US PATENT SUBCLASS 72 / 370.11
.~.~.~ Flange forming

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}
370.1  DF  .~.~ End forming {3}
370.11.~.~.~ Flange forming

DEFINITION

Classification: 72/370.11

Flange forming:

(under subclass 370.1) Process in which an axial extremity of the tube* is flared outward making a projecting rim.