Electronic components of rotary type

Details Electronic components of rotary type Electronic components of rotary type

1980-11-03

1982-12-07

Albritton, C. L.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338184, 338191, 338197, 338198, 338199, 338200, H01C 1036

Patent

active

043630189

ABSTRACT:
In an electronic component of rotary type comprising a bearing sheath which has a front portion and a rear portion and is to be fixedly mounted on a frame of an electric appliance, an operation shaft disposed in the bearing sheath, a substrate fixed at a rear part of the bearing sheath, a brush holder mounted on an end portion of the operation shaft in a manner to be rotated by rotation of the operation shaft, and at least one sliding contact brush mounted on the brush holder for sliding on a contacting member formed on a surface of the substrate, the improvement is that a central portion of the operation shaft is disposed in the bearing sheath and has an outer diameter smaller than an inner diameter of the bearing sheath, and that the electronic component is free from irregular rotation during the rotation of the operation shaft.

REFERENCES:
patent: 2231540 (1941-02-01), Lodge
patent: 2836686 (1958-05-01), Barden et al.
patent: 2958838 (1960-11-01), Puerner et al.
patent: 3924220 (1975-12-01), Matsui et al.

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