Fail-safe device for a lid of a pressure vessel

Details Fail-safe device for a lid of a pressure vessel Fail-safe device for a lid of a pressure vessel

1982-04-28

1984-01-17

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

Control element is fluid pressure sensitive

49394, 49449, 422114, 422116, 422117, 422118, 422296, A61L 206, G05B 900, G05D 1600

Patent

active

044263589

ABSTRACT:
A fail-safe device for a pressure vessel includes a blocking device for a lid thereof, which blocking device is locked by means of a first locking device sensing the internal pressure in the vessel. This device in its turn is provided with a second locking device which works independently by sensing pressure or temperature inside the vessel and locks the first locking device in its locked position whenever pressure or temperature is dangerously high inside the vessel. The object is to assure a safe closing of the lid which is both foolproof and fail-safe.

REFERENCES:
patent: 2112639 (1930-03-01), Underwood
patent: 3454352 (1969-07-01), Lamboy et al.
patent: 3574529 (1971-04-01), Larro
patent: 3876385 (1975-04-01), Markus et al.
patent: 3944387 (1976-03-01), Schreckendgust
patent: 4256701 (1981-03-01), Johansson
patent: 4309381 (1982-01-01), Chamberlain et al.

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