Non-return valve

Details Non-return valve Non-return valve

1977-10-05

1980-05-20

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

F16K 1506

Patent

active

042034663

ABSTRACT:
A non-return valve having a guided obturator, guided at a stem portion and at a head portion within a guiding member situated within a chamber. The chamber has a shoulder portion which acts as a seat for the obturator head, and supports an annular flexible seal. The annular flexible seal is L-shaped, with a flexible lip which conforms to the contour of the edge of the obturator head. The obturator stem has a cruciform cross section.

REFERENCES:
patent: 558034 (1896-04-01), Brown et al.
patent: 937773 (1909-10-01), Cunning
patent: 1890223 (1932-12-01), Kilzer
patent: 1984328 (1934-12-01), Bechtold
patent: 2673062 (1954-03-01), Cornelius
patent: 2943639 (1960-07-01), Smith
patent: 2949928 (1960-08-01), Hobson
patent: 3189037 (1965-06-01), Callejo
patent: 3474808 (1969-10-01), Elliott

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