Patent ID: 6103280
Filing Date: 2000-08-15
Classification: A23G,F25B,F25D

Abstract:
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.