Potentiometer wiper assembly

Details Potentiometer wiper assembly Potentiometer wiper assembly

1990-05-24

1991-09-10

Lateef, Marvin M.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338167, 338168, 338170, 338171, H01C 1032

Patent

active

050477463

ABSTRACT:
A wiper assembly for a potentiometer, particularly a rotary potentiometer having a rotor for carrying the wiper assembly along a resistive element, includes a metal plate attached to the rotor. A strip of metal formed integrally with the plate is bent back over itself out of the plane of the plate to form a cantilevered spring arm having a free end. Attached to the free end is an array of resilient, conductive wires arranged in a parallel, side-by-side relationship, each of the wires forming a resilient, cantilevered wiper finger. The spring arm and the array of wire wiper fingers attached to it form a hybrid wiper arm assembly. Preferably, the plate includes a first such hybrid wiper arm assembly arranged to function as a wiper for the resistive element in the potentiometer, and a second such wiper arm assembly arranged to function as a wiper for a conductive collector element in the potentiometer.

REFERENCES:
patent: 3704436 (1972-11-01), Froebe et al.
patent: 3755892 (1973-09-01), Dieterich
patent: 4186483 (1980-02-01), Laube et al.
patent: 4427966 (1984-01-01), Gratzinger et al.
patent: 4679024 (1987-07-01), Kittleson
patent: 4810994 (1989-03-01), Froebe et al.

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