US PATENT SUBCLASS 228 / 140
.~.~.~ Threaded fastener

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

101  DF  PROCESS {38}
135  DF  .~ With supplementary mechanical joining {3}
139  DF  .~.~ Using separate fastener {1}
140.~.~.~ Threaded fastener

DEFINITION

Classification: 228/140

(under subclass 139) Process wherein the distinct structural part includes a helically ribbed portion adapted to interfit with either one of the parts being fastened together or with another cooperatively grooved member to hold together the parts being bonded.