Electrically and manually key-controlled lock

Details Electrically and manually key-controlled lock Electrically and manually key-controlled lock

1993-03-30

1995-04-11

Cuomo, Peter M.

Locks

Operating mechanism

Using a powered device

292144, 70118, F05B 4700

Patent

active

054047374

ABSTRACT:
A lock assembly has a main lock housing, a bolt movable in the housing between a locked position projecting from the housing and an unlocked position largely recessed in the housing and a double cylinder having an outside key-operable part rotatable by an appropriately bitted key and an inside part rotatable by the outside part and also rotatable independently of the outside part. The inside part carries an actuator movable on rotation of either part. A gear linkage between the actuator and the bolt displaces the bolt. A secondary housing is provided adjacent the lock housing and an actuator element coupled and movable with the linkage extends from the lock housing to the secondary housing. The element moves relative to the secondary housing on movement of the bolt between its positions. An electric motor on the secondary housing connected to the element is energizable for displacing same and thereby also displacing the bolt between its positions. A key-operated switch connected to the electric motor energizes this motor to allow electrical as well as manual actuation of the locking same.

REFERENCES:
patent: 656011 (1900-08-01), Carleton
patent: 3933382 (1976-01-01), Counts et al.
patent: 4674781 (1987-06-01), Reece et al.
patent: 5148691 (1992-09-01), Wallden

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