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:
Jul. 26, 1988
Filed:
Aug. 27, 1987
Applicant:
Inventor:
Ivano G Cudini, Woodstock, CA;
Assignee:
TI Automotive Division of TI Canada Inc., Toronto, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29523 ; 29445 ; 29516 ; 2915 / ; 138140 ; 138172 ;
Abstract
This invention relates to a method of forming hollow, box-section, frame members which include localized reinforcement. The frame members are produced by fitting a sleeve about a tube, deforming the tube and sleeve to avoid the occurrence of frictional drag in a final die, and then expanding the tube and sleeve in a final die to form the hollow, box-section, frame member. The expansion is achieved by application of an internal pressure within the tube.