US PATENT SUBCLASS 361 / 3
.~.~ Synchronized or sequential opening or closing

Current as of: June, 1999
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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

1  DF  SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32}
2  DF  .~ Arc suppression at switching point (i.e., includes solid-state switch) {4}
3.~.~ Synchronized or sequential opening or closing {5}
4  DF  .~.~.~> Counter electromotive force
5  DF  .~.~.~> With current sensitive control circuit
6  DF  .~.~.~> With voltage sensitive control circuit
7  DF  .~.~.~> With combined voltage and current sensitive control circuit
8  DF  .~.~.~> Shunt bypass {1}

DEFINITION

Classification: 361/3

Synchronized or sequential opening or closing:

(under subclass 2) Subject matter with means to open or close the switch at a predetermined time or in a predetermined sequence.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems,

238, and 321.