US PATENT SUBCLASS 219 / 81
.~.~ Roller electrode

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
78.01  DF  .~ For bonding with pressure (e.g., resistance welding) {16}
81.~.~ Roller electrode {3}
82  DF  .~.~.~> Roller moves over work
83  DF  .~.~.~> Methods
84  DF  .~.~.~> Electrode structure

DEFINITION

Classification: 219/81

(under subclass 78.01) Subject matter in which the electric current is applied to the metal by roller type electrodes.

(1) Note. The roller electrode may produce a continuous weld or an interrupted weld, consisting of distinct spots.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102, for similar subject matter.

SEE OR SEARCH CLASS

191, Electricity: Transmission to Vehicles, appropriate subclasses for current collecting and current distributing rollers. 492, Roll or Roller, for a roll, per se, not elsewhere provided for, and see the notes thereunder.