US PATENT SUBCLASS 338 / 158
.~.~.~ Contact rolls rectilinearly

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}
157  DF  .~.~ Contact rolls along element or taps {1}
158.~.~.~ Contact rolls rectilinearly

DEFINITION

Classification: 338/158

(under subclass 157) Subject matter wherein the rolling contact terminal rolls in a straight path over or along the resistance element or taps.

SEE OR SEARCH THIS CLASS, SUBCLASS:

74, for a mechanically variable resistor having a rectilinearly slidable contact, the resistor being mounted in or on a lamp socket.

117, for a variable resistor having slidable helical and linear contacts.

133, for a ganged rectilinearly operated variable resistor.

176+, for variable resistors whose contact slides rectilinearly over the element.

194, for a variable resistor having taps contacted by a rectilinearly movable contact.