Anti-reflux valve

Details Anti-reflux valve Anti-reflux valve

1975-05-12

1976-07-13

Nilson, Robert G.

Envelopes, wrappers, and paperboard boxes

File folder or file envelope

Hanging type

128 2F, 128295, 1375253, F16K 1514

Patent

active

039689255

ABSTRACT:
An anti-reflux valve mounted at the inlet port to the fluid collection chamber of a fluid collection bag and having a thin flexible valve element which is retained for limited floating movement over the inlet port and which flexes to permit flow of fluid into the collection chamber and which is moved against a valve seat surface surrounding the inlet port in response to fluid pressure inside of the collection chamber to thus prevent reflux of such fluid.

REFERENCES:
patent: 2378613 (1945-06-01), Young
patent: 3330100 (1967-07-01), Fesco
patent: 3382889 (1968-05-01), Heinz
patent: 3586041 (1971-06-01), Monestere
patent: 3626980 (1971-12-01), Svensson

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