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:
Feb. 08, 1994
Filed:
Jan. 06, 1993
Applicant:
Inventor:
Frank J Herdzina, South Barrington, IL (US);
Assignee:
Service Tool International, Inc., Elk Grove Village, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B21J / ; B21D / ;
U.S. Cl.
CPC ...
72477 ; 413 12 ; 413 14 ; 413 56 ; 413 66 ;
Abstract
End tooling for forming easy open can ends has cooperatively-engageable upper and lower tooling defining a plurality of stations. Each station has appropriate punches and dies for progressively converting shells indexed by conveyor into easy open can ends. The tooling is adapted to convert ends of multiple diameters. The punch caps and die caps at each station have cylindrical bodies sized to engage and align a turned edge of a shell. The caps also have one or more arcuate grooves in the end face thereof for receiving the turned edge of ends having a diameter smaller than that of the cap.