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:
Jul. 02, 2002
Filed:
Apr. 10, 2000
Applicant:
Inventor:
Alessandro Boschi, Gualtieri, IT;
Assignee:
Tetra Laval Holdings & Finance S.A., Pully, CH;
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/100 ;
U.S. Cl.
CPC ...
B32B 3/100 ;
Abstract
A method of fitting pull-off tabs ( ), made of heat-seal material, to strip packaging material ( ) having a number of through openings ( ) and covered, on the opposite side to that to which the tabs ( ) are fitted, with at least a first and a second lamination layer ( ) made respectively of heat-seal material and electrically conducting material and covering the openings ( ); the method including the step of joining each tab ( ) to the packaging material ( ) at a respective opening ( ) by simultaneously performing hot-plate sealing and induction sealing operations. (FIG. )