# US 8,539,777 B2 · Can cooling device

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- Number: US 8,539,777 B2
- Document ID: US8539777B2
- Status: Granted
- Kind: B2
- Application number: 13/065,657
- Filed: 2011-03-28
- Published: 2012-10-04
- Granted: 2013-09-24
- Earliest claimed: 2011-03-28
- Applicants: Daven Lee Henry
- Inventors: Daven Lee Henry
- Web page: https://patentgrep.com/patent/US8539777B2

## CPC

- F25D 5/02: portable, i.e. adapted to be carried personally
- F25D 2331/805: Cans
- F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B)

## Abstract

A can cooling device that includes a beverage can insulating sleeve, a cylindrical flexible bellows attached to the bottom of the sleeve and a bottom plate. A chemically activated cooling cartridge resides within the flexible bellows A cartridge push plate and compression spring reside within the bellows directly under the cooling cartridge. The cooling cartridge includes an outer flexible enclosure that houses a powder, an inner flexible enclosure containing a liquid, and a rigid plate with upwardly directed attached prongs. When a user presses down on the beverage can, the cooling cartridge is compressed causing the upwardly directed prongs to impale the liquid holding flexible inner enclosure and causing the liquid to mix with the powder causing an endothermic cooling reaction causing the beverage can inside the insulating sleeve to be cooled in relation to the surrounding outside temperature.

## Claims

### Claim 1

can cooling device comprising:
a can insulating sleeve;
a rigid sleeve retaining ring;
an cylindrical flexible bellows;
a bellows bottom rigid retaining ring;
a rigid bottom plate;
a chemically activated cooling cartridge;
a cartridge push plate;
a compression spring;
said can insulating sleeve fixedly connected to the top of said rigid sleeve retaining ring;
the top portion of said cylindrical bellows fixedly attached to the bottom portion of said rigid sleeve retaining ring;
the bottom portion of said cylindrical bellows fixedly attached to the top portion of said bellows bottom rigid retaining ring;
said cooling cartridge removably retained within said cylindrical bellows;
the top of said compression spring attached to the underside of said cartridge push plate;
said push plate providing an upwardly directed force to help said cooling cartridge be in intimate contact with the underside of a beverage can located within said can insulating sleeve;
the bottom of said compression spring attached to the top surface of said rigid bottom plate;
said bottom plate removably retained by attachment means to the underside of said bellows bottom retaining rigid ring;
said cooling cartridge comprised of an outer flexible enclosure which houses a powder material, a rigid plate having attached upwardly directed prongs an an inner flexible enclosure housing a liquid;
so that when a user presses down on said beverage can, said cooling cartridge is compressed causing said upwardly directed prongs to impale said liquid holding flexible inner enclosure and causing said liquid to mix with said powder causing an endothermic cooling reaction; and
said cooling reaction causing said beverage can to be cooled in relation to said surrounding outside temperature.