Locks – Operating mechanism – Key
Patent
1996-06-19
1998-02-03
Lindsey, Rodney M.
Locks
Operating mechanism
Key
70417, 70449, E05B 908
Patent
active
057132313
ABSTRACT:
An auxiliary lock includes a dead bolt, an interior lock assembly and an exterior lock assembly respectively mounted on two sides of a door. Each of the interior lock assembly and the exterior lock assembly includes a housing, a positioning seat, a lock core seat, and a lock core. A pair of bolts is provided to secure the interior lock assembly and the exterior lock assembly together. A protective cover is mounted to an enlarged end face of the lock core seat of the inner lock assembly to shield bolt heads of the bolts.
REFERENCES:
patent: 4073172 (1978-02-01), Schlage
patent: 5010749 (1991-04-01), Lin
patent: 5186030 (1993-02-01), Lin
patent: 5216910 (1993-06-01), Lin
Lindsey Rodney M.
Pham Tuyet-Phuong
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