US PATENT SUBCLASS 338 / 247
.~.~ Plural part sheath

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}
247.~.~ Plural part sheath {2}
248  DF  .~.~.~> Insulation formed and hardened in situ (e.g., molded)
249  DF  .~.~.~> Parts formed as flat sheets

DEFINITION

Classification: 338/247

(under subclass 243) Subject matter wherein the metallic sheath is formed in two or more parts secured together.

(1) Note. Usually in this subclass the parts are permanently secured together, as by welding, bending, or riveting. Examples of the subject matter in this subclass are a capped tubular sheath, a two part sheath with one or both parts being channel shaped, or a two part sheath with one part recessed and the other part constituting a cover for the recess.

SEE OR SEARCH THIS CLASS, SUBCLASS:

232+, for incased, embedded, or housed resistors whose casing or housing is readily openable or separable from the element.

252+, for resistors whose element is embedded or enclosed in a groove or recess.

256+, for resistors with a plural layer casing.

274, for incased, embedded, or housed elongated resistors with a sealing plug disc or cap, the leads or terminals extending into the ends of the casing or housing.