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:
Aug. 23, 1983
Filed:
Aug. 25, 1981
Applicant:
Inventor:
Erling I Nilsson, Trastvagen, SE;
Assignee:
Tetra Pak Developpement SA, Pully-Lausanne, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; B65D / ;
U.S. Cl.
CPC ...
220257 ; 220258 ; 220270 ; 220307 ;
Abstract
The invention relates to a cap for containers intended for the keeping of pressurized contents. The cap has two parts, joined along a tearing indication. The two parts along their lower edge zones, are bridged by a disc of gastight aluminum foil, adapted so that it is torn up along an annular rupture line when the cap is opened.