US PATENT SUBCLASS 219 / 121.42
.~.~.~.~.~ Rate control

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

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
121.11  DF  .~ By arc {16}
121.36  DF  .~.~ Using plasma {8}
121.39  DF  .~.~.~ Cutting {2}
121.4  DF  .~.~.~.~ Etching {3}
121.42.~.~.~.~.~ Rate control

DEFINITION

Classification: 219/121.42

Rate control:

(under subclass 121.4) Subject matter wherein the speed of removal of material from a workpiece by a plasma torch is regulated (e.g., by controlling gas flow or power to the torch).

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

231.31+, fluid supply with plasma devices.

315, Electric Lamp and Discharge Devices: Systems,

111.21+, for plasma generating systems.