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:
Jun. 08, 1982
Filed:
Jul. 10, 1979
Luigi Del Bon, 4663 Aarburg, CH;
Other;
Abstract
A sealed can or similar container having a can body the wall of which is internally lined with a coating is sealed with a deep-drawn membrane in a manner which leaves on the inside of the can wall surrounding a can top opening an annular zone uncovered by said membrane, but with the coating of the can wall intact, which annular zone extends between a lower internal edge of a rim-covering part of the membrane and the upper edge of a collar part of the membrane, which collar part is integral with, and extends upwardly from and surrounds a flat part of the membrane which covers the said can opening, and which collar part is glued or welded to the inside of the can wall beneath said uncovered zone. A preformed closure element destined for sealing fastening in a can opening, a process and apparatus for producing a rupturing zone in which preformed closure element, and a process and apparatus for manufacturing a sealed can with the aid of the preformed closure element are also described.