Door lock protector

Details Door lock protector Door lock protector

1975-02-24

1976-02-03

Moore, Richard E.

Closure fasteners

Extension link

Chain

E05C 1736

Patent

active

039360857

ABSTRACT:
A lock protector for wooden doors equipped with both the usual bolt or latch lock and the common safety chain, consisting of a strong metal door plate of U-form adapted to bridge the free edge portion of a door at the lock and apertured to pass the lock bolt, and a chain plate adapted to be strongly affixed to the door frame, the safety chain being permanently affixed to the door plate and detachably connected to the chain plate. Strong affixation of the plates to the door and door frame resists tearing out the chain connections by kicks, blows, or pressure applied to the door, and the form of the door plate offers similar protection to the bolt assembly. Additionally, the chain plate is specially formed to prevent the common type of break-in known as "credit card" entry.

REFERENCES:
patent: 1924627 (1933-08-01), Segal
patent: 2683054 (1954-07-01), Earman
patent: 3764173 (1973-10-01), Griffith
patent: 3809418 (1974-05-01), Canfield

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