Check valve

Details Check valve Check valve

1991-10-17

1993-01-05

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

1375122, 1375123, 1375125, 137541, F16K 1506

Patent

active

051761718

ABSTRACT:
A check valve includes an outer poppet therein having a central opening therein where the outer poppet is mounted on the internal lip within the body of a valve. The outer poppet is translatable relative to the inner lip and body and an inner poppet is mounted within the central opening of the outer poppet where the inner poppet is also translatable relative to the outer poppet and inner lip. A means for limiting the translation of the outer poppet relative to the internal lip and a means for limiting translation of the inner poppet relative to the internal lip allow the outer and inner poppet to extend between an open position and retracted position to allow improved flow area through the valve.

REFERENCES:
patent: 919036 (1909-04-01), Langer
patent: 976010 (1910-11-01), Thompson
patent: 977377 (1910-11-01), Donnelly
patent: 1031754 (1912-07-01), Westaway
patent: 1109154 (1914-09-01), Thomas
patent: 1748203 (1930-02-01), Brunelle
patent: 3378029 (1968-04-01), Lee
patent: 3572376 (1971-03-01), Pfeifer
patent: 3621874 (1970-08-01), Murphy
patent: 3839741 (1974-10-01), Haller
patent: 4535809 (1985-08-01), Andersson
patent: 4662601 (1987-05-01), Andersson
patent: 4905959 (1990-03-01), Andersson
patent: 4964611 (1990-10-01), Andersson
patent: 4971093 (1990-11-01), Andersson

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