B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
B65B 9/08 (2006.01)
Patent
CA 2187390
A method of continuously forming, filling and sealing of packages with a continuous web of polyethylene film material is disclosed and comprises the steps of folding the web to provide confronting sides joined along a bottom edge and sealing by training the web onto a vertical seal former having plurality of vertical sealers and progressively forming each vertical seal as the web is being continuously moved with the vertical sealer while at the same applying a low temperature sealing action to allow the area of the film being sealed to be progressively cooked. This process forms a series of horizontally disposed pouches severed by the vertical seals extending transversely of the web leaving sealed side edges of each pouch partially severed from one another with upper portions of each pouch also remaining connected with adjoining pouches and having opposed sidewalls of each pouch unsealed along a top edge preparatory to filling. Opened pouches are then filled prior to sealing a top portion of the opposed sidewalls of each pouch together to enclose the filled pouches with a final pouch closing seal there after added. A packaging apparatus is also provided continuously forming filled and sealed packages each having an expanded bottom end capable of receiving a greater amount of fill.
Cassan Maclean
Cloud Corporation
LandOfFree
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