US PATENT SUBCLASS 338 / 170
.~.~.~.~ With contact biasing spring on contact arm or carrier

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}
160  DF  .~.~ Contact slides along in contact with element {3}
162  DF  .~.~.~ Contact angularly slidable {11}
170.~.~.~.~ With contact biasing spring on contact arm or carrier

DEFINITION

Classification: 338/170

(under subclass 162) Subject matter including a spring mounted on and in addition to the contact carrier, guide, or arm, and biasing the contact against the resistance element.

(1) Note. A mere resilient contact arm which performs the dual function of supporting the contact portion, and also biasing it against the resistance element is not sufficient for classification here, but elsewhere under subclass 162. For classification here the biasing spring must be structure in addition to the contact arm or carrier.