Environmental check valve

Details Environmental check valve Environmental check valve

1977-11-25

1980-06-24

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

137512, F16K 1503

Patent

active

042090377

ABSTRACT:
A check valve with a mounting ring body defining an orifice and having valving means comprising two pivotal valve members mounted on one face thereof. Each valve member is configured to comprise a segment of a cone which is movable between a closed and an open position over the orifice by the flow of fluid. The strength of the valve members and the flow of fluid therethrough when the valve members are in their open position is maximized by providing the concave inner surface of each valve member with an ellipsoidal segment form. The mounting ring body is also provided with stops against which the valve members abut in their open position for reducing fluttering thereof during fluctuating flow rates and resulting surges in fluid pressure.

REFERENCES:
patent: 586618 (1897-07-01), Noll
patent: 2767735 (1956-10-01), Darling
patent: 3127148 (1964-03-01), Collar
patent: 3395727 (1968-08-01), Weise et al.
patent: 4007909 (1977-02-01), Buseth et al.

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