US PATENT SUBCLASS 338 / 294
.~ Cylindrical


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

283  DF  ZIGZAG OR SINUOUS RESISTANCE ELEMENT {10}
294.~ Cylindrical


DEFINITION

Classification: 338/294

(under subclass 283) Subject matter wherein the zigzag or sinuous resistance element lies in or is formed as a cylindrical surface of revolution.

(1) Note. The elongated potions of the resistance element may form elements of a cylinder or be circular to lie in the cylindrical surface of revolution.

SEE OR SEARCH THIS CLASS, SUBCLASS:

162+, and 190+, for mechanically variable resistors with an angularly movable contact arm whose resistance element is formed as a cylindrical zigzag or sinusoid.

207, for a resistor whose element and base are folded or rolled.

286, for a compound or multiple zigzag resistor including a helical pattern.

287+, for compound or multiple zigzag resistors generally.

296+, for helical or wound resistors generally.