Lock deadbolt protector

Details Lock deadbolt protector Lock deadbolt protector

1988-10-06

1989-10-03

Wolfe, Robert L.

Locks

Special application

For closures

29216913, 292 33, E05B 5900

Patent

active

048708410

ABSTRACT:
Mortise lock has a guardbolt which, when depressed, moves a hooked lever inside the lock housing from a first position in which it blocks operation of the deadbolt operator, to a second position in which it clears the deadbolt operator and permits it to operate. This protects against extension of the deadbolt unless the door is closed.

REFERENCES:
patent: Re26677 (1969-10-01), Russell
patent: 1663572 (1928-03-01), Stuart

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