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:
Aug. 08, 1978
Filed:
May. 10, 1976
Applicant:
Inventors:
Robert L La Barge, Ben Avon, PA (US);
Robert G Clawson, Pershing, IN (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220266 ; 220367 ; 220D / ;
Abstract
A sheet metal container wall or end closure is provided which includes a weakening line in the sheet metal and a rib formed across the weakening line to facilitate rupture of the residual metal in the weakening line. Such container wall may also have a hollow button formed in it with the weakening line and rib formed in the button whereby flexing of the button stresses the rib and weakening line to initiate rupture of the residual metal in the weakening line.