Bottles and jars – Closures – With pressure-responsive valve
Patent
1987-01-15
1988-08-16
Marcus, Stephen
Bottles and jars
Closures
With pressure-responsive valve
215228, 215311, 141 65, B65D 5116
Patent
active
047638036
ABSTRACT:
A stopper having a slit valve is provided for a bottle which is adapted to be used with a pump for evacuating air from the bottle to preserve wine being consumed from the bottle or by increasing the pressure in the bottle, for example, to maintain the carbon dioxide content in a soft drink being consumed from the bottle. The stopper and valve are integral and are made of the same elastic material. The valve is surrounded by a raised circular edge for protecting the slit valve. A circular flange is provided which rests on the top of the bottle neck. The raised circular edge is shaped to sealably receive a pump housing.
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Marcus Stephen
Stucker Nova
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