US PATENT SUBCLASS 219 / 121.49
.~.~.~.~ Cooling system

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}
121.48  DF  .~.~.~ Plasma torch structure {5}
121.49.~.~.~.~ Cooling system

DEFINITION

Classification: 219/121.49

Cooling system:

(under subclass 121.48) Subject matter wherein a fluid is supplied to the torch for cooling the nozzle.