Front-loaded knob assembly

Details Front-loaded knob assembly Front-loaded knob assembly

1987-04-20

1988-08-23

Smith, Gary L.

Locks

Special application

For control and machine elements

70207, 70209, 70DIG39, E05B 1310

Patent

active

047651636

ABSTRACT:
The front half of the knob shell and the cylinder are removable from the rest of the lockset without special skill or tools so that cylinder may be replaced or rekeyed. A radial retainer pin in the cylinder assembly extends outward into the lockset shank to hold the cylinder in place. When key is turned counterclockwise, the retainer pin may be depressed inward into a radial recess in the cylinder plug so that cylinder and knob front can be removed from the lockset. A recess in the plug has a spring-biased cover and forces the retainer pin back outward when the pin is released.

REFERENCES:
patent: 2008668 (1935-07-01), Gold
patent: 2027731 (1936-01-01), Holpfer
patent: 2079583 (1937-05-01), Brauning
patent: 2719424 (1955-10-01), Rayburn
patent: 3190684 (1965-06-01), Russell
patent: 3196645 (1965-07-01), Russell
patent: 3212305 (1965-10-01), Russell et al.
patent: 3308641 (1967-03-01), Russell et al.
patent: 3955387 (1976-05-01), Best et al.
patent: 4320637 (1982-03-01), Wu
patent: 4672829 (1987-06-01), Gater et al.

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