Latch bolt mechanism

Closure fasteners – Bolts – Sliding

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Details

E05C 116

Patent

active

041242386

ABSTRACT:
This invention relates to a door lock, and particularly to a lock whose latch bolt extends beyond what is considered normal extension for a door lock. This invented lock not only fastens the door closed, but it also has a second function; namely, to act as a dead lock.

REFERENCES:
patent: 1220939 (1917-03-01), Boch
patent: 2958553 (1960-11-01), Phillips
patent: 3339963 (1967-09-01), Chambers
patent: 3353858 (1967-11-01), Neary et al.
patent: 3891255 (1975-06-01), Millett
patent: 3912309 (1975-10-01), Fischer et al.
patent: 3933380 (1976-01-01), Wellekens

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