Rotary knob for electrical system

Details Rotary knob for electrical system Rotary knob for electrical system

2011-01-18

2011-01-18

Luong, Vinh T. (Department: 3656)

Machine element or mechanism

Control lever and linkage systems

Elements

C074S527000, C074S569000, C200S00600C, C200S01600R, C200S325000, C200S336000

Reexamination Certificate

active

07870810

ABSTRACT:
A rotary knob for an electrical system includes a body containing a rotary maneuvering member which actuates a cam-driving part and bears one or more electrical units. A cup is defined between an outer cylindrical flange of the body and an inner cylindrical sleeve, and contains a spring either of a helical type for urging a sliding ring separate from the driving part, or of a torsion type to return the maneuvering member. The ring provides a sensitivity function. The cylindrical sleeve defines in a central opening thereof a centering seat of the shank of the maneuvering member.

REFERENCES:
patent: 3247349 (1966-04-01), Duncan
patent: 3517570 (1970-06-01), Kolb
patent: 3770926 (1973-11-01), Wanner
patent: 3919506 (1975-11-01), Kellogg
patent: 5862715 (1999-01-01), Lemire
patent: 6072128 (2000-06-01), Ansorge et al.
patent: 2008/0141744 (2008-06-01), Desaphie et al.
patent: 34 12 517 (1985-10-01), None
patent: 35 41 390 (1986-08-01), None
patent: 2 061 317 (1971-06-01), None
patent: 2 102 206 (1983-01-01), None
U.S. Appl. No. 11/815,774, filed Aug. 8, 2007, Thizon, et al.

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