US PATENT SUBCLASS 361 / 87
.~.~ Current

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

Internet Version by PATENTEC © 1999      Terms of Use


361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

1  DF  SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32}
78  DF  .~ With specific quantity comparison means {5}
87.~.~ Current

DEFINITION

Classification: 361/87

Current:

(under subclass 78) Subject matter wherein the protective circuitry is activated by a difference in the compared currents.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5, for current sensing means in arc suppression circuits.

31+, for current responsive control circuitry in motor protective circuits.

57, for current sensing means in load shunting circuits.

63+, for current sensing means in feeder circuits.

93.1+, for specific current responsive sensors.