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. 28, 1997
Filed:
Mar. 08, 1996
Applicant:
Inventors:
Mario Spatafora, Bologna, IT;
Andrea Berti, Castel S. Pietro Terme, IT;
Assignee:
Azionaria Costruzioni Automatiche A.C.M.A. S.P.A., Bologna, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65B / ;
U.S. Cl.
CPC ...
53477 ; 533744 ; 53DI / ; 53450 ; 53451 ; 53551 ;
Abstract
In a packaging machine through which products are advanced singly and in succession along a wrapping line together with a heat-sealable wrapping film, the film is folded around each product to form a wrapper of tubular appearance with two facially confronting longitudinal edge margins, whereupon the temperature of the edge margins is raised by electromagnetic induction to soften the material in readiness for heat-sealing. The pressure required to fuse the heated confronting edge margins together is applied evenly from two opposite sides.