Swing check valve with hinge pin retainer

Details Swing check valve with hinge pin retainer Swing check valve with hinge pin retainer

1988-06-27

1990-03-06

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

1375157, 1375278, F16K 1503

Patent

active

049057286

ABSTRACT:
A swing check valve where the opposite end portions of the hinge pin of the disc are held in hinge pin recesses by an annular wall in the valve body. The wall in the valve body is sufficiently sized that the valve disc can swing through the wall through an arc of substantially 90.degree. between in its open and closed positions. The wall may be formed as a part of the valve body or as a separate retainer ring secured in the valve.

REFERENCES:
patent: 2532067 (1950-11-01), La Bour
patent: 3565107 (1971-02-01), Bunch
patent: 3720228 (1973-04-01), Wheatley, Jr.
patent: 3817277 (1974-06-01), Wheatley
patent: 3933173 (1976-01-01), Kajita
patent: 4201241 (1980-05-01), Schertler
patent: 4230150 (1980-10-01), Scaramucci
patent: 4274436 (1981-06-01), Smith
patent: 4586534 (1986-05-01), McNeely
patent: 4605041 (1986-08-01), Teumer

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