Cartridge valve with triple sequential seal

Details Cartridge valve with triple sequential seal Cartridge valve with triple sequential seal

1999-06-15

2000-08-22

Ferensic, Denise L.

Fluid handling

Line condition change responsive valves

Direct response valves

13753315, 137539, F16K 1504

Patent

active

061056103

ABSTRACT:
A valve includes a valve body including a recess therein, a valve element movably disposed in the recess and a seal member disposed in the recess. The seal member has first, second and third separate and distinct sealing surfaces which are engageable by the valve element in response to fluid pressure in the recess.

REFERENCES:
patent: 2676782 (1954-04-01), Bostock et al.
patent: 3009476 (1961-11-01), Usab
patent: 3091254 (1963-05-01), Kilayko
patent: 3802807 (1974-04-01), Kilayko
patent: 4197875 (1980-04-01), Schieferstein et al.
patent: 4474208 (1984-10-01), Looney
patent: 4687019 (1987-08-01), Mayfield
patent: 4781213 (1988-11-01), Kilayko
patent: 4932434 (1990-06-01), Taylor
patent: 5046645 (1991-09-01), Hagan et al.
patent: 5383648 (1995-01-01), Pipinias

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