B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
226/22, 156/27,
B65B 31/00 (2006.01) B65B 3/04 (2006.01) B65D 79/00 (2006.01) B67C 3/02 (2006.01)
Patent
CA 1312001
ABSTRACT A method of packaging a beverage having gas in solution therewith in which an open topped container is charged with the beverage through the open top. The container is purged of air and pressurised with a gas selected from carbon dioxide, nitrogen or other inert gas and a partition wall having a restricted orifice is located over the beverage and sealed to the container to form a primary chamber within which the beverage is contained. A closure wall is located over the partition wall and sealed thereto and to the container to form with the partition wall a secondary chamber. The primary and secondary chambers communicate with each other through a restricted orifice in the partition wall. The assembly is now inverted so that beverage from the primary chamber enters the secondary chamber and a primary headspace is formed in the primary chamber and a secondary headspace is formed in the secondary chamber. Both said headspaces are at a pressure greater than atmospheric so that upon opening the container to expose the primary chamber to atmosphere, beverage and/or gas in the secondary chamber is ejected into the beverage in the primary chamber to develop or assist in the development of a head or froth on the beverage. The pressurisation of the container with the selected gas is preferably to be by dosing with the gas in liquid form before the closure wall is fitted and sealed to the container and either before or after the partition wall has been fitted to the container.
601423
Arthur Guinness Son & Company (dublin) Limited
Byrne William J.
Fetherstonhaugh & Co.
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