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Publication numberUS2900808 A
Publication typeGrant
Publication dateAug 25, 1959
Filing dateMay 14, 1957
Priority dateNov 22, 1955
Publication numberUS 2900808 A, US 2900808A, US-A-2900808, US2900808 A, US2900808A
InventorsWang Wensan
Original AssigneeWang Wensan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Pocket liquid cooling device
US 2900808 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Aug. 25, 1959 WENSAN WANG 2,900,808

POCKET LIQUID COOLING DEVICE Original Filed Nov. 22, 1955 IN V EN TOR.

United States Patent 2,900,808 POCKET LIQUID COOLING DEVICE Wensan Wang, Tokyo, Japan' Original application November 22, 1955, Serial No. 548,488, now Patent No. 2,805,556, dated September -10, 1957. Divided and this application May 14, 1957,

Serial No. 659,166

4 Claims. (Cl. 62-294) This application is a division of application Serial No. 548,488, filed November 22, 1955, now Patent No. 2,805,556, and relates to a pocket liquid-cooling device.

An object of the invention is to provide a liquid cooling device of the pocket type in which the liquid may be maintained in a cooled condition for a lengthy period.

Another object of the invention is to provide a liquid cooling device of the pocket type in which the liquid is cooled by the expansion of a refrigerating gas.

Other objects and advantages of the invention will become apparent from the following description taken in conjunction with the accompanying drawings, in which:

Figure l is a top plan view of one form of this invention.

Figure 2 is a vertical sectional view through Figure 1.

Figure 3 is a bottom plan view of Figure 1.

Figure 4 is a fragmentary enlarged sectional view taken substantially on the line 44 of Figure 2, and

Figure 5 is an enlarged fragmentary sectional view taken substantially along the line 5--5 of Figure 2.

Referring to the drawings in detail, a receptacle designated generally comprises a hollow cylindrical body 12 carrying adjacent one side a handle 14. The body 12 is lined with a suitable thermal insulation 16. Positioned within and spaced from the wall 22 of the receptacle 10 is a shell 17, the space between the shell 17 and the wall 22 of the receptacle 10 defining an expansion chamber 18. A cooling coil 24 having a plurality of spaced convolutions is positioned vertically within the shell 17 and has the uppermost one of the convolutions in communication with the expansion chamber 18 adjacent the upper end thereof as at 20. The lower end of the chamber 18 is vented as at 26 to atmosphere. Carried by the lowermost convolution of the coil 24 and extending radially therefrom and through the expansion chamber 18 is a nipple 28. Extending transversely across the body 12 adjacent the lower end thereof is a cartridge chamber 30, the underside of which opens downwardly and is closed by a hinged cover 32 which carries a bolt 34 that enters a skirt 36 carried by and extending downwardly from the bottom of the receptacle 10. Extending into the receptacle 10 and communicating with the cartridge chamber 30 adjacent one end thereof is a recess 35 which communicates through a passage 37 with a duct 38 that, in turn, communicates with the nipple 28 so' as to establish communication between the cartridge chamber 30 and the expansion chamber 18. A valve 40 is carried by the body 12 and extends through the duct 38 for a purpose to be more fully hereinafter described. Seated inthe recess 35 is a gasket 42 which is adapted to engage the neck 44 2,909,808 Patented Aug. 25, 1959 carried by the body 12 and extending into the passage 37 is a needle 48 having a passage 50 extending therethrough which communicates with the passage 37 at its junction with the duct 38. Extending through the body 12 in axial alignment with the passage 37 is an internally screw threaded opening 52 in which is threadedly received a pressure plug 54 carrying wings 56 by which the plug may be turned to cause it to advance into contact with the cartridge 46, and move it in a rectilinear path through the cartridge chamber 30 and into contact with the needle 50 to puncture the cartridge and permit the contents thereof to flow through the duct 38 into the expansion chamber 18, to cool the contents thereof. In the preferred form of the invention, a cover 58 is hingedly connected as at 60, to the body 12 to close the upper open end of the receptacle 10.

