Variable resistance device

Details Variable resistance device Variable resistance device

1994-07-18

1996-10-29

Walberg, Teresa J.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338162, 338202, 338175, 338143, 338157, 338150, H01C 1032

Patent

active

055700764

ABSTRACT:
The present invention provides a variable resistance device having at least one pair of channels retaining a conductive ball between them. The channels contain a resistive element and a conductive element and movement of the conductive ball within the channels, caused by rotation of the channels relative to each other, provides a variable resistance.

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patent: 3533043 (1970-10-01), Spaude
patent: 4032880 (1977-06-01), Di Michele et al.
patent: 4878040 (1989-10-01), Tamura

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