Lock with cam operated mechanism

Details Lock with cam operated mechanism Lock with cam operated mechanism

1994-10-28

1996-10-22

Meyers, Steven N.

Closure fasteners

Bolts

Swinging

292336, 29234116, C05C 306

Patent

active

055669913

ABSTRACT:
A locking mechanism which is mountable in a door assembly including a door and a frame. The locking mechanism includes a latch belt assembly, a drive motor and a cam assembly connected to the latch bolt assembly and the drive motor by a linkage assembly. The cam assembly is driven by the motor and provides a mechanical advantage in operating the linkage assembly and the connected latch bolt. The lock mechanism includes a mechanical latch back feature which retains the latch bolt in a retracted position until the door is closed relative to the frame. Also included are switches coupled to the motor for use in controlling the motor based on the position of the cam.

REFERENCES:
patent: 3211850 (1965-10-01), Toepfer
patent: 3819215 (1974-06-01), Fuss
patent: 4126341 (1978-11-01), Bradstock
patent: 4211443 (1980-07-01), Butts et al.
patent: 4237711 (1980-12-01), Kambic
patent: 4677834 (1987-07-01), Hicks
patent: 4756566 (1988-07-01), Logas
patent: 4881766 (1989-11-01), Schmidt

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