Rotating type variable resistor

Details Rotating type variable resistor Rotating type variable resistor

2008-05-06

2008-05-06

Enad, Elvin (Department: 2832)

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

C338S122000, C338S138000

Reexamination Certificate

active

07369033

ABSTRACT:
The rotating type variable resistor includes a housing; a rotating member disposed to be rotatable in the housing; a ring-shaped support member having a conductive pattern at one surface of the support member and disposed at any one side between the housing and the rotating member; and a sliding member disposed at the other side between the housing and the rotating member, and capable of sliding relative to the conductive pattern, wherein the conductive pattern is composed of a high resistor unit containing carbon and a low resistor unit having a specific resistance lower than that of the high resistor unit, and the high resistor unit and the low resistor unit are alternately and repeatedly formed along a direction where the conductive pattern and the sliding member slide.

REFERENCES:
patent: 2751473 (1956-06-01), Coler et al.
patent: 2873336 (1959-02-01), Tassara
patent: 3579169 (1971-05-01), Dickinson
patent: 3602861 (1971-08-01), Tweed et al.
patent: 4075597 (1978-02-01), Peart
patent: 4223294 (1980-09-01), Moffitt et al.
patent: 6275140 (2001-08-01), Asano
patent: 6471839 (2002-10-01), Yamamoto et al.
patent: 11-176287 (1999-07-01), None

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