US PATENT SUBCLASS 72 / 370.08
.~.~.~.~ Expanding internal tool

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

362  DF  PROCESS {8}
367.1  DF  .~ Tube making or reshaping {11}
370.01  DF  .~.~ Comprising use of internal tool {4}
370.06  DF  .~.~.~ Expanding tube {2}
370.08.~.~.~.~ Expanding internal tool

DEFINITION

Classification: 72/370.08

Expanding internal tool:

(under subclass 370.06) Process in which the tool in the interior of the tube* increases in size transversely thereby deforming the tube*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

393, for a tool for tube expanding.