Deadlatch assembly

Details Deadlatch assembly Deadlatch assembly

1991-02-20

1992-03-31

Moore, Richard E.

Closure fasteners

Bolts

Sliding

292153, E05C 106

Patent

active

051001845

ABSTRACT:
A deadlatch assembly of the type that provides remote operation to control traffic during and after business hours in a building. The deadlatch assembly includes a solenoid actuator for moving the deadlatch cam to its unblocking position when the auxiliary bolt is retracted and the door closed. A ramp in the strike plate and a beveled latch bolt facilitates opening of the door without the need for an electric strike.

REFERENCES:
patent: 2117715 (1938-05-01), Godfried
patent: 4099752 (1978-07-01), Geringer
patent: 4434635 (1984-03-01), Borgato
patent: 4739638 (1988-04-01), Lin
patent: 4865367 (1989-09-01), Choi
Assa Says "Halt" Locksmith Ledger, vol. 45, No. 11, Oct. 1985, p. 17, 5 sheets.
"Heavy Duty Deadlatch Series" Adams Rite Mfg. Co., 4710 1977, BHMA Type E 8231 2 Sheets.

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