Method for packing a rectangular inner bag for loading into cyli

Details Method for packing a rectangular inner bag for loading into cyli Method for packing a rectangular inner bag for loading into cyli

1999-07-15

2000-07-18

Vo, Peter

Package making

Methods

Plural covers

100215, 141114, B65B 1158

Patent

active

060890029

ABSTRACT:
An inexpensive inner bag loaded into a cylindrical container such as a drum. The inner bag has excellent airtightness and facilitates transferring the inner bag to a separate container. The inner bag comprises two hexagonal first sheets and two pentagonal second sheets. Each first sheet has a pair of opposite sides extending longitudinally and a trapezoidal portion formed around one longitudinal end of the sheet. Each second sheet has a pair of opposite sides extending longitudinally and a triangular portion formed around one longitudinal end of the sheet. The first and second sheets are placed in an opposite relation to each other. The peripheries of the first and second sheets, excluding the other ends, are bonded together by heat-sealing.

REFERENCES:
patent: 1916493 (1933-07-01), Solomon
patent: 2092969 (1937-09-01), Gustafson
patent: 2432122 (1947-12-01), Pardee
patent: 2673024 (1954-03-01), Kuss
patent: 3001207 (1961-09-01), Nail
patent: 3119548 (1964-01-01), Cook
patent: 4489768 (1984-12-01), Scoles
patent: 5213141 (1993-05-01), Dorman

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