Variable resistor

Details Variable resistor Variable resistor

1997-11-28

2000-01-18

Donovan, Lincoln

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338162, 338163, H01C 1030

Patent

active

060160985

ABSTRACT:
A first rotor and a second rotor are prepared. The first rotor has a resistor and inner-peripheral and outer-peripheral electrodes respectively connected to end portions of this resistor. The second rotor has a resistor and inner-peripheral and outer-peripheral electrodes symmetrical with those of the first rotor, provided at a position corresponding to that obtained by rotating the first rotor about the axis of the first rotor by an angle of 180.degree. with respect to the first rotor. A variable resistor selectively uses either one of the first rotor and second rotor. This makes it possible to provide a variable resistor which requires few parts. Also, this makes it possible to reduce the kinds of bending operations that must be performed on the terminals.

REFERENCES:
patent: 4998088 (1991-03-01), Masura
patent: 5053742 (1991-10-01), Masura
patent: 5305110 (1994-04-01), Taki et al.
patent: 5790012 (1998-08-01), Nakatsu et al.

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