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:
Mar. 23, 1976
Filed:
Jul. 23, 1974
Obert M Ostrem, Westmont, IL (US);
Donald F Kulikowski, Oak Forest, IL (US);
Continental Can Company, Inc., New York, NY (US);
Abstract
This disclosure relates to the forming of folds in a container panel for the purpose of providing a protective fold both about the periphery of a removable panel segment and about the portion of the container panel from which the removable segment has been removed. The two folds are formed in a continuous operation with first one fold being formed and then the other fold being formed without effecting the rupture of the container panel intermediate the folds along a previously formed line of weakening. A die set is provided for properly supporting the various portions of the container member and for applying pressures on the various panels so as to effect a first folding and then a second folding while supporting that panel of the container member containing the line of weakening so as to prevent rupture thereof along the line of weakening.