US PATENT SUBCLASS 338 / 154
.~.~ With a flexible conductive strip separating the movable contact and the resistance element or taps

Current as of: June, 1999
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338 /   HD   ELECTRICAL RESISTORS

68  DF  MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24}
118  DF  .~ Movable contact electrically adjustable over length of resistance element {21}
154.~.~ With a flexible conductive strip separating the movable contact and the resistance element or taps

DEFINITION

Classification: 338/154

(under subclass 118) Subject matter wherein a flexible conductive strip is disposed over the contact or tap path of the resistance element and normally spaced from the element or taps, the movable contact bending the portion of the strip overlying the contact into electrical engagement with the resistance element or taps; the portion of the strip engaging the resistance element or taps depending on the position of

the contact.

(1) Note. The purpose of this conductive strip is usually to reduce the wear on the resistance element or taps due to movement of the contact over the element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

92+, for variable resistors having adjustable short circuiting means, especially subclass 93.