US PATENT SUBCLASS 219 / 121.33
.~.~.~ With fluid supply (e.g., shielding gas or coolant)

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}
121.12  DF  .~.~ Using electron beam {12}
121.33.~.~.~ With fluid supply (e.g., shielding gas or coolant)

DEFINITION

Classification: 219/121.33

With fluid supply (e.g., shielding gas or coolant):

(under subclass 121.12) Subject matter wherein the particle beam generator structure is provided with means for receiving and utilizing a fluid as a working fluid in machining or as a cooling or shield fluid.

(1) Note. Machining includes welding, cutting, etching, etc.