Safety device for a locking and opening system

Details Safety device for a locking and opening system Safety device for a locking and opening system

1981-12-08

1985-01-22

Bell, Jr., Houston S.

Fluent material handling, with receiver or receiver coacting mea

Filling means with receiver or receiver coacting means

With receiver and supply securing means

49114, 49279, 220200, E05C 706

Patent

active

044945868

ABSTRACT:
The invention relates to a safety device for an interlocking mechanism between two sealed enclosures such as found in biological or nuclear environments and which prevents accidental opening of one or the other of two doors closing off the enclosures, which prevents leakage from the enclosures and which may be readily retrofitted to an existing locking system. The locking system comprises a locking ring (36) rotatable between an inoperative position and a locking position for locking the two enclosures and an operating lever for locking the two doors. The safety device includes two locking mechanisms electrically controlled by four prepositioned detection means on the form of microswitches for locking and unlocking the two locking mechanisms.

REFERENCES:
patent: 3125232 (1964-03-01), Brinkman et al.
patent: 3665958 (1972-05-01), Dunkelus
patent: 3682208 (1972-08-01), Fedi et al.

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