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:
Dec. 10, 1991
Filed:
Sep. 13, 1988
Richard O Wahler, Palatine, IL (US);
Continental Can Company, Inc., Norwalk, CT (US);
Abstract
This relates to the double seaming of an end unit to a metal can body where the end unit is of the full opening, easy opening type incorporating a pull tab for the purpose of initiating a rupture followed by pull out of an end panel of the end unit. Most specifically, the end unit is of an oblong rectangular or generally other than round outline so as to have a fixed orientation with respect to a double seam forming double seaming chuck. By having a fixed relationship between each end unit and the double seaming chuck and the pull tab with respect to the configuration of the end unit, it is possible to form a notch in the underside of the double seaming chuck to clear the pull tab. This permits the pull tab to have a force applying nose thereof positioned closely adjacent to a chuck wall of the end unit so that it may overlie a score line or weakening line formed in the chuck wall radius between the chuck wall and the end panel.