Manufacturing container or tube from paper; or other manufacturi – Container making – Rigid container
Patent
1995-06-02
1998-01-06
Culver, Horace M.
Manufacturing container or tube from paper; or other manufacturi
Container making
Rigid container
493 62, 493399, 493402, 493404, 83 37, 83345, 83885, B31B 116, B31B 125, B26D 122
Patent
active
057048860
ABSTRACT:
A container and corresponding blank from which such container is formed is particularly suitable for packaging liquid products and aseptically packaging liquid foods. The rectangular shaped blank may be formed of a laminated sheet material that preferably includes a composite of paperboard web, aluminum foil and intermediate layers of heat sealable polymer. All blank fold lines are scored and an induction sealing flange area is provided around the entire blank perimeter. A unit of several sheet linked blanks is symmetrically folded about a central axis for juxtaposed alignment of sealing flange area around the perimeter of the unfolded blank. After induction sealing, the package side flange at the bottom of the unit, the resulting tube pocket is open and charged with a material quantity of liquid. After charging, the series of edge flanges above the first sealed edge flange are also induction sealed and severed from the unit remainder to complete a pillow shaped package. With fluid contents encapsulated, the pillow-shaped package includes a standing flange seam around three of four edges. The pillow corners are collapsed along diagonal corner score lines to triangular gable points and the side and ends of the pillow mechanically erected to orthographic planes with the standing seams and corner gable points folded flat against an adjacent plane.
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Sampaolo Guido
Tanczos Robert
Wynne David Scott
Culver Horace M.
International Paper Company
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