Guido M Sampaolo

US Patent:

59712660, Oct 26, 1999

Filed:

Dec 30, 1997

Appl. No.:

9/001099

Inventors:

Guido Sampaolo - Cary NC
David Scott Wynne - Raleigh NC
Robert Tanczos - Cedar Rapids IA

Assignee:

International Paper Company - Purchase NY

International Classification:

B65D 540

US Classification:

229137

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 areas 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.

US Patent:

57048860, Jan 6, 1998

Filed:

Jun 2, 1995

Appl. No.:

8/459123

Inventors:

Guido Sampaolo - Cary NC
David Scott Wynne - Raleigh NC
Robert Tanczos - Cedar Rapids IA

Assignee:

International Paper Company - Purchase NY

International Classification:

B31B 116
B31B 125
B26D 122

US Classification:

493 60

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.