Door lock

Details Door lock Door lock

1996-05-20

1997-07-29

Gall, Lloyd A.

Locks

Special application

For closures

70149, 70223, 70224, 70422, E05B 1310

Patent

active

056512805

ABSTRACT:
An improved door lock is disclosed whereby the application of excessive force on the door handle will not cause a malfunction of the door lock and will not cause damage to the internal working features of the door lock. The door lock includes an outer rose spindle assembly, having an inner and an outer spindle, wherein the two spindle portions are releasably connected by a plurality of complementary pins and dints. Upon the application of excessive force on the door handle, the pins are released from the dints such that the force is not further transmitted to sequential features of the lock body.

REFERENCES:
patent: 1516152 (1924-11-01), Dumont
patent: 2497328 (1950-02-01), Smith et al.
patent: 2729090 (1956-01-01), Floraday
patent: 3922896 (1975-12-01), Kagoura
patent: 4773240 (1988-09-01), Foshee
patent: 5040391 (1991-08-01), Lin
patent: 5040652 (1991-08-01), Fish et al.
patent: 5263348 (1993-11-01), Wittwer
patent: 5447047 (1995-09-01), Lin

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