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. 30, 1983
Filed:
Mar. 09, 1981
Applicant:
Inventor:
Rolf L Ignell, Grilly, FR;
Assignee:
Tetra Pak Developpement SA, , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
2942 / ; 29432 ; 29511 ;
Abstract
The invention relates to a method for manufacturing a packing container from a seamless tubular blank of plastic material having a wall thickness greater than the wall thickness of the packing container to be produced therefrom. One end of the tubular blank is sealed and an annular edge ferrule is joined to the other end. The tube is heated until softened and then caused to expand in a mold to a predetermined shape.