US PATENT SUBCLASS 338 / 164
.~.~.~.~ Hermetically sealed housing

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

68  DF  MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24}
118  DF  .~ Movable contact electrically adjustable over length of resistance element {21}
160  DF  .~.~ Contact slides along in contact with element {3}
162  DF  .~.~.~ Contact angularly slidable {11}
164.~.~.~.~ Hermetically sealed housing

DEFINITION

Classification: 338/164

(under subclass 162) Subject matter including a casing with the necessary seals to prevent passage of air, dust, or moisture to the resistor structure contained therein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

184, and 199, for variable resistors with housings not necessarily hermetically sealed.

226+, for incased, embedded or housed fixed resistors.