US PATENT SUBCLASS 228 / 186
.~.~ Preliminary sealing of joints


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

101  DF  PROCESS {38}
178  DF  .~ Plural joints {9}
186.~.~ Preliminary sealing of joints


DEFINITION

Classification: 228/186

(under subclass 178) Process in which there are first and second fusion bonding operations, the first bonding operation serving to seal the environment about the meeting faces of the second bonding operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

175, for bonding of the class type preceded by another bonding operation.