US PATENT SUBCLASS 338 / 179
.~.~.~.~ With series switch

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}
176  DF  .~.~.~ Contact rectilinearly slidable {6}
179.~.~.~.~ With series switch

DEFINITION

Classification: 338/179

(under subclass 176) Subject matter wherein the resistor is combined with a switch in series with the resistor.

(1) Note. Subject matter in this subclass includes a rectilinearly movable contact which may carry an operating means which opens or closes an electrical circuit through the resistance element upon movement of the contact.

SEE OR SEARCH THIS CLASS, SUBCLASS:

172+, for a variable resistor having an angularly slidable contact together with a switch.

178, for a variable resistor having a rectilinearly slidable contact separable from the resistance element for switching.

191, for a tap type resistor having an angularly movable contact together with a switch. 200+, for variable resistors generally with switches.

215, for a fixed resistor combined with a switch.

SEE OR SEARCH CLASS

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

2+, for electromagnetically activated switches.