Method of packaging a beverage and a package structure

Details Method of packaging a beverage and a package structure Method of packaging a beverage and a package structure

1989-04-28

1991-03-05

Culver, Horace M.

Package making

Methods

Forming a cover adjunct or application of a cover adjunct to...

53432, 53467, 53471, 426115, 426131, 426397, 206219, 220906, 413 4, B65B 3100, B65B 302, B65B 2906, B65D 8572

Patent

active

049968238

ABSTRACT:
Method of packaging a beverage and a package structure has a cylindrical tube 1 over an end 3 of which is located a partition 2 having restricted orifice and both are sealed, for example by crimping, to the rim of tube 1. Primary chamber 4 is formed within the tube and secondary chamber 8 is formed between the partition 2 and closure 7 which chambers communicate through orifice 6. Chamber 4 is charged with beverage 11 containing gas in solution and sealed with end wall 12 crimped to the rim 9 of the tube 1. Prior to sealing chamber 9 is dosed with liquid nitrogen or carbon dioxide so that headspace 13 is pressurized. The package adjusts to a state of equilibrium in which beverage flows into the secondary chamber 8 to form headspace 14 therein. Upon opening of the package with pull tag 15 a pressure differential between the headspaces 14 and 13 causes beverage and/or gas in chamber 8 to be ejected through orifice 6 into beverage 11 and thereby gas in solution in the beverage to be liberated and form, or assist in the formation of, a head of froth on the beverage.

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patent: 4693054 (1987-09-01), Spargo
patent: 4703609 (1987-11-01), Yoshida et al.
patent: 4832968 (1989-05-01), Forage et al.

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