US PATENT SUBCLASS 338 / 251
.~.~ Sheath embraces or folds over insulation


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

226  DF  INCASED, EMBEDDED, OR HOUSED {22}
243  DF  .~ Element in insulation with outer metallic sheath {6}
251.~.~ Sheath embraces or folds over insulation


DEFINITION

Classification: 338/251

(under subclass 243) Subject matter wherein the metallic sheath is formed as a sheet and surrounds the solid insulation, the two opposite sides of the sheet either substantially meeting or overlapping.

(1) Note. In this subclass the metallic sheath is usually formed as a C, the ends of the C substantially meeting or overlapping around the solid insulation; or the metallic sheath is formed a bendable sheet, and is wrapped around the solid insulation with some overlapping.

SEE OR SEARCH THIS CLASS, SUBCLASS:

259, for incased, embedded, or housed resistors, the casing or housing being wound over the resistance element.