Variable resistor

Details Variable resistor Variable resistor

1987-05-22

1988-06-14

Albritton, C. L.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338309, 338314, H01C 1038

Patent

active

047514922

ABSTRACT:
A variable resistor for use in vehicles and electric apparatus having a resistive body whose resistance value is hardly affected by abrasion. The resistive body is composed of a lower resistive layer formed on the surface of a substrate and an upper resistive layer formed on said lower resistive layer, wherein said upper resistive layer has 2 to 500 times greater value of volume resistivity compared with said lower resistive layer.

REFERENCES:
patent: 4345236 (1982-08-01), Eichelberger et al.
patent: 4495524 (1985-01-01), Kakuhashi et al.

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