Means lowering contact resistance in variable resistance control

Details Means lowering contact resistance in variable resistance control Means lowering contact resistance in variable resistance control

1974-09-12

1976-06-22

Albritton, C. L.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338171, 338176, 338211, 01C 1038, H01C 1032

Patent

active

039654540

ABSTRACT:
An electrical contact arm having an electrical contact engaging a collector path also has at least two electrical contacts engaging a resistance path, the resistance path having rows of discrete spots of a good electrically conductive material spaced along the resistance path, the number of rows being equal to the number of electrical contacts engaging the resistance path, and the spots of one row being staggered with respect to the spots of another row such that at least one of the electrical contacts engaging the resistance path will be in engagement with one of the spots as the contact arm moves along the collector and resistance paths.

REFERENCES:
patent: 1985166 (1934-12-01), Haroldson
patent: 1992410 (1935-02-01), Benkelman
patent: 2005922 (1935-06-01), Stoekle
patent: 2134870 (1938-11-01), Fruth
patent: 2632830 (1953-03-01), Aust et al.
patent: 2710900 (1955-06-01), Linder
patent: 3343115 (1967-09-01), Greenwood
patent: 3855565 (1974-12-01), Robinson et al.

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