Fluid control valve

Details Fluid control valve Fluid control valve

2005-03-22

2005-03-22

Look, Edward K. (Department: 3745)

Motors: expansible chamber type

With motive fluid valve

Contracting chamber exhaust valve controlled by expanding...

C137S596200, C137S543130

Reexamination Certificate

active

06868772

ABSTRACT:
A control valve is provided which may be incorporated within a fluid operating system. The valve has an internally-mounted check element which allows the valve to provide a fail-safe mode for a downstream device in fluid communication with the control valve. The invention includes the control valve, the valve in combination with a downstream device, and a method whereby the flow of pressurized fluid is controlled by operation of the control valve.

REFERENCES:
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patent: 2483312 (1949-09-01), Clay
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patent: 4844114 (1989-07-01), Moberg et al.
patent: 5375418 (1994-12-01), Shelhart et al.
patent: 6098647 (2000-08-01), Haussler et al.
patent: 6142037 (2000-11-01), Botosan et al.
patent: 55097573 (1980-07-01), None

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