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:
Mar. 19, 1991
Filed:
Feb. 08, 1990
Applicant:
Inventor:
Gert Holmstrom, Lund, SE;
Assignee:
Tetra Pak Holdings & Finance S.A., Pully, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219 / ; 219 1053 ; 219 1071 ; 219 1073 ; 219 1079 ; 1562742 ; 1563802 ;
Abstract
The invention relates to an inductive heating apparatus for carrying out a continuous weld along a moving web of laminated packing material (8). The apparatus includes two similar elongated metal plates (1) with two slots (2, 12). The metal plates (1) are arranged at some distance from one another and are connected electrically to one another and to an a.c. source (10). The laminated packing material (8) which is to be welded together is advanced between the two plates (1). Within the plates (1), pressure rollers (6) are arranged in a recess (5).