Door latch

Details Door latch Door latch

1983-02-15

1988-11-15

Gall, Lloyd A.

Closure fasteners

Keepers

With movable dog, catch or striker

292DIG30, E05B 1502

Patent

active

047844167

ABSTRACT:
The lock button on a door latch is slidable in a horizontal direction between a retracted unlocking position and an extended locking position wherein it blocks a latch hook release member from unlatching the latch, prevents inadvertent locking of the door and extends alongside a strike shoulder on the associated door jamb to provide a secondary latch.

REFERENCES:
patent: 3188840 (1965-06-01), Wartian
patent: 3333879 (1967-08-01), Quinn
patent: 3872696 (1975-03-01), Geringer
patent: 3936084 (1976-02-01), Orr

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