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:
Oct. 30, 2012
Filed:
Oct. 14, 2005
Tom Kjelgaard, Lund, SE;
Bengt Andersson, Malmo, SE;
Tom Kjelgaard, Lund, SE;
Bengt Andersson, Malmo, SE;
Tetra Laval Holdings & Finance S.A., Pully, CH;
Abstract
The disclosure relates to a method of producing a blank () of thermosealable and creased packaging laminate for a microwave-friendly packaging container, comprising the steps of: (a) advancing a continuous web () of a base laminate () in a conversion line for the packaging laminate so that continuous blanks for said packaging containers are oriented with their top-to-bottom direction transversely of the machine direction of the conversion line and with a top-to-bottom interface (), (b) providing said base laminate () with creases and cutting into said blanks () of the packaging laminate, a continuous strip () of a material which conducts heat and electricity being applied in the machine direction in a region over said top-to-top/bottom interface () and in conjunction with step (a), and an elongate opening indication () being provided, before or after the application of the strip () so that the opening indication is positioned within the region of said strip. The disclosure also relates to a thus produced blank, as well as a packaging container which is formed using such a blank as the point of departure.