US PATENT SUBCLASS 338 / 144
.~.~.~ Contact lifts element from core

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}
143  DF  .~.~ Contact moves along turns of helical resistance element {6}
144.~.~.~ Contact lifts element from core

DEFINITION

Classification: 338/144

(under subclass 143) Subject matter wherein the helical resistance element is wound on a core or reel and is adapted to have the portion adjacent the contact raised slightly from the surface of the core, as by having the contact disposed between adjacent portions of the core and the element, the portion of the element which is raised changing with changes in the position of the contact to remain adjacent the contact.