Fluid flow control valve

Details Fluid flow control valve Fluid flow control valve

2007-03-06

2007-03-06

Rivell, John (Department: 3753)

Fluid handling

Systems

Flow path with serial valves and/or closures

C137S550000, C251S149600, C128S202270, C128S205220, C128S205240

Reexamination Certificate

active

11203814

ABSTRACT:
A fluid flow control valve is disclosed. This valve includes a housing which defines a central passageway having fluid inlet and fluid outlet openings. A pressure responsive element is disposed within the passageway for selectively opening and closing the inlet opening to fluid flow in response to pressure exerted thereon at the inlet opening. A mechanism is provided within the passageway for exerting a bias force against the pressure responsive element sufficient to close the inlet opening to fluid flow absent a pre-established level of pressure exerted on the pressure responsive element in opposition to the bias force. Finally, a retainer device is positioned for removably securing the pressure responsive element and bias force exerting mechanism within the passageway.

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