US PATENT SUBCLASS 338 / 287
.~ Compound or multiple zigzag


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338 /   HD   ELECTRICAL RESISTORS

283  DF  ZIGZAG OR SINUOUS RESISTANCE ELEMENT {10}
287.~ Compound or multiple zigzag {1}
288  DF  .~.~> Element includes conductive jumpers or spacers


DEFINITION

Classification: 338/287

(under subclass 283) Subject matter wherein the resistance element is shaped to provide two distinct zigzag patterns in the same portion of the resistance element.

(1) Note. Usually the compound resistance element is formed by a series of zigzag grids disposed in parallel with alternate adjacent ends connected to form a second zigzag pattern, or a zigzag resistance element is bent to form a second zigzag pattern.

SEE OR SEARCH THIS CLASS, SUBCLASS:

286, for a resistor whose element is shaped to include in the same portion a helical and a zigzag or sinuous pattern.

298, for compound helical or wound resistors.