US PATENT SUBCLASS 228 / 203
.~ With pretreating other than heating or cooling of work part of filler prior to bonding and any application of filler

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

101  DF  PROCESS {38}
203.~ With pretreating other than heating or cooling of work part of filler prior to bonding and any application of filler {4}
204  DF  .~.~> Applying porous or capillary feed material
205  DF  .~.~> Cleaning {1}
208  DF  .~.~> Applying preliminary bond facilitating metal coating {2}
211  DF  .~.~> Chemical

DEFINITION

Classification: 228/203

(under subclass 101) Process including, before the bonding operation, subjecting the work part(s) or the filler material to action which brings about a change in the part or material.

(1) Note. Positional change or thermal change is not considered to be treatment for this subclass.

SEE OR SEARCH CLASS

29, Metal Working,

81.01+, for a process of removing scale from metal.