Duckbilled check valves and methods of making and using same

Details Duckbilled check valves and methods of making and using same Duckbilled check valves and methods of making and using same

1999-09-10

2000-04-25

Ferensic, Denise L.

Fluid handling

Destructible or deformable element controlled

Destructible element

137 71, 137846, F16K 1714, F16K 1514

Patent

active

060531940

ABSTRACT:
Disclosed herein are closures that are formed via an injection molding process with a thin breakable web. When they are first placed in a fluid conduit and exposed to line pressure the web will break open so as to thereby create a duckbilled type check valve. Thus, the closure can provide a seal during long-term storage prior to use. However, once used it functions as a check valve.

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