Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Control element is fluid pressure sensitive
Patent
1989-05-31
1991-02-05
Noland, Tom
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Control element is fluid pressure sensitive
422116, 422242, 417290, 417297, 2512905, B01J 304
Patent
active
049900765
ABSTRACT:
A pressure control apparatus suitable for controlling pressures in autoclaves permits a plurality of autoclaves to be selectably pressurized from a single pressurizing circuit. The apparatus can be externally controlled to more efficiently multiplex autoclaves to the pressurizing circuit and to more efficiently implement different pressure schedules for the autoclaves. Once a pressure has been set for an autoclave maintained in communication with the main pressurizing circuit, the apparatus automatically monitors the position of the pump piston and resets it from either of its extreme limits of movement to maintain pressure at a desired set point. Corresponding methods are also disclosed.
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PP. 2458 and 2459 of a Halliburton Services brochure dated at least one year prior to May 1989.
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Ehlert Mark
Lynch Michael J.
Surjaatmadja Jim B.
Turner G. Allen
Duzan James R.
Gilbert III E. Harrison
Halliburton Company
McBurney Mark E.
Noland Tom
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