Package making – Methods – With contents treating
Reexamination Certificate
2006-07-18
2006-07-18
Sipos, John (Department: 3721)
Package making
Methods
With contents treating
C053S450000, C053S441000
Reexamination Certificate
active
07076930
ABSTRACT:
The machine for the packaging of products with stretchable and thermoplastic film comprises:—Means for the tubularization of a wrapping film (5) taken from a feeding bobbin and means (6) for the longitudinal tight-seal welding of the super-imposed edges of such tubularized film;—Means (7, 7′) which alternate in the transversal grip of the head of the tubular wrapping which comes out from said tubularization means, which are pre-arranged for the longitudinal movement of said wrapping, to longitudinally stretch it and to perform on same two transversal, parallel and tight seal weldings, a transversal cut placed between the said weldings and to retain the wrapping upstream and downstream of the two welded zones separated by the cut,—Means (2, 3, 4) for the cyclical introduction of a product (P) through the inlet of said tubularization means (1) and up to its outlet;—Means (10) to temporarily support the packaging being formed;—Means (12, 12′) to stop the forward movement of the tubular wrapping on the outlet mouth of said tubularization means (1), to allow the longitudinal stretching of the wrapping in its formation phase, under the action of the active one of said gripping, double welding and interposed cutting means (7, 7′);—A conveyor (11) for taking and moving away the formed packaging (Z).
REFERENCES:
patent: 2914893 (1959-12-01), Berst
patent: 3274746 (1966-09-01), James et al.
patent: 3589091 (1971-06-01), Cloud
patent: 3816969 (1974-06-01), Zimmerman et al.
patent: 3958390 (1976-05-01), Pringle et al.
patent: 4033089 (1977-07-01), Byland
patent: 4144697 (1979-03-01), Suga
patent: 4872302 (1989-10-01), van Eijsden et al.
patent: 5237800 (1993-08-01), Omori
patent: 5341623 (1994-08-01), Siegel
patent: 5653093 (1997-08-01), Delledonne
patent: 2 124 176 (1984-02-01), None
patent: 2 233 305 (1991-01-01), None
patent: WO 02/066329 (2002-08-01), None
Patent Abstracts of Japan vol. 015, No. 468 (M-1184), Nov. 27, 1991 & JP 03 200505 A (Omori Mach Co Ltd), Sep. 2, 1991, abstract.
A.W.A.X. Progettazione E Ricerca
Petry Marvin
Sipos John
Stites & Harbison PLLC
LandOfFree
Process and machine for packaging products with stretchable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and machine for packaging products with stretchable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and machine for packaging products with stretchable... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3563818