Quasifixed variable resistor

Details Quasifixed variable resistor Quasifixed variable resistor

1987-08-26

1989-05-30

Goldberg, E. A.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338162, 338169, H01C 1034

Patent

active

048355119

ABSTRACT:
A quasifixed variable resistor includes a resistor substrate with a resistor mounted thereon, a stopper plate rotatably retained about an axis on the substrate, and a knob having a slider fixed to an end of the stopper plate, the slider, sliding on the resistor. In a flat portion located at a bottom end of a cylindrical section of the stopper plate, a screwdriver engaging section having an adjusting groove is folded and is integrally formed therein. A wing piece branched by the adjusting groove is tapered in a direction toward the flat portion and a tip end of the screwdriver can be engaged with an end portion of the wing piece for adjustment.

REFERENCES:
patent: 4110722 (1978-08-01), Brendle et al.
patent: 4121188 (1978-10-01), Ragan
patent: 4205296 (1980-05-01), Frey, Jr.
patent: 4654625 (1987-03-01), Bentz et al.

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