In use, it will be evident that when employing the device of the invention, the punctural cartridge 46 containing refrigerant is deposited in the cartridge chamber 30 through the bottom thereof after which the cover 32 is closed and bolted into place, as illustrated in Figure 2, it being understood that the plug 54 has been turned to cause it to retract and allow room for the insertion of the cartridge. With the cartridge in place, it will be evident that when it is desired to refrigerate the contents of the receptacle 10, the plug 54 is turned to advance the cartridge into contact with the needle 50 which punctures the cartridge and permits the contents thereof to flow through the passage 37 and duct 38 into the expansion chamber 18. The rapidity with which the refrigerant enters the expansion chamber 18 may be regulated by the valve 40 and as the refrigerant expands in the expansion chamber 18, a cooling of the contents thereof will be effected. Upon expansion of the refrigerant, it is permitted to escape through the vent 26 to atmosphere. Obviously, as the cartridge 46 is advanced into engagement with the needle 50, the neck 44 thereof will be firmly pressed into engagement with the gasket 42 to efiect a fluid tight junction between the cartridge and the wall of the recess 34.

What is claimed is:

1. A pocket liquid cooling device comprising a thermally insulated lined receptacle having an open top, a shell positioned .within and spaced from said receptacle, the space between said shell and said receptacle defining an expansion chamber, a cooling coil having a plurality of spaced convolutions positioned vertically within said shell and having the uppermost one of said convolutions in communication with said expansion chambenand a nipple carried by the lowermost convolution and extending through said expansion chamber and having the free end in communication with a duct formed in said receptacle, there being a passage in said receptacle having one end in communication with said duct and having the other end in communication with a recess formed in said receptacle, said receptacle having a cartridge chamber therein which communicates with said recess, a puncturable refrigerant containing cartridge mounted in the cartridge chamber for movement in a rectilinear path therein, and a needle extending into the passage and carried by said receptacle and extending in the path of movement of the cartridge for puncturing said cartridge upon its advance toward said needle and delivering refrigerant from said cartridge through the recess, passage, duct, and convolutions of the coil, into the expansion chamber.

2. The pocket liquid cooling device according to claim 1 wherein said cartridge chamber opens through the bottom of said receptacle, and an openable and closable cover closes the open bottom of said cartridge chamber.

3. A pocket liquid cooling device according to claim 1 which includes in addition means carried by the receptacle and extending into the cartridge chamber for engaging the cartridge and advancing it toward the needle.

4. A pocket liquid cooling device according to claim 1 which includes in addition means carried by the receptacle and extending into the cartridge chamber for engaging the cartridge and advancing it toward the needle, and a References Cited in the file of this patent UNITED STATES PATENTS 735,403 Osborne Aug. 4, 1903 2,155,956 Planer Apr. 25, 1939 1 2,475,755 Pearson July 12, 1949 2,746,264 Keyes May 22, 1956 FOREIGN PATENTS 26,771 Great Britain Dec. 19, 1898

