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. 19, 1977
Filed:
Oct. 28, 1975
Applicant:
Inventor:
Edward C Miller, Broomfield, CO (US);
Assignee:
Ball Corporation, Muncie, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72347 ; 113 / ; 1131 / ;
Abstract
A punch for mating engagement with a ram for use in forming D&I can bodies. The punch has a plurality of lands disposed about the internal periphery thereof which results in the punch having significantly more mass at or near the nose thereof than it does at the opposing end. A plurality of lands disposed on the ram mate with respective lands within the punch to support and maintain the punch in a workable posture. The improved punch and ram assembly result in increased strength in the punch near the nose and increased strength in the ram at the area most removed from the nose of the punch and yet in engagement with the punch.