Pressure vessel interlock

Details Pressure vessel interlock Pressure vessel interlock

1983-04-12

1984-12-04

Pollard, Steven M.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

220314, B65D 4500

Patent

active

044859368

ABSTRACT:
An improved pressure-activated interlock system for a pressure vessel such as a pressure fryer, the interlock system includes a safety lock which cooperates with a latching mechanism to prevent opening of the pressure vessel while potentially hazardous pressure levels exist within the vessel. The safety lock includes a pin and associated solenoid actuator mounted on an arm which both mounts the latching mechanism and also serves to lift the lid of the pressure vessel. The existence of pressure conditions of a given level within the pressure vessel causes the solenoid to force the pin into engagement with one of a plurality of spaced radial slots formed in a hub portion of the latching mechanism, thereby preventing operation of the latching mechanism and thus opening of the pressure vessel. The solenoid is actuated by means of a pressure switch which directly senses the pressure within the pressure vessel.

REFERENCES:
patent: 188395 (1877-03-01), Merrell et al.
patent: 1109828 (1914-09-01), Goff
patent: 2917200 (1959-12-01), Phelan et al.
patent: 3235124 (1966-02-01), Kuever
patent: 3976218 (1976-08-01), Stoermer
patent: 4135640 (1979-01-01), MacQuilkin et al.
patent: 4325491 (1982-04-01), Barnhill

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