Check-valve construction

Details Check-valve construction Check-valve construction

1979-10-10

1982-09-28

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

137514, F16K 1503

Patent

active

043513581

ABSTRACT:
The invention contemplates a check-valve construction wherein a plurality of at least three generally triangular valve members are independently hinged to the respective base lines of a pyramidal seat configuration, the base lines being in a plane which essentially establishes the upstream end of the valve, and the apex of the pyramid (and, thus, the apex of each valve-member triangle) essentially establishes the downstream end of the valve.

REFERENCES:
patent: 3127148 (1964-03-01), Collar
patent: 3395727 (1968-08-01), Weise et al.
patent: 3412754 (1968-11-01), Schou
patent: 3640306 (1972-02-01), Vogt
patent: 4249567 (1981-02-01), Weiss

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