US PATENT SUBCLASS 338 / 152
.~.~.~ With knob mounting or enclosing the element

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}
150  DF  .~.~ Resistance element moves {2}
152.~.~.~ With knob mounting or enclosing the element

DEFINITION

Classification: 338/152

(under subclass 150) Subject matter including a knob, the resistance element being disposed within the knob or directly on the surface of the knob, and being rotatable with the knob to move along the contact.

SEE OR SEARCH THIS CLASS, SUBCLASS:

163, for a resistor having an angularly slidable contact in which the knob forms the casing or covering.

184, for a resistor whose contact slides along the resistance element with a housing.

199, for mechanically variable resistors with housings.