Check valve

Details Check valve Check valve

1977-11-07

1979-10-30

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

13754315, F16K 1506

Patent

active

041724658

ABSTRACT:
A check valve having a semi-spherical valve member movable longitudinally in a generally tubular housing between a closed position engaging a conical valve seat and an open position spaced longitudinally therefrom, the valve member being slidably mounted for such movement on a longitudinally extending support element. The opening in the valve member which receives the support therein has a diameter significantly greater than the diameter of the support element whereby the valve member is pivotal thereon so as to seat properly on the valve seat. The center of the semi-spherical valve member is longitudinally spaced in one direction from the effective center of support thereof at the closed position of the valve member, and is longitudinally spaced in the opposite direction from the effective center of the valve member at the open position of the valve. The valve housing is specially formed to provide a flow path around said valve member which corresponds generally in area to the valve inlet and outlet openings to reduce the pressure loss of the fluid passing through the valve.

REFERENCES:
patent: 1844613 (1932-02-01), Thompson

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