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:
Sep. 21, 1982
Filed:
Oct. 02, 1980
Shunji Kaneko, Ebina, JP;
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Abstract
An easy open can cap has an elongated tear strip defined by a main score and a ring pull tab attached to the tear strip by a rivet. A bending score is provided on the tear strip near the rivet, the bending score extending perpendicular to a longitudinal extending center line of the tear strip so that when the ring pull tab is initially lifted, the tear strip bends at the bending score to thereby reduce the applied force necessary for initiating opening of the tear strip. The main score has a starting end portion extending partially around the area of said rivet and a terminating end portion at the opposite end of the tear strip, the main score having a transitional portion between the starting end portion and the terminating end portion with the transitional portion having a thinner score residual than that of the starting end portion.