The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2003
Filed:
Apr. 30, 2002
Applicant:
Inventor:
Ivan Harry Peterson, Auburn, NH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 3/920 ; B21D 2/602 ;
U.S. Cl.
CPC ...
B21D 3/920 ; B21D 2/602 ;
Abstract
An approach to restoring the cross-section of a bent tube to circularity. The tube is placed into a fixture, so that pressurization does not remove the bend. Liquid is placed into the tube, and pressurized. Pressure is increased until the wall of the tube undergoes plastic deformation, and becomes circular.