Food or edible material: processes – compositions – and products – Packaged or wrapped product – Having consumer oriented diverse utility
Patent
1989-04-28
1991-04-23
Culver, Horace M.
Food or edible material: processes, compositions, and products
Packaged or wrapped product
Having consumer oriented diverse utility
426115, 426131, 426397, 206219, 220906, 53410, 53433, B65D 8572, B65B 3100, B65B 8120
Patent
active
050099019
ABSTRACT:
A method of packaging a beverage containing gas in solution and a beverage package has a chamber 9 in a moulded open topped container 1 (of plastics or metal) in a bottom wall 8 of which is formed a restricted orifice 10. The bottom of the container 1 is received in a cup shaped closure 11 and sealed thereto at 16 to form a chamber 12 which communicates with the chamber 9 through the orifice 10. The chamber 9 is charged with beverage 17 and its headspace 21 is dosed with liquid nitrogen or carbon dioxide prior to sealing with a cap 18 so that the headspace 21 is at a pressure greater than atmospheric. With the sealed package in equilibrium the chamber 12 contains beverage derived from the chamber 9 through the orifice 10 and has a headspace 22. Upon opening of the package by removing the cap 18 and exposing the headspace 21 to atmosphere, the pressure differential between the headspaces 21 and 22 causes beverage and/or gas in the chamber 12 to be ejected through the orifice 10 into the beverage 17 and thereby gas in solution in the beverage to be liberated to form or assist in the formation of a head of froth on the beverage.
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Arthur Guinness Son & Company (Dublin) Limited
Culver Horace M.
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