US PATENT SUBCLASS 338 / 136
.~.~ Contact clamped on resistance 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}
136.~.~ Contact clamped on resistance element


DEFINITION

Classification: 338/136

(under subclass 118) Subject matter wherein the resistor element has adjustable movable contact taps or terminals which are adapted to be moved along the resistance element and clamped as by a screw in direct contact therewith so that any value of the element resistance may be obtained.

(1) Note. Subject matter generally found in this subclass consists of a fixed resistor with tap contacts that embrace the resistor and are screw clamped in position. For classification here the contact must be clamped directly to

the element. Structure generally for setting the resistance element is classified elsewhere under subclass 118, such as subclass 182, for rectilinearly slidable resistance contacts with a lock.

SEE OR SEARCH THIS CLASS, SUBCLASS:

77, for variable resistors of the plug box type.

92+, for variable resistors having adjustable short circuit means.

182, for variable resistors with a rectilinearly slidable contact including a lock. See also (1) Note above. 323, for resistors having terminals tapped along the element.

325, for resistors with three or more terminals.

SEE OR SEARCH CLASS

336, Inductor Devices,

150, for inductors having taps for varying the effective inductance.