Electronically controlled back pressure regulator

Details Electronically controlled back pressure regulator Electronically controlled back pressure regulator

2007-08-21

2007-08-21

Krishnamurthy, Ramesh (Department: 3753)

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

C137S014000, C137S613000, C073S023360, C073S023420, C096S102000

Reexamination Certificate

active

10871930

ABSTRACT:
An electronically controlled back pressure regulator comprises an analysis device having a vent coupled to the analysis device through a vent path, a pressure sensor coupled to the vent path, a proportional valve coupled to the vent path, the proportional valve configured to controllably alter pressure in the analysis device, and an electronically controlled closed-loop controller configured to control a flow through the vent based on a signal from the pressure sensor and an electronically controlled pressure setpoint.

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Search Report Dated: Aug. 17, 2005.

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