Variable resistor

Details Variable resistor Variable resistor

1979-05-14

1981-08-11

Albritton, C. L.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338 89, 338142, 338162, 338171, 338174, 338217, 338320, H01C 1022

Patent

active

042837049

ABSTRACT:
In a variable resistor of the type wherein there is formed on an insulating substrate a resistive member having wide portions and narrow portions in the sliding direction of a slide member and ends thereof wired respectively to a ground terminal and an input terminal. A plurality of contact elements formed on said slide member are brought into sliding contact with said resistive member and a high resistance film allowing the passage of electrostatic charges therethrough is formed at portions of said insulating substrate lying within the sliding passage of said contact elements so that a part of said contact elements comes into contact therewith when it comes off from said resistive member.

REFERENCES:
patent: 2101441 (1937-12-01), Marsten
patent: 2134870 (1938-11-01), Fruth
patent: 3965454 (1976-06-01), Puerner
patent: 4123741 (1978-10-01), Kiyono et al.

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