US PATENT SUBCLASS 338 / 167
.~.~.~.~ Spring-loaded contact

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}
167.~.~.~.~ Spring-loaded contact

DEFINITION

Classification: 338/167

(under subclass 162) Subject matter wherein a spring or similar structure is connected between the rotatable and the fixed structure of the resistor to bias the contact to a fixed predetermined point in its arc of movement, while permitting adjustment from this point against its biasing effect.

SEE OR SEARCH THIS CLASS, SUBCLASS:

99+, for especially subclass 105, for compressible resistors involving a biasing effect and subclass 108, for compressible resistors which are pedal or treadle operated.

116+, for resistors adjustable by an electric motor.

153, for pedal or treadle operated variable resistors of the movable contact type having a contact biased along the resistance element.

168, for an adjustable resistor having an angularly slidable contact, and a spring between the fixed and movable parts for conducting electric energy to the contact.