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. 10, 2008
Filed:
Dec. 23, 2003
Applicants:
Hajo Rieck, Grafschaft, DE;
Martin Gray, Flintshire, GB;
Richard Chalk, Flintshire, GB;
Inventors:
Assignee:
Ball Packaging Europe GmbH, Ratingen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 51/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for forming a sheet metal lid. At least one projection is formed twice. First, the projection is shaped from a panel of the sheet metal lid, the pre-form being located near an attaching portion of a tab, but at a distance from the mounting place. Second, at least a front edge of the pre-form of the at least one projection is re-formed. No score line is provided in the panel, neither during shaping, nor during re-forming. An improved blocking for an outer edge portion of the attaching portion is thus obtained, the outer edge portion being associated with the front edge.