Check valve with a low inertia moving part for low or high press

Details Check valve with a low inertia moving part for low or high press Check valve with a low inertia moving part for low or high press

1997-04-07

1999-11-02

Ferensic, Denise L.

Fluid handling

Line condition change responsive valves

Direct response valves

137519, F16K 1500

Patent

active

059751304

ABSTRACT:
A check valve having an elongated body with bore therethrough, the bore having a small diameter section abutting a downstream frustoconical section with an increasing diameter, a ball positioned downstream of the small diameter section and movable in the frustoconical section and a pin blocking the bore to keep the ball at or near the frustoconical section and near to the small section, such that a reversal in fluid flow will seat the ball within the frustoconical section and block the bore.

REFERENCES:
patent: 2316495 (1943-04-01), White
patent: 2328014 (1943-08-01), Heigis
patent: 3113587 (1963-12-01), Hendley
patent: 3466819 (1969-09-01), Giger
patent: 3534768 (1970-10-01), Powell
patent: 3776258 (1973-12-01), Dockins, Jr.
patent: 3861415 (1975-01-01), Larsen
patent: 4155374 (1979-05-01), Diehl
patent: 4756335 (1988-07-01), Kim
patent: 5086613 (1992-02-01), Fox et al.
"CP" Series One-Piece, Pipe Ended Check Valves Nupro Company Brochure Mar. 1994.
"50" Series Lift Check Valves Nupro Company, Mar. 1994 Brochure.

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