Transmission apparatus for holding a lock core of a...

Details Transmission apparatus for holding a lock core of a... Transmission apparatus for holding a lock core of a...

2005-04-26

2005-04-26

Stodola, Daniel P. (Department: 3676)

Locks

Operating mechanism

Key

C070S372000, C070S449000

Reexamination Certificate

active

06883356

ABSTRACT:
A transmission apparatus to hold a lock core of a supplemental lock includes an inner housing, a lock coupler, a latch bolt coupler, a restitution element and a cover. The inner housing has a lock core chamber. The lock coupler is rotatably mounted in the lock core chamber and includes a rotatable outer disk coupler and two lock coupling arms. The outer disk coupler has a flat edge. The lock coupling arms connect to the lock core that rotates the outer disk coupler. The latch bolt coupler is rotated by the lock coupler and includes a latch coupling arm and a longitudinal tab. The restitution element is mounted around the latch coupling arm. The cover is attached to the rear of the inner housing. Consequently, the flat edge abuts the longitudinal tab that rotates the latch coupling arm when the outer disk coupler is rotated.

REFERENCES:
patent: 437939 (1890-10-01), Sargent
patent: 1707643 (1929-04-01), Segal
patent: 3286773 (1966-11-01), Russell et al.
patent: 3404549 (1968-10-01), Best
patent: 3541820 (1970-11-01), Best
patent: 4254648 (1981-03-01), Dietrich
patent: 5229747 (1993-07-01), Zhao
patent: 5233851 (1993-08-01), Florian
patent: 5884512 (1999-03-01), Wayne
patent: 6122943 (2000-09-01), DaWalt et al.

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