US PATENT SUBCLASS 338 / 93
.~.~ Compressible spring type

Current as of: June, 1999
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338 /   HD   ELECTRICAL RESISTORS

68  DF  MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24}
92  DF  .~ Resistance element adjustably short-circuited {5}
93.~.~ Compressible spring type

DEFINITION

Classification: 338/93

(under subclass 92) Subject matter in which the resistance element is formed as a compressible spring (usually helical), the convolutions of the spring coming into contact upon compression to short-circuit at least a portion of the length of the resistance element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

99+, for compressible type variable resistors generally.

114+, for mechanically variable resistors whose elements are deformable.