Automatically locking crossbolt deadlock

Details Automatically locking crossbolt deadlock Automatically locking crossbolt deadlock

1976-06-24

1977-12-20

Moore, Richard E.

Closure fasteners

Trippers

Sliding bolt, swinging detent

E05C 116

Patent

active

040637654

ABSTRACT:
A crossbolt deadlock having a crossbolt yieldingly urged toward a locking position relative to a cooperating strike. An actuator lever releasably holds the crossbolt in an unlocking position and has a portion engaging the strike, upon closing of the door on which the deadlock is mounted, to automatically release the crossbolt for movement into locking engagement with the strike. A spring yieldingly urges the actuator lever toward holding engagement with the crossbolt. A lock member is movable to positively lock the crossbolt selectively in locking or unlocking positions.

REFERENCES:
patent: 1162406 (1915-11-01), Segal
patent: 1330693 (1920-02-01), Fisher
patent: 2158088 (1939-05-01), Segal
patent: 2279591 (1942-04-01), Heyer
patent: 2293363 (1942-08-01), Schell
patent: 2344451 (1944-03-01), Pankhurst
patent: 2660752 (1953-12-01), Carcereny
patent: 2995394 (1961-08-01), Browning

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