Electrical resistors – Mechanically variable – Movable contact electrically adjustable over length of...
Patent
1994-11-02
1996-09-10
Walberg, Teresa J.
Electrical resistors
Mechanically variable
Movable contact electrically adjustable over length of...
338154, 338156, 338 94, 338 75, 338162, 338172, H01C 1000
Patent
active
055549659
ABSTRACT:
The present invention provides a lubricated variable resistance control including a substrate having formed thereon an electrical resistance path and an electrical conductive path, and a movable contact electrically bridging the electrical resistance path and the electrical conductive path. Disposed along the electrical conductive path is a non-conductive lubricant material. The electrical conductive path includes one or more protruding ridges spaced along one surface of the electrical resistance path. The ridges are formed of an electrically resistive material and they serve to help insure that the control device does not suffer from current interruptions.
REFERENCES:
patent: 3673539 (1972-06-01), Healy et al.
patent: 3697920 (1972-10-01), Kemp
patent: 3854113 (1974-12-01), Fletcher et al.
patent: 4371862 (1983-02-01), Lipp et al.
patent: 4732802 (1988-03-01), Bosze et al.
patent: 4931764 (1988-12-01), Gaston
patent: 5035836 (1991-07-01), Gardos et al.
patent: 5051719 (1991-09-01), Gaston et al.
patent: 5111178 (1992-05-01), Bosze
patent: 5155465 (1992-10-01), Tsuzuki et al.
Technology News, "Porcelainized-steel substrates gain favor for pc boards, hybrids," Jun. 20, 1980, pp. 47-49, 52, 54, 57-58 and 60.
Easthom Karl
The Erie Ceramic Arts Company
Walberg Teresa J.
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