Single unit key activated pin lock

Details Single unit key activated pin lock Single unit key activated pin lock

1990-06-05

1991-10-29

Wolfe, Robert L.

Locks

Special application

For closures

70100, 70360, E05B 6508

Patent

active

050604937

ABSTRACT:
A pin lock device which can be permanently attached to the frame of a sliding curtain shutter type door. The pin lock device has a rigid body with a bore which may be attached to the frame of the shutter type door. A bolt located in the bore is movable between first and second positions in the bore, but cannot be completely withdrawn. The bolt can be immobilized in the locked position in the rigid body, thereby allowing the sliding shutter door to be locked, and is restrained from being fully withdrawn in the unlocked position to allow the bolt to be safe from loss or tampering when the sliding shutter door is opened.

REFERENCES:
patent: 3071958 (1963-01-01), Russo
patent: 3078704 (1963-02-01), Rifkin
patent: 3345838 (1967-10-01), Russell
patent: 3455128 (1969-07-01), Tenkoff
patent: 3668906 (1972-06-01), Josephart
patent: 3726115 (1973-04-01), Wellekens
patent: 3744283 (1973-07-01), Schmidt
patent: 4565080 (1986-01-01), Kincaid
patent: 4768360 (1988-09-01), Foshee

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