Shutoff valve having a unitary valve body

Details Shutoff valve having a unitary valve body Shutoff valve having a unitary valve body

1992-07-01

1993-08-03

Fox, John C.

Fluid handling

Systems

Flow path with serial valves and/or closures

137315, 1374542, F16L 2900

Patent

active

052320200

ABSTRACT:
A shutoff valve is provided having a body enclosing a chamber that defines a continuous fluid passageway. A plunger resides in the chamber and is slidably positionable between a closed position wherein the fluid passageway is occluded and an open position wherein the fluid passageway enables fluid flow therethrough. A sealing member is also positioned in the passageway, which circumscribes the plunger to effectuate a seal when the plunger is in the closed position. A spring is compressibly mounted in the fluid passageway against the plunger to bias the plunger in the closed position. The chamber is characterized by a series of fluid-communicating sections formed therein which cooperate with a plurality of stages integrally positioned on the plunger to define the manner in which the valve is assembled and operated.

REFERENCES:
patent: 2819914 (1958-01-01), Eitner
patent: 3520331 (1970-07-01), Locke et al.
patent: 4509554 (1985-04-01), Failla

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