Relating to containers
AssigneeBass Public Limited Company
InventorsStuart W. Molzahn, John Lawrence, William Dando
Life of this patent
Estimating the term…
Abstract
A self cooling beverage container or can. In one embodiment water (26) is maintained at low pressure such that the boiling point is reduced. The water (26) is caused to boil and the vapour to be absorbed by a desiccant. The boiling of the water (26) causes heat to be absorbed from the beverage. The desiccant may be carbon (28). The water (26) or carbon (28) (or other chemicals) in one embodiment are maintained within a blind bore (30) within the container. The water and carbon are separated by a burstable membrane (42).
Claims26
A beverage container adapted to hold a beverage, said container having a cooling chamber therein containing a first and a second chemical, said second chemical being held in a first portion of said cooling chamber thermally insulated from said beverage, said first chemical being held in a portion of said cooling chamber separated from said first portion by a membrane, rupturing means being provided to rupture said membrane allowing the first and second chemicals to mix, said first chemical being water and said second chemical being carbon, the cooling chamber being provided in a combined unit with a head generator, said generator generates a head when said container is opened, said combined unit being provided within said container.
A beverage container adapted to hold a beverage, said container having a cooling chamber therein containing a first and a second chemical, said second chemical being held in a first portion of said cooling chamber thermally insulated from said beverage, said first chemical being held in a portion of said cooling chamber separated from said first portion by a membrane, rupturing means being provided to rupture said membrane allowing the first and second chemicals to mix, said first chemical being water and said second chemical being carbon, said container being defined by a wall with said wall having a bistable portion that can be moved from a first condition to a second condition manually by a user, with said membrane being ruptured by said movement.
A beverage container adapted to hold a beverage, said container having a cooling chamber therein containing a first and a second chemical, said second chemical being held in a first portion of said cooling chamber thermally insulted from said beverage, said first chemical being held in a portion of said cooling chamber separated from said first portion by a membrane, rupturing means being provided to rupture said membrane allowing the first and second chemicals to mix, said first chemical being water and said second chemical being carbon, a splash protector being provided adapted to restrict passage of said water into said first portion.
Dependencies are inferred from the claim text.