Check valve

Details Check valve Check valve

1980-09-24

1982-12-28

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

137544, F16K 1504

Patent

active

043656480

ABSTRACT:
A check valve having a plastic cylindrical body having an axial inlet and outlet, longitudinal guide ribs on the inside of the body, a spring member urging a valve ball against the inlet opening, a guide pin inside of the spring member, and a screen member covering the inlet opening.

REFERENCES:
patent: 950533 (1910-03-01), Hilliard
patent: 1626721 (1927-05-01), Cohn
patent: 3827255 (1974-08-01), Kish
patent: 4014365 (1977-03-01), Peterson et al.
patent: 4286622 (1981-09-01), Ninomiya

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