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:
Jul. 31, 1979
Filed:
Jul. 21, 1978
Applicant:
Inventor:
Daniel F Cudzik, Richmond, VA (US);
Assignee:
Reynolds Metals Company, Richmond, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220270 ;
Abstract
A method of manufacturing a tab (43) of the type attachable to an easy-open contained wall to initiate severance of a tear panel of the contained wall, including an initial step of placing a protruding stitch (45) in a sheet metal strip (47) from which the tab is to be formed. Thereafter, a tab blank (51) is cut in the strip of sheet metal, with this cut starting and ending immediately adjacent to opposite sides of the stitch, but the cutting die is separated slightly from the stitch. Thereafter, the outer periphery (61) of the tab blank is curled onto the inner surface of the tab blank. The stitch is then severed adjacent the tab.