US PATENT SUBCLASS 338 / 187
.~.~.~ With arc suppressor

Current as of: June, 1999
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338 /   HD   ELECTRICAL RESISTORS

68  DF  MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24}
118  DF  .~ Movable contact electrically adjustable over length of resistance element {21}
185  DF  .~.~ With intervening connector between contact and element (e.g., taps) {6}
187.~.~.~ With arc suppressor

DEFINITION

Classification: 338/187

(under subclass 185) Subject matter including structure or arrangement to reduce or eliminate arcing between the movable contactor and the conducting structures, such as taps engaged by this contactor as the contact moves off a conducting structure or from one conducting structure to the next.

SEE OR SEARCH CLASS

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

1+, for electrical switches involving arc preventing and extinguishing.

361, Electricity: Electrical Systems and Devices,

2+, electrical safety and protection systems for contact-arc suppression.