Patent ID: 8539777

Claim:
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.