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:
May. 05, 1998
Filed:
Apr. 12, 1996
Applicant:
Inventors:
Mario Spatafora, Bologna, IT;
Andrea Berti, Castel San Pietro Terme, IT;
Assignee:
Azionaria Costruzioni Macchine Automatiche ACMA, SpA, Bologna, IT;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
1562742 ; 1563802 ; 156556 ; 156567 ;
Abstract
Elongated wrappings made of sheet material comprising a first metal component and a second heat-sealable component are end sealed by successively feeding the wrappings, by means of a conveyor, in a first given direction and along a given path through a sealing station; varying the traveling speed of the wrappings in relation to the conveyor at the sealing station; and induction heating, for a given length of time during a relative pause, the first component at the ends of each wrapping, to melt the second component.