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. 07, 1994
Filed:
Feb. 22, 1993
Applicant:
Inventor:
Anders Sjostrom, Lund, SE;
Assignee:
Tetra Laval Holdings & Finance S.A., Pully, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 43 ; 428124 ; 428192 ; 2291232 ; 2291602 ; 383205 ; 493930 ;
Abstract
Strips of material for manufacture of packaging containers are sometimes provided with aids to opening in the form of pull tabs (3), which extend transversely across the strip of material (1) When the tab (3) is folded round one longitudinal side of the strip (1) damage to the projecting tab parts is prevented by the fact that the fold is made round a part of the rear edge (4) which is provided with a cut-out (7) in the form of an arc of a circle. This is particularly important when the strip is formed into a roll, since the tab parts which project outside the end surface of the roll can easily be damaged during handling of the roll.