US PATENT SUBCLASS 338 / 49
SHUNT TYPE


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



338 /   HD   ELECTRICAL RESISTORS

49SHUNT TYPE


DEFINITION

Classification: 338/49

(under the class definition) Subject matter wherein the resistor is peculiarly adapted for shunting a metering instrument, the resistor terminals usually being of large mass and having a plurality of sets of connectors, one smaller set for the instrument and the other larger set for the main current leads, the resistance element extending therebetween and usually being flat or formed with ventilating means such as fine or vented passages, or with a plurality of separate current paths to present a large cooling surface to maintain uniform temperature and prevent change in the resistance value or the resistor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

51, for resistors with heat dissipating projections, e.g., vanes.

322, for plural resistance elements in parallel between terminals.

324, for fixed resistors having diverse terminals.

SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing, 126, for measuring or testing instruments having coupling means, e.g., shunts.