Pressure vessel with improved gasket valve

Details Pressure vessel with improved gasket valve Pressure vessel with improved gasket valve

1989-10-27

1991-03-12

Lacey, David L.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

Control element is fluid pressure sensitive

422117, 422118, 422115, 422295, 422296, 436 1, G05D 1606

Patent

active

049991655

ABSTRACT:
The disclosed pressurized vessel has a door seal which is pressurized by a steam supply. A diaphragm actuated solenoid valve is connected between the steam supply and the door seal. The diaphragm solenoid valve precludes the door seal from depressurizing unless the pressure within the vessel is within a preselected pressure tolerance. Also, a check valve is provided to preclude the door seal from completely depressurizing if the pressure at the steam supply is interrupted.

REFERENCES:
patent: 3694962 (1972-10-01), McDonald et al.
patent: 4426358 (1984-01-01), Johansson
patent: 4752445 (1988-06-01), Zell

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