Tilting o-ring check valve

Details Tilting o-ring check valve Tilting o-ring check valve

1996-10-24

1998-06-09

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

137860, 1375124, F16R 1514

Patent

active

057621039

ABSTRACT:
A check valve comprising of an inlet body portion, an outlet body portion, and a resilient o-ring. The o-ring being the only moveable part is slightly stretched and sealingly contacts the exterior corner edges of an annular groove. The annular groove corner edges are concentrically aligned and of distinctly different diameters. The inside diameter area of the o-ring communicates with an inlet passage through radial holes. Inlet pressure forces the o-ring to "tilt" off of the larger diameter groove edge by pivoting on the smaller diameter groove edge, thereby allowing fluid to flow from the inlet passage to an outlet passage.

REFERENCES:
patent: 1366151 (1921-01-01), Astrom
patent: 2671466 (1954-03-01), Conrad
patent: 3154486 (1964-10-01), Weaver
patent: 3298394 (1967-01-01), Chorkey
patent: 3363644 (1968-01-01), Malec
patent: 3511271 (1970-05-01), Pollinger et al.
patent: 3857405 (1974-12-01), Heideman
patent: 4214607 (1980-07-01), Bouteille
patent: 4237935 (1980-12-01), Delmonte et al.
patent: 4549565 (1985-10-01), Short, III
patent: 4964423 (1990-10-01), Gausman et al.

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