Lock with improved torsional strength

Details Lock with improved torsional strength Lock with improved torsional strength

1998-12-11

2000-08-08

Dayoan, B.

Closure fasteners

Operators with knobs or handles

E02B 300

Patent

active

060990538

ABSTRACT:
A lock includes an inner handle, an outer handle, and a latch controlled by either handle. A spindle has an end connected to the outer handle. The spindle includes a protrusion engaged with a slit of the outer handle. An outside rose and a catch plate are mounted around the spindle. The catch plate includes a hole with a recessed section for releasably engaging with a tongue plate. A retractor has increased thickness and is engaged with the other end of the spindle.

REFERENCES:
patent: 2795948 (1957-06-01), Rayburn
patent: 2998274 (1961-08-01), Russell
patent: 5074607 (1991-12-01), Lin
patent: 5118152 (1992-06-01), Lin
patent: 5177987 (1993-01-01), Shen
patent: 5284372 (1994-02-01), Lin
patent: 5301526 (1994-04-01), Fann et al.
patent: 5322333 (1994-06-01), Norton, II et al.

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