Electrical resistors – Mechanically variable – Movable contact electrically adjustable over length of...
Patent
1997-06-30
1999-06-29
Walberg, Teresa
Electrical resistors
Mechanically variable
Movable contact electrically adjustable over length of...
338199, H01C 1030
Patent
active
059174021
ABSTRACT:
A resistor pattern of an insulating substrate is printed with reference to a first contact portion and a second contact portion, and the insulating substrate is attached to a holder such the first and second contact portions of the insulating substrate are brought into contact with second contact portions of the holder to position the insulating substrate. Therefore, an error between the relative positions of a slider piece and a resistor pattern is decreased, and variations in resistance change characteristic are decreased.
REFERENCES:
patent: 4310824 (1982-01-01), Steigwald et al.
patent: 4884052 (1989-11-01), Eitoku et al.
patent: 5043695 (1991-08-01), Simon et al.
patent: 5250926 (1993-10-01), McSwiggen et al.
Alps Electric Co. ,Ltd.
Pwu Jeffery
Walberg Teresa
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