Knob retainer blocker mechanism

Details Knob retainer blocker mechanism Knob retainer blocker mechanism

1982-01-08

1984-03-20

Moore, Richard E.

Closure fasteners

Knob-attaching devices

Sliding

29216916, E05C 2100

Patent

active

044376952

ABSTRACT:
A door lock mechanism in which the outside knob is seamed against knob retainer, the retainer is diametrically slidable in the knob sleeve and has a specially shaped opening which defines a thrust-receiving edge for engagement by a spring which straddles a central area of the opening, and which has side borders which project toward each other and define blocker engaging surfaces between the legs of the spring. In a cylinder lock, a blocker plunger is preferably carried by a standard type bushing slidable in a standard supplemental cam sleeve, and the plunger is supported close to the retainer by the end wall of such cam sleeve. In a mortise lock, the plunger is similarly supported close to the retainer by a bushing in the knob sleeve.

REFERENCES:
patent: 2062765 (1936-12-01), Schlage
patent: 2517240 (1950-08-01), Roberts
patent: 2814194 (1957-11-01), North et al.
patent: 3026136 (1962-03-01), Russell et al.
patent: 3779590 (1973-12-01), Sanders et al.
patent: 3955387 (1976-05-01), Best et al.
Drawings and Abstract of application Ser. No. 326,483, filed 12/2/81.

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