US PATENT SUBCLASS 361 / 10
.~.~ By inserting series impedance

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}
10.~.~ By inserting series impedance {2}
11  DF  .~.~.~> Nonlinear impedance
12  DF  .~.~.~> By arc stretching (e.g., horn gap)

DEFINITION

Classification: 361/10

By inserting series impedance:

(under subclass 2) Subject matter with means to place an impedance in-line with the main switching points to suppress the arc causing surge.

SEE OR SEARCH THIS CLASS, SUBCLASS:

58, for impedance insertion in general.

SEE OR SEARCH CLASS

218, High-Voltage Switches With Arc Preventing and Extinguishing Devices,

1+, and 143+ for switches having arc preventing and extinguishing features with resistance insertion.