Open frame single turn potentiometer with helical coil spring wi

Details Open frame single turn potentiometer with helical coil spring wi Open frame single turn potentiometer with helical coil spring wi

1978-08-30

1980-09-30

Albritton, C. L.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338163, 338202, H01C 1034

Patent

active

042258456

ABSTRACT:
An open frame single turn potentiometer with a helical coil spring wiper including a resilient member situated between the substrate and the rotor. The resilient member consists of an annular ring preferably having a "D-shaped" or hemispherically shaped cross section. This "D" ring member performs the function of providing a spring action between the substrate and the rotor; means for controlling torque; and means for adjusting to the build-up in tolerences between the various component elements of the trimmer, thereby achieving optimum electrical and mechanical performance.

REFERENCES:
patent: 2418472 (1947-04-01), Kline
patent: 2451241 (1948-10-01), Rosentreter
patent: 2576044 (1951-11-01), Richman et al.
patent: 2909749 (1959-10-01), Barden et al.
patent: 3119089 (1964-01-01), Murry
patent: 3531753 (1970-09-01), Geese
patent: 3961302 (1976-06-01), Hufford
patent: 3964011 (1976-06-01), Ragan
patent: 4110722 (1978-08-01), Brendle et al.
patent: 4121188 (1978-10-01), Ragan

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