Inside rose liner for a door lock

Details Inside rose liner for a door lock Inside rose liner for a door lock

2005-03-22

2005-03-22

Estremsky, Gary (Department: 3676)

Closure fasteners

Knob rose plates

C292SDIG053

Reexamination Certificate

active

06869115

ABSTRACT:
A door lock includes a main body having an inside seat and an outside seat. The inside seat includes two diametrically disposed flat surfaces and two arcuate surfaces. An inside rose liner is mounted around the inside seat and includes a central hole. A wall projects from a periphery delimiting the central hole and extends along a direction parallel to a longitudinal axis of the main body. The wall includes two diametrically disposed flat sections respectively engaged with the flat surfaces of the inside seat. The wall further includes two arcuate sections respectively engaged with the arcuate surfaces of the inside seat. Thus, the torque-bearing capacity of the door lock is improved.

REFERENCES:
patent: 470072 (1892-03-01), Ormsby
patent: 4784418 (1988-11-01), Pearson et al.
patent: 4921289 (1990-05-01), Shen
patent: 4930822 (1990-06-01), Shen
patent: 5490700 (1996-02-01), Zuckerman
patent: 5961162 (1999-10-01), Glaser et al.
patent: 6302457 (2001-10-01), Shen
patent: 6364383 (2002-04-01), Shen

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