08161787 cites 2 patents.

The invention generally relates to a tab used to open food can ends and beer/beverage can ends. The tab has a nose portion located at a front end of the tab and a lift portion located at a back end of the tab. The tab also has a rivet receiving portion located proximate to the nose portion with a rivet hole. The rivet receiving portion is coupled to the nose portion. The rivet hole has a non-round perimeter with a first diameter portion and a second diameter portion. The first diameter portion has a plurality of first arcuate segments and the second diameter portion has a plurality of notches. The second diameter portion is greater in length than the first diameter portion. Tooling for the manufacture of the tab is also provided. A method for manufacturing the tab is additionally provided as well.

Title
Tab, tooling for the manufacture of the tab and method of manufacturing the tab
Application Number
12/693544
Publication Number
8161787 (B2)
Application Date
January 26, 2010
Publication Date
April 24, 2012
Inventor
Mark Richard Mitchell
Sidney
OH, US
Craig Allen McEldowney
Russia
OH, US
Agent
Grant E Coffield
Eckert Seaman Cherin & Mellott
Assignee
Stolle Machinery Company
CO, US
IPC
B21D 22/00
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