Security lock

Details Security lock Security lock

1997-08-19

1999-09-21

Barrett, Suzanne Dino

Locks

Operating mechanism

Key

70420, 70424, E05B 1516

Patent

active

059539437

ABSTRACT:
A high security lock employs a key plug rotatably mounted within a lock housing. Restraining means selectively prevents relative motion between the key plug and lock housing. The key plug is operatively linked to a latch operating bar. The latch operating bar controls the position of a securing latch. A bracing means prevents access to the latch operating bar.

REFERENCES:
patent: 1228445 (1917-06-01), Janes
patent: 1422497 (1922-07-01), Thompson
patent: 1422515 (1922-07-01), Augenbraun
patent: 1432326 (1922-10-01), Freysinger
patent: 1484830 (1924-02-01), Hurd
patent: 1662487 (1928-03-01), Briggs
patent: 4338806 (1982-07-01), Cox
patent: 4648255 (1987-03-01), Gartner
patent: 5713231 (1998-02-01), Shen

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