초록 ▼

A self cooling beverage container or can. Different embodiments of a self cooling can are shown including the use of an endothermic reaction perhaps between ammonium nitrate and water. In another embodiment a volatile liquid is evaporated. In another embodiment water is maintained in a low pressure

A self cooling beverage container or can. Different embodiments of a self cooling can are shown including the use of an endothermic reaction perhaps between ammonium nitrate and water. In another embodiment a volatile liquid is evaporated. In another embodiment water is maintained in a low pressure environment and allowed to boil. The vapour which is produced from the boiling water is absorbed by a desiccant maintaining the boiling process. The cooling process may be initiated by the pressure release of a carbonated beverage can during opening of the can.

대표청구항 ▼

[ What is claimed is:] [1.] A self-cooling beverage container comprising:a beverage chamber having beverage retained in it;a solvent chamber having pressurised solvent retained in it;said pressurised solvent comprising methylal;a pressurised gas dissolved in the pressurised solvent;pressurisation me

[ What is claimed is:] [1.] A self-cooling beverage container comprising:a beverage chamber having beverage retained in it;a solvent chamber having pressurised solvent retained in it;said pressurised solvent comprising methylal;a pressurised gas dissolved in the pressurised solvent;pressurisation means adapted to hold said pressurised solvent with its dissolved gas at a pressure above atmospheric pressure;de-pressurisation means adapted to release said pressure in the solvent chamber;the arrangement being such that, in use, when said pressurised solvent chamber is de-pressurised said dissolved gas comes out of solution and expands, extracting heat from said solvent/beverage system, there being heat transfer means adapted to transfer heat from said beverage to the solvent and/or to the gas released from said solvent, the overall result being a cooling of said beverage.