Control apparatus and method for controlling fluid flows and pre

Details Control apparatus and method for controlling fluid flows and pre Control apparatus and method for controlling fluid flows and pre

1992-07-02

1993-03-02

Cohan, Alan

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

137486, 137487, 1374875, G05D 706

Patent

active

051900688

ABSTRACT:
Control apparatus and method for controlling the flow of fluid across a valve includes a differential pressure measurement across the valve and a flow meter for measuring the flow, and the information from the differential pressure and from the flow meter is compared to predetermined parameters, and in response to the comparison, the valve is modulated to provide the desired flow.

REFERENCES:
patent: Re29383 (1977-09-01), Gallatin
patent: 3055389 (1962-09-01), Brunner
patent: 3757808 (1973-09-01), Peterson
patent: 3769998 (1973-11-01), Avant
patent: 3930518 (1976-01-01), Fuller
patent: 4000754 (1977-01-01), Risk
patent: 4026321 (1977-05-01), Kahoe
patent: 4253480 (1981-03-01), Kessel
patent: 4277832 (1981-07-01), Wong
patent: 5129418 (1992-07-01), Shimomura

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