US PATENT SUBCLASS 338 / 54
.~ Element granular, powdered, or stacked between terminals


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

53  DF  WITH COOLING GAS OR LIQUID CIRCULATION {4}
54.~ Element granular, powdered, or stacked between terminals


DEFINITION

Classification: 338/54

(under subclass 52) Subject matter wherein the resistance element is granular or powdered in form or is formed as a plurality of layers or other distinct masses stacked or piled transversely to the direction of current flow through the resistance element, i.e., so that the current flowing through the resistance element will flow from mass to mass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

52, for resistors with heat dissipating projections, and having granular powdered or transversely stacked elements.

99+, for mechanically variable resistors including surfaces pressed together for adjustment purposes, e.g., compressible type; and subclass 115 for such resistors generally whose elements are in piled or stacked layers.

204+, for resistors generally whose elements are piled or stacked between terminals.

223+, for resistors having granular or powdered elements.