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US735403 *Oct 26, 1899Aug 4, 1903Eugene F OsborneRefrigerator for bottled goods.
US2155956 *Jun 15, 1935Apr 25, 1939Josef OppenheimerPortable apparatus for making iced bodies
US2475755 *Nov 18, 1946Jul 12, 1949Pearson IncVehicle cooling apparatus using carbon dioxide
US2746264 *Jul 17, 1953May 22, 1956Alfred Bicknell Associates IncMiniature cooling unit
GB189826771A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3086372 *Feb 19, 1960Apr 23, 1963Alco Products IncHeat exchange means for space vehicles
US3148515 *Nov 2, 1962Sep 15, 1964JentisInsulin preserving travel kit for diabetics
US3269141 *Feb 26, 1965Aug 30, 1966Joseph F WeissBeverage container
US3309890 *Mar 15, 1965Mar 21, 1967Barnett Eugene RRefrigerated disposable container
US3320767 *Sep 23, 1965May 23, 1967George J WhalenSelf-chilling disposable container
US3494141 *Apr 23, 1968Feb 10, 1970Wray Jr John RobertCoolant insert with variable discharge orifice
US3702114 *Aug 26, 1970Nov 7, 1972Frigitronics Of Conn IncLiquid refrigerant spray device
US4628703 *Jul 29, 1985Dec 16, 1986Ho KimSelf operative cooling mechanism of can
US4784678 *Apr 6, 1987Nov 15, 1988The Coca-Cola CompanySelf-cooling container
US4802343 *Jul 1, 1987Feb 7, 1989The Coca-Cola CompanySelf-cooling container
US4993236 *Apr 6, 1990Feb 19, 1991Wilson John JSensitive pressure actuated automatic self-cooling device for beverage containers
US5083441 *Oct 7, 1990Jan 28, 1992Zeitlin Eric SComestible cooling device
US5115940 *Aug 8, 1991May 26, 1992Friedman Todd AContainer cooler apparatus
US5181836 *Jul 8, 1991Jan 26, 1993Zeitlin Eric SBeverage fanning device
US5447039 *Mar 29, 1994Sep 5, 1995Allison; Robert S.Beverage can cooling system
US5711164 *Oct 25, 1996Jan 27, 1998Slack; Patricia M.Portable cooler using CO2 for temporary cooling
US5979164 *Aug 31, 1998Nov 9, 1999Insta Heat, Inc.Container with integral module for heating or cooling the contents
US6035660 *Jul 27, 1998Mar 14, 2000W.C. Linden, Inc.Refrigerated beverage mug
US6266879Aug 26, 1999Jul 31, 2001Ontro, Inc.Container with integral module for heating or cooling the contents and method for its manufacture
US6266974Mar 14, 2000Jul 31, 2001W. C. Linden, Inc.Refrigerated beverage mug
US6351953Sep 25, 2000Mar 5, 2002James A. ScudderContainer with integral module for heating or cooling the contents and method for its manufacture
US6952934 *Apr 23, 2001Oct 11, 2005Jung Min LeeSelf-cooling liquid container
US7025055Mar 15, 2004Apr 11, 2006Ontech Delaware Inc.Tray for selectably heating or cooling the contents
US7117684Mar 15, 2004Oct 10, 2006Ontech Delaware Inc.Container with integral module for heating or cooling the contents
US9039924Dec 2, 2011May 26, 2015Frosty Cold, LlcCooling agent for cold packs and food and beverage containers
US20030159448 *Apr 23, 2001Aug 28, 2003Lee Jung MinSelf-cooling liquid container
US20050198968 *Mar 15, 2004Sep 15, 2005Scudder James A.Tray for selectably heating or cooling the contents
US20050198969 *Mar 15, 2004Sep 15, 2005Scudder James A.Container with integral module for heating or cooling the contents
US20060162344 *Mar 23, 2006Jul 27, 2006Ontech Delaware Inc.Container with module for heating or cooling the contents
EP0459508A2 *May 31, 1991Dec 4, 1991Senju Seiyaku Kabushiki KaishaPortable chiller
WO1995029105A1 *Apr 19, 1995Nov 2, 1995Halimi Edward MSelf-carbonating self-cooling beverage container
WO1997006392A1 *Aug 8, 1995Feb 20, 1997Allison Robert SBeverage can cooling system
WO2008124881A1 *Apr 14, 2008Oct 23, 2008Ronald WoodleighRefrigerating apparatus and method
Classifications
U.S. Classification62/294, 62/293, 62/457.9
International ClassificationF25D3/10
Cooperative ClassificationF25D3/107, F25D2331/808
European ClassificationF25D3/10C