Door lock with automatic unlocking means

Details Door lock with automatic unlocking means Door lock with automatic unlocking means

1974-11-25

1976-05-25

Craig, Jr., Albert G.

Closure fasteners

Bolts

Emergency operating means

292181, 2923363, E05C 1502

Patent

active

039588203

ABSTRACT:
A lock mechanism including a bolt spring biased toward an unlocked position. Bolt release means including a lever movably mounted on a lock base retaining the spring biased bolt in a locked position. Contact means carried by said lever responsive to hand motion resulting in lever movement and release of the bolt to provide for automatic door unlocking.

REFERENCES:
patent: 1394635 (1921-10-01), Maturo
patent: 2714030 (1955-07-01), Gardner
patent: 2828151 (1958-03-01), Brotman et al.
patent: 3423118 (1969-01-01), Waldo

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