Spring locking and release apparatus for knobs and knob-like str

Details Spring locking and release apparatus for knobs and knob-like str Spring locking and release apparatus for knobs and knob-like str

1995-02-27

1998-06-16

Marmor, Charles A.

Machine element or mechanism

Control lever and linkage systems

Elements

16121, 16DIG40, 403229, G05G 112

Patent

active

057654492

ABSTRACT:
A pair of coiled springs are mounted in tandem in a housing with their adjacent ends extending radially for retention in a housing permitting slight radial movement of the adjacent ends. The outer ends of the springs extend radially and are axially and circumferentially spaced apart and retained in the housing for slight circumferential movement. The outer ends of the spring are moved by tensioning them in opposite directions to increase the inner diameter of the annulus formed by the springs to receive a shaft upon which the springs tighten when the spring ends are released from tension.

REFERENCES:
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patent: 3528315 (1970-09-01), Marquis
patent: 3572284 (1971-03-01), Rattan
patent: 3709339 (1973-01-01), Austin et al.
patent: 3887963 (1975-06-01), Harmon et al.
patent: 4372432 (1983-02-01), Waine et al.
patent: 4869357 (1989-09-01), Batchelder
patent: 4955253 (1990-09-01), Sakai et al.
patent: 4984931 (1991-01-01), Struthers et al.
patent: 5083477 (1992-01-01), Geil
patent: 5217438 (1993-06-01), Davis et al.
patent: 5273229 (1993-12-01), Komatsu

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