Shutoff valve assembly

Details Shutoff valve assembly Shutoff valve assembly

1989-03-13

1990-06-19

Chambers, A. Michael

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

251149, 604249, 604256, 285308, F16L 3728

Patent

active

049346555

ABSTRACT:
A shutoff valve (26) including a plunger (28) slidably mounted in a housing (30). The plunger (28) being slidable between an open and a closed position. The plunger (28) having a front end and a back end and defining a path flow of fluid therethrough. A back end (32) of the plunger (28) having inclined surfaces (50). Projections (34) extend from the back end (32) of the housing (30) and cooperate with the inclined surfaces (50) to bias the plunger (20) into the closed position.

REFERENCES:
patent: 2318965 (1943-05-01), Parker et al.
patent: 3334860 (1967-08-01), Bolton, Jr.
patent: 4193576 (1980-03-01), White
patent: 4421296 (1983-12-01), Stephens
patent: 4436125 (1984-03-01), Blenkush
patent: 4500118 (1985-02-01), Blenkush
patent: 4541457 (1985-09-01), Blenkush
patent: 4630847 (1986-12-01), Blenkush
patent: 4700744 (1987-10-01), Rutter et al.
patent: 4703957 (1987-11-01), Blenkush
Colder Products Company Catalogue titled "Quick Coupling for Plastic Tubing," pp. 1-36, Exhibit A, 1989.
"Connect or Disconnect Fluid Lines at Full Operating Pressures", from Imo Industries, Inc., Aeroproducts Division, 4223 Monticello Blvd., Cleveland, OH 44121, 1 page advertisement, 1989.

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