Locks – Operating mechanism – Using a powered device
Patent
1975-11-13
1978-11-14
Bonck, Rodney H.
Locks
Operating mechanism
Using a powered device
70135, 70277, 292280, E05B 4700
Patent
active
041250087
ABSTRACT:
A unitary self-contained electrically operated lock is provided which includes a latch wheel manually releasably rotatable from a first side of the lock housing by pulling on a handle from a first side and releasably rotatable from a second side of the housing only in response to insertion of a data combination card carrying an appropriate code. The latch wheel is mounted outside the housing on a rotatable shaft extending into the housing. A ratchet wheel mounted inside the lock housing on the rotatable shaft rotates with the latch wheel. A pawl normally engaged with the ratchet wheel allows the latch wheel to rotate into locking engagement with a keeper mounted in a door jamb while preventing the latch wheel from rotating out of engagement with the keeper until the pawl is retracted. A trip plate secured to the handle disengages the pawl from the ratchet wheel whenever the handle is manually retracted. Upon insertion of a correctly coded data combination card, a solenoid or motor mounted within the housing is activated to retract the pawl from engagement with the ratchet wheel.
REFERENCES:
patent: 421567 (1890-02-01), Grah
patent: 848256 (1907-03-01), Maaskant
patent: 2767010 (1956-10-01), Norman
patent: 2793898 (1957-05-01), Roethal
patent: 2870620 (1959-01-01), Allison
patent: 2904988 (1959-09-01), Gaida
patent: 2948561 (1960-08-01), Eatinger
patent: 3733861 (1973-05-01), Lester
patent: 3926021 (1975-12-01), Genest et al.
Genest Leonard J.
Messner Daryle
Bonck Rodney H.
Monitron Industries, Inc.
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