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:
Jan. 22, 1991
Filed:
Nov. 06, 1989
Applicant:
Inventor:
Masashi Watanabe, Yokohama, JP;
Assignee:
AB Tetra Pak, Lund, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156 69 ; 1562744 ; 156497 ; 156499 ; 156D / ; 220270 ; 220359 ; 493103 ;
Abstract
A method and device to attach a strip tape onto a packaging web having a liquid-pouring hole by a heating element, which is provided with heating coils and an air hole, and a pressure rail which has a tape escape, so that when the strip tape is heat sealed on the packaging web, air is blown to a part of the strip tape covering the liquid-pouring hole so as to loosen such part into the tape escape.