Electrical resistors – Mechanically variable – Movable contact electrically adjustable over length of...
Patent
1981-08-10
1982-11-30
Albritton, C. L.
Electrical resistors
Mechanically variable
Movable contact electrically adjustable over length of...
338202, 338162, H01C 1032
Patent
active
043618243
ABSTRACT:
A slidewire wiper contact has a wiper arm mounted at one end on a rotatable shaft while the other end of the arm carries an electrically conductive support extending past the end of the arm. A free end of the electrically conductive support has attached thereto a plurality of substantially constant outer diameter coils of electrically conductive wire. The coils are arranged in a continuous spiral while the electrically conductive support is attached thereto by a low resistance connection extending along a line on an outer surface of the coils. Electrical connection means are attached to the electrically conductive support for movement therewith during rotation of the wiper arm to maintain an electrical connection to the conductive support.
REFERENCES:
patent: 3076162 (1963-01-01), Ferrari
patent: 4020444 (1977-04-01), Oelsch et al.
Bresg, IBM Technical Disclosure Bulletin, "Spring Contactor", vol. 10, No. 4, p. 363, Sep. 1967.
Albritton C. L.
Burton Lockwood D.
Halista Mitchell J.
Honeywell Inc.
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