US PATENT SUBCLASS 338 / 182
.~.~.~.~ With contact lock

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}
182.~.~.~.~ With contact lock

DEFINITION

Classification: 338/182

(under subclass 176) Subject matter including means for securing the contact at some definite point on the resistance element to prevent motion of the contact in both directions along the element.

(1) Note. A mere stop which prevents motion of the contact in one direction is not classified here, but in the generic subclass 176 above. Subject matter generally found in this subclass includes a rectilinearly movable contact having some means, usually a nut or screw, to secure the contact to some point on the resistance element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

131, for ganged plural variable resistors, the resistors being individually adjustable.

135, for variable resistors with zero setting or phasing means.

136, for a resistor with a contact clamped on the resistance element.