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:
Jan. 31, 2012
Filed:
Jul. 02, 2009
Timothy L. Turner, Port Charlotte, FL (US);
Randall G. Forrest, Park Ridge, IL (US);
Rajesh Gopalaswamy, Alpharetta, GA (US);
Michael R. Gogola, Itasca, IL (US);
Timothy L. Turner, Port Charlotte, FL (US);
Randall G. Forrest, Park Ridge, IL (US);
Rajesh Gopalaswamy, Alpharetta, GA (US);
Michael R. Gogola, Itasca, IL (US);
Rexam Beverage Can Company, Chicago, IL (US);
Abstract
In a method of forming a beverage can end wherein a beverage can end shell has a curl defining a perimeter of the can end, a chuckwall extending downwardly and radially inwardly from the curl, a generally U-shaped countersink joining the chuckwall to an outer peripheral edge of a center panel, a method of forming an arcuate chuckwall in the beverage can end shell is described. The method of forming the arcuate chuckwall comprises the steps of providing a partially formed can end, providing an upper tooling having an annular, generally arcuate segment, and providing a lower tooling having a circumferential, generally arcuate, outwardly convex segment in at least partial alignment with the annular, generally arcuate segment of the upper tooling. The annular, generally arcuate segment of the upper tooling and the circumferential, generally arcuate, outwardly convex segment of the lower tooling are brought into engagement with a public side and a product side of the partially formed can end, respectively. A portion of the partially formed can end is reformed to form a circumferential, generally arcuate, outwardly convex segment located between an upper bend in the can end having a center of curvature above a public side of the can end and a lower bend in the partially formed can end having a center of curvature below the public side of the partially formed can end.