Package making – Methods – Forming or partial forming a receptacle and subsequent filling
Patent
1995-11-17
1998-03-03
Coan, James F.
Package making
Methods
Forming or partial forming a receptacle and subsequent filling
53468, 53477, 533851, 533861, 53562, B65B 908, B65B 4304, B65B 5116
Patent
active
057222177
ABSTRACT:
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 for continuously forming filled and sealed packages, each having an expanded bottom end capable of receiving a greater amount of fill.
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Cloud Corporation
Coan James F.
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