US9119705Apr 10, 2007Sep 1, 2015Thermotek, Inc.Method and system for thermal and compression therapy relative to the prevention of deep vein thrombosis
US9180041Apr 18, 2014Nov 10, 2015Thermotek, Inc.Compression sequenced thermal therapy system
US20040153132 *Oct 24, 2003Aug 5, 2004Cobb Christopher B.Warm air blower for medical warming blankets
US20050125048 *Dec 5, 2003Jun 9, 2005Paolini Raymond P.Inflatable blanket with a tie
US20050143797 *Jul 19, 2004Jun 30, 2005Thermotek, Inc.Compression sequenced thermal therapy system
US20050284417 *Jun 25, 2004Dec 29, 2005Animal Capture Equipment, Inc.Device for cooling and moistening sea mammal
US20060162085 *Jan 23, 2006Jul 27, 2006Gaymar Industries, Inc.Inflatable blanket with a tie
US20060293735 *Aug 28, 2006Dec 28, 2006Arizant Healthcare Inc.Surgical barrier device incorporating an inflatable thermal blanket with an attached surgical drape
US20070112401 *Oct 13, 2006May 17, 2007Niran BalachandranCritical care thermal therapy method and system
US20070282249 *May 9, 2007Dec 6, 2007Tony QuisenberryMethod of and system for thermally augmented wound care oxygenation
US20080058911 *Apr 10, 2007Mar 6, 2008Parish Overton LMethod and system for thermal and compression therapy relative to the prevention of deep vein thrombosis
US20080071330 *Oct 17, 2007Mar 20, 2008Tony QuisenberryWound care method and system with one or both of vacuum-light therapy and thermally augmented oxygenation
US20090069731 *Sep 19, 2008Mar 12, 2009Parish Overton LMethod and system for thermal and compression therapy relative to the prevention of deep vein thrombosis
US20090109622 *Jul 18, 2008Apr 30, 2009Parish Overton LThermal control system for rack mounting
US20100057169 *Mar 24, 2006Mar 4, 2010Hill-Rom Services , Inc. a corporationThermoregulation device
US20110162659 *Dec 2, 2010Jul 7, 2011Arizant Healthcare Inc.Surgical barrier device incorporating an inflatable thermal blanket with an attached surgical drape
US20110209850 *Aug 30, 2010Sep 1, 2011Parish Overton LThermal control system for rack mounting
US20110283952 *Nov 24, 2011Conco Technology, Inc.Thermal conductive cooling method and system for livestock farm operations
US20120167607 *Jul 5, 2012Callender Stephen RCooled surface for animals
USD662212Jun 19, 2012Thermotek, Inc.Butterfly wrap
USD662213Jun 19, 2012Thermotek, Inc.Knee wrap
USD662214Jun 19, 2012Thermotek, Inc.Circumferential leg wrap
USD664260Jul 24, 2012Thermotek, Inc.Calf wrap
USD679023Mar 26, 2013Thermotek, Inc.Foot wrap
USRE38462Jun 5, 1996Mar 9, 2004Augustine Medical, Inc.Thermal blanket
DE3308553A1 *Mar 10, 1983Sep 20, 1984Udo Prof Dr Med SmidtKuehl-auflage fuer den menschlichen koerper
EP0659373A2 *Dec 16, 1994Jun 28, 1995Hiroko SuzukiAir controlled comforter
WO1999053874A1Apr 21, 1999Oct 28, 1999The Board Of Regents Of The University Of Texas SystemHeat transfer blanket for and method of controlling a patient's temperature
Classifications
U.S. Classification62/261, 62/331, 165/46, 62/435, 62/419, 126/204, 607/104, 5/423, 62/51.1
International ClassificationA47G9/02
Cooperative ClassificationA47G9/0215
European ClassificationA47G9/02A2