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. 04, 1984
Filed:
Sep. 02, 1983
Applicant:
Inventor:
Wilhelm Reil, Bensheim, DE;
Assignee:
Tetra Pak Developpement, Pully, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31B / ; B31B / ;
U.S. Cl.
CPC ...
156203 ; 156466 ; 493 81 ; 493179 ; 493182 ; 493295 ;
Abstract
Pieces of tube are produced from a flat flexible web by feeding the web intermittently into apparatus which first makes transverse incisions from each edge partly across the web at a spacing equal to the desired tube lengths. The side portions between the incisions are then folded along longitudinal fold lines so that their end edges overlap and are welded together. In a subsequent operation, the non-incised central flat portion of the web is severed in line with the incisions and the tube elements thus formed are then moved transversely to the direction of web movement by a reciprocating slide to stand upright on tube-shaping members.