Door lock

Details Door lock Door lock

2005-02-15

2005-02-15

Gall, Lloyd A. (Department: 3676)

Locks

Special application

For closures

C070S149000, C070S218000, C070S223000, C292S142000, C292SDIG002

Reexamination Certificate

active

06854308

ABSTRACT:
A door lock comprises a housing having two plates to be mounted on opposite sides of a door respectively and a position base at between the plates. A driving mechanism has two handles pivoted on the plates respectively for swing, two pawls provided on the handles respectively having ends thereof extended inwards at between the plates and two arms received in the housing and pivoted thereon to be driven by the pawls respectively. A driven mechanism has gears provided on the position base to be driven for rotation by the arms and a sliding block driven by the gears for reciprocation along a predetermined orientation. A locking mechanism has a button and a pressing plate. The button is pressed to make the pressing plate moving the gears away from the pawl, so that the gears will not be driven by the pawl.

REFERENCES:
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patent: 6178795 (2001-01-01), Hsueh
patent: 6217087 (2001-04-01), Fuller
patent: 6327880 (2001-12-01), Liang
patent: 6585302 (2003-07-01), Lin

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