US2008196472A1PendingUtilityA1

Apparatus and method for forming inside surface of tube stock

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Individually held — no corporate assignee on recordPriority: Sep 8, 2005Filed: Aug 29, 2006Published: Aug 21, 2008
Est. expirySep 8, 2025(expired)· nominal 20-yr term from priority
Inventors:George N. Mosey
B21H 1/12B23P 15/003B21D 53/10B21D 15/06F16C 33/64B21D 53/16
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PatentIndex Score
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Claims

Abstract

A method for forming a smooth cylindrical inside wall of a tube is described. The tube is heated and a shaped arbor is inserted into the tube. The tube is forced against the arbor to shape the interior of the tube in general conformity to the arbor and the arbor is removed. The tube may be cut into several sections shaped to be useful as tapered roller bearing cups.

Claims

exact text as granted — not AI-modified
1 . A method of forming a smooth cylindrical inside wall of a tube useful for preparing tapered roller bearing cups, comprising:
 providing a tube heated to an elevated temperature sufficient to allow forming of the tube by pressing against a shaped arbor;   inserting a shaped arbor into the tube;   forcing the tube against the arbor to shape the interior of the tube in general conformity with the shaped arbor; and   removing the shaped arbor from the tube.   
   
   
       2 . The method of  claim 1  and which further comprises cutting the tube into several sections shaped to be useful as tapered roller bearing cups.

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