Burglarproof lock

Details Burglarproof lock Burglarproof lock

1989-09-25

1991-01-29

Wolfe, Robert L.

Locks

Operating mechanism

Key

70 17, E05B 1704

Patent

active

049877585

ABSTRACT:
The present invention relates to a lock (3) on the inside of a door, wherein the lock can be actuated from outside the door. The lock is connected to a locking device (14) on the outer side of the door by a coupling rod (12). In order to increase protection against burglaries, the coupling rod (12) is to pass through a channel (22) with which a channel closure jaw (28) is associated. The jaw is supported on the coupling rod (12) and is under spring-load in the direction of closure. Removal of the coupling rod during a burglary attempt results in a closure of the channel with protection of the lock from tampering by the jaw.

REFERENCES:
patent: 1904882 (1933-04-01), Prior
patent: 2874563 (1959-02-01), Sellage
patent: 3263463 (1966-08-01), Duval

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