Automatic packaging machine for boxes with paper end liners

Details Automatic packaging machine for boxes with paper end liners Automatic packaging machine for boxes with paper end liners

1996-03-26

1997-07-01

Coan, James F.

Package making

Closing packages and filled receptacles

By means adapted to engage outturned seam of package cover

533737, 533752, B65B 700

Patent

active

056425996

ABSTRACT:
An automatic packaging system closes and seals a hybrid box having end flaps with a narrow paper strip sealed to and around an inside perimeter of the box. A projecting edge of the narrow strip extends out of the box approximately as far as the outer edges of the end flaps. First, the end flaps are folded away from the narrow paper strip. A pair of spreading fingers move in synchronism with boxes while they are being carried by a conveyor. The spreading fingers are moved toward the boxes and inserted into a "bag" opening formed by narrow strip. The spreading fingers move apart for closing the projecting edges of the narrow strip and bringing the sides of the strip into face-to-face confrontation. There the sides are gripped and stretched to prevent puckers or pleats. While the projecting edges are so gripped in a face-to-face confrontation, they are sealed in order to close the "bag" opening formed by the paper strip.

REFERENCES:
patent: 2114624 (1938-04-01), Bergstein
patent: 2415978 (1947-02-01), Vergobbi
patent: 2979995 (1961-04-01), Bergstein et al.
patent: 3089298 (1963-05-01), Neuandorf et al.
patent: 3451194 (1969-06-01), Nerenberg et al.
patent: 3559372 (1971-02-01), Cerioni
patent: 4306400 (1981-12-01), Coleman et al.

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