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:
Jun. 29, 2004
Filed:
Sep. 24, 2001
Applicant:
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 5/126 ;
U.S. Cl.
CPC ...
B21D 5/126 ;
Abstract
A simultaneous two-sided iron-deep drawing process for producing vessels such as metal cans. After being used, the cans can easily be squashed. A difference in height between the inner die and the outer die or the profile radii of the two dies are varied so as to change the longitudinal wall strength of the vessel. The work material is held between the two dies so that both sides are simultaneously ironed and thereby a tubular structure is obtained.