Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling means controlled by gas condition in receiver
Patent
1989-11-08
1991-01-22
Cusick, Ernest G.
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Filling means controlled by gas condition in receiver
141 40, 141 46, 141301, 141 6, 141147, 141312, 277 34, 277152, 277142, B67C 306
Patent
active
049863185
ABSTRACT:
Counterpressure valves for filling cans with liquids under pressure such as carbonated beverages are disclosed. In a preferred embodiment, the present invention provides a filing valve in which the seal between the valve and a can is created by an O-ring seal disposed about a valve member. Preferably, two concentric, axially-spaced O-rings are used; a first o-ring serves as a guide, while the second, slightly larger O-ring creates a seal. Since the sealing O-ring may be moved axially along the can to permit the head space volume to expand, the need for a snift valve or similar relief valve is eliminated. Sealing valves utilizing radially expandable gaskets are also disclosed. In these embodiments, the gasket expand radially under counterpressure to form a seal with the inner surface of the can.
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"Uni-Blend--Soft Drink Can Filling Equipment", Crown Cork & Seal Company, Inc. (no date).
Crown Cork & Seal Company, Inc.
Cusick Ernest G.
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