US PATENT SUBCLASS 338 / 125
.~.~ Unitary movable contact electrically bridges plural resistance elements

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}
125.~.~ Unitary movable contact electrically bridges plural resistance elements {2}
126  DF  .~.~.~> Elements or taps in parallel
127  DF  .~.~.~> Contact rotates between circularly arranged elements or taps

DEFINITION

Classification: 338/125

(under subclass 118) Subject matter wherein a movable contact structure contacts a plurality of resistance elements or a plurality of series of taps or other contact structure electrically connected with the respective resistance elements, to provide a conducting bridge between the elements where contact is made.

(1) Note. Subject matter here is usually a single contact bar slidable over the surface of two resistance elements to change the resistance value between terminals at the ends of the respective elements.

SEE OR SEARCH THIS CLASS, SUBCLASS:

92+, for a variable resistor with an element short circuiting means.

130+, for plural resistors having ganged resistor actuators.