Manual and electrical mechanism for unlocking a bolt

Details Manual and electrical mechanism for unlocking a bolt Manual and electrical mechanism for unlocking a bolt

1989-06-13

1990-12-11

Wolfe, Robert L.

Closure fasteners

Bolts

Emergency operating means

292 21, 292144, E05B 1502

Patent

active

049764764

ABSTRACT:
An improved mechanism of simplified smaller construction for independently manually, as by a pushbar, or electrically, as by remote control, unlocking a latch bolt normally urged to locking position by a spring. The mechanism is especially adapted to be incorporated in a panic exit or fire door latch.

REFERENCES:
patent: 3767238 (1973-10-01), Zavadzki
patent: 3854763 (1974-12-01), Zawadzki
patent: 4167280 (1979-09-01), Godec
patent: 4785286 (1988-11-01), Martin

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