US PATENT SUBCLASS 338 / 140
.~.~.~ With intervening connector between contact and element (e.g., taps)

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}
138  DF  .~.~ Element tapered {4}
140.~.~.~ With intervening connector between contact and element (e.g., taps)

DEFINITION

Classification: 338/140

(under subclass 138) Subject matter wherein a plurality of electrically separate conducting structures are each connected to the tapered resistance element along its length together with a terminal movable along or over the conducting structures to constitute a contact on such structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

72, for a mechanically tap type variable resistor in or on a lamp socket.

154, for a variable resistor having an intermediate conductive strip between the resistance element and the movable member, usually to reduce wear.

185+, for variable resistors of the tap type.

323, for a fixed resistor having a terminal tapped along the resistance element.

325, for a resistor with three or more terminals.