Pressurized beverage package having an interior chamber for the production of foam on opening the package
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United States of America Patent
Stats
-
May 7, 1996
Grant Date -
N/A
app pub date -
Nov 1, 1993
filing date -
Nov 10, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A beverage package has a can 1 within a primary chamber 5 to which is located an insert 6 having a secondary chamber 10. The insert has a bore 11 within which is received a lower end of a capilliary tube 15. The can 1 contains beverage such as beer 20 having gas in solution and sealed to form a headspace 21 containing gas at a pressure greater than atmospheric. The tube 15 contains beverage and its upper end opens into the headspace 21. The secondary chamber 10 contains gas at a pressure greater than atmospheric and on opening of the container the headspace 21 de-pressurises causing beverage and/or gas from the chamber 10 to displace beverage through the restriction of the capilliary tube 15 directly into the headspace 21 causing froth to develop in the headspace.
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