Motor driven lock control

Details Motor driven lock control Motor driven lock control

1987-08-20

1989-03-07

Moore, Richard E.

Closure fasteners

Bolts

Sliding

292359, E05C 2102

Patent

active

048100145

ABSTRACT:
The knob spindle of a self contained electrically controlled door lock is locked and unlocked by a unidirectional miniature electric motor. The motor drives a lock pawl to and from locking position through cyclically operable mechanism including an energy storing spring. The mechanism invariably operates through a cycle and, if the pawl is prevented from moving, energy will be stored in the spring to subsequently move the pawl, thereby preventing stalling of the motor and undue drain on the batteries.

REFERENCES:
patent: 4135377 (1979-01-01), Kleefeldt et al.
patent: 4390197 (1983-06-01), Butts
patent: 4736970 (1988-04-01), McGourty et al.

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