Valve

Details Valve Valve

1974-11-11

1976-03-02

Cline, William R.

Fluid handling

Line condition change responsive valves

Bi-directional flow valves

1375251, F16K 1514

Patent

active

039411494

ABSTRACT:
A duckbill-umbrella valve capable of resisting undesired flow is provided by a cylindrical elongated member defining a passageway and including converging flexible lips which are strengthened by a radially outward portion of the cylindrical elongated member surrounding the flexible lips.

REFERENCES:
patent: 456028 (1891-07-01), Foster
patent: 3159176 (1964-12-01), Russell et al.

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