Method of manufacturing packaging container

Details Method of manufacturing packaging container Method of manufacturing packaging container

1988-08-02

1989-07-18

Spruill, Robert L.

Package making

Methods

Enclosing contents within progressively formed web means

53551, B65B 906

Patent

active

048480630

ABSTRACT:
A method for making parallelepiped or brick-shaped containers of greater mechanical strength and better appearance, avoiding any mismatching of the printed patterns due to displaced joints in the middle of the side of the container walls. A longitudinal seal is positioned at the corners rather than on the face of the side walls, thus leaving the side walls without joints or splices. A packaging material web taped coated with thermoplastic material and provided with folding lines is twisted when passing through two bending rollers and one slack-absorbing roller and is converted into a cylindrical shaped and then sealed at the overlapping side edges. The cylindrical container is then filled with a liquid through a filler pipe and sealed at predetermined intervals.

REFERENCES:
patent: 3048951 (1962-08-01), Oler
patent: 3082583 (1963-03-01), Larson et al.
patent: 4027455 (1977-06-01), Rausing et al.
patent: 4045939 (1977-09-01), Baumstingl
patent: 4384438 (1983-05-01), Hilmersson
patent: 4606174 (1986-08-01), Berg
patent: 4617779 (1986-10-01), Nygren et al.
patent: 4784697 (1988-11-01), Bordini

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