Package making – Progressively seamed cover web or web folds – With closing of web between package units
Patent
1996-03-15
1997-11-11
Sipos, John
Package making
Progressively seamed cover web or web folds
With closing of web between package units
533737, 533744, 533745, 533746, B65B 906
Patent
active
056851316
ABSTRACT:
Heat-sealing device including mutually opposite active heads that are associated with respective counter-rotating driving shafts and are subjected to the action of cam elements that move the heads along a path that is partially parallel to a continuous tubular container that includes the products to be packaged. The oppositely arranged active heads, during the rotation of the respective counter-rotating driving shafts, move mutually closer to clamp the tubular container in the region that separates one product from the other and to perform the heat-sealing of that region and the cutting of the container that separates each package from the adjacent one. A planetary-gear system is interposed between the active heads and the corresponding driving shaft to make the individual heads, during the rotation of the driving shaft, perform a revolving motion that keeps them parallel to themselves, and to cause the mutual approach of the mutually opposite heads in a mutually parallel relationship along an approach path that is substantially perpendicular to the tubular container.
REFERENCES:
patent: 4949846 (1990-08-01), Lakey
patent: 5001891 (1991-03-01), Abate
patent: 5131213 (1992-07-01), Shanklin et al.
patent: 5279098 (1994-01-01), Fukuda
patent: 5347795 (1994-09-01), Fukuda
patent: 5584166 (1996-12-01), Lakey
Patent Abstracts of Japan vol. 16, No. 311 (M-1277), 8 Jul. 1992 & JP-A-04 087931 (Fukuda Masao), 19 Mar. 1992, *abstract*.
Patent Abstracts of Japan vol. 17, No. 403 (M-1453), 28 Jul. 1993 & JP-A-05 077805 (Ishida Scales Mfg Co Ltd), 30 Mar. 1993, *abstract*.
Patent Abstracts of Japan vol. 18, No. 56 (M-1551), 28 Jan. 1994 & JP-A-05 278729 (Ishida Scales Mfg Co Ltd), 26 Oct. 1993 *abstract*.
Delsanto Mario
Spatolisano Francesco
Hitech Systems S.r.l.
Josif Albert
Kim Gene L.
Modiano Guido
Sipos John
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