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:
Apr. 17, 1984
Filed:
Nov. 23, 1981
Applicant:
Inventor:
Seung W Lyu, Palos Hills, IL (US);
Assignee:
National Can Corporation, Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72349 ; 72468 ;
Abstract
A drawing and ironing assembly including a punch movable along a path having a plurality of spaced ironing die assemblies with the last of the ironing die assemblies having twin spaced lands, the diameter of the second twin land is slightly greater than the diameter of the first land to produce a very small amount of ironing.