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. 27, 2017
Filed:
Apr. 10, 2014
Crown Packaging Technology, Inc., Alsip, IL (US);
Paul Robert Dunwoody, Oxfordshire, GB;
Andrew Robert Lockley, Oxfordshire, GB;
Philip Alan Marriot, Oxfordshire, GB;
Stephen John Osborn, Oxfordshire, GB;
Crown Packaging Technology, Inc., Alsip, IL (US);
Abstract
There is disclosed herein a method of forming a can end comprising: holding a peripheral portion of a blank between inner () and outer () peripheral tool sets; drawing a central portion of the blank against an outer center panel tool () having a central region and a sloping peripheral edge () extending to a peripheral wall () by moving the outer center panel tool () inwardly relative to the peripheral tool sets to form a drawn can end shell (); and reforming the can end shell () against an inner center panel tool () having a central region and a peripheral region by moving the inner center panel tool () outwardly relative to the peripheral tool sets to reform the drawn central portion to have a center panel defined by the central region of the inner center panel tool () and a recessed reinforcing structure extending around the center panel, wherein the sloping peripheral edge () of the outer center panel tool () has a convex radius of curvature of 2 mm or more and 30 mm or less between the central region of the outer center panel tool () and the peripheral wall () of the outer center panel tool (). A related apparatus is also disclosed.