US PATENT SUBCLASS 228 / 219
.~.~.~ Gas or vapor

Current as of: June, 1999
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228 /   HD   METAL FUSION BONDING

101  DF  PROCESS {38}
214  DF  .~ With protecting of work or filler or applying flux {5}
218  DF  .~.~ Using gas, vapor, vacuum, or reactive flame {2}
219.~.~.~ Gas or vapor {1}
220  DF  .~.~.~.~> Reducing gas

DEFINITION

Classification: 228/219

(under subclass 218) Process as set forth under clause (1) of that definition.

(1) Note. The atmosphere utilized to replace the normal atmosphere may be held in the area of the bond by an enclosing vessel or by the action of a directed blast which serves to expel the normal atmosphere.