Variable resistor

Details Variable resistor Variable resistor

1994-06-29

1995-12-12

Hoang, Tu

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338314, 252512, H01C 1030

Patent

active

054753597

ABSTRACT:
A variable resistor having a resistor body including a lower layer resistor in which at least carbon fibers and a carbon black are dispersed in a synthetic resin and an upper resistance layer not containing carbon fibers and in which at least a carbon black is dispersed in a synthetic resin, the upper layer being formed on the lower layer. Abrasion of a slider and the resistor body are suppressed to provide a long operation life, that is, a sliding movement life of the variable resistor.

REFERENCES:
patent: 4145317 (1979-03-01), Sado et al.
patent: 4300115 (1981-01-01), Ansell et al.
patent: 4639391 (1987-01-01), Charles
patent: 4877554 (1989-10-01), Honma et al.
patent: 5111178 (1992-05-01), Bosze

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