Sabotage-proof lock device with elbow-shaped latches

Details Sabotage-proof lock device with elbow-shaped latches Sabotage-proof lock device with elbow-shaped latches

1986-08-13

1989-01-24

Moore, Richard E.

Closure fasteners

Bolts

Multiple

E05C 502

Patent

active

047997184

ABSTRACT:
L-shaped latches are guided by elbow-shaped recess formations in a base to prevent sabotage by a door picker or burglar. Through a transmission mechanism, the L-shaped latches are inserted into respective latch sockets furnished on the door jamb.

REFERENCES:
patent: 609197 (1898-08-01), Fries
patent: 914424 (1909-03-01), Kelly
patent: 1264814 (1918-04-01), Kornstein
patent: 1496172 (1924-06-01), Rogers
patent: 1915395 (1933-06-01), Welling
patent: 2047464 (1936-07-01), Flacksborth
patent: 4635980 (1987-01-01), DeLuca

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