US PATENT SUBCLASS 361 / 134
.~.~.~ Arc stretching (e.g., blowout)

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}
117  DF  .~ High voltage dissipation (e.g., lightning arrester) {10}
133  DF  .~.~ With magnetic means (e.g., electromagnet) {2}
134.~.~.~ Arc stretching (e.g., blowout) {1}
135  DF  .~.~.~.~> By separating contacts

DEFINITION

Classification: 361/134

Arc stretching (e.g., blowout):

(under subclass 133) Subject matter wherein magnetic means are used to lengthen the arc thereby isolating the load circuit.

SEE OR SEARCH CLASS

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

22+, for magnetic blowouts used with switches.

313, Electric Lamp and Discharge Devices,

153+, for miscellaneous space discharge devices having magnetic means for influencing the space discharge.