Auxiliary lock with an anti-breakage device

Details Auxiliary lock with an anti-breakage device Auxiliary lock with an anti-breakage device

1992-09-02

1993-06-08

Gall, Lloyd A.

Locks

Operating mechanism

Key

70417, 70449, 70452, E05B 6300

Patent

active

052169103

ABSTRACT:
An auxiliary lock with an anti-breakage device having a seat combined with a base and an inner ring covered with an outer ring, a latch unit being deposited in the housing and having a recessed opening in an outer end for a reinforcing plate to fit therein and then a face plate sealing up the reinforcing plate to protect the latch unit from breakage by illegal attempt.

REFERENCES:
patent: 2126391 (1938-08-01), Jacobi
patent: 2487803 (1949-11-01), Heimann
patent: 3404549 (1968-10-01), Best
patent: 3514983 (1970-06-01), Krook et al.
patent: 3990277 (1976-11-01), Mullich
patent: 4073172 (1978-02-01), Schlage
patent: 4129019 (1978-12-01), Urdal
patent: 4183563 (1980-01-01), Stevens
patent: 4338804 (1982-07-01), Solovieff
patent: 4418552 (1983-12-01), Nolin
patent: 4587816 (1986-05-01), Garcia
patent: 4679418 (1987-07-01), Allen
patent: 4709565 (1987-12-01), Lin
patent: 4841754 (1989-06-01), Jones

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