Method for the production of prismatic containers with plane gab

Details Method for the production of prismatic containers with plane gab Method for the production of prismatic containers with plane gab

1988-12-12

1990-01-09

Coan, James F.

Package making

Methods

Enclosing contents within progressively formed web means

53476, B65B 912, B65D 7548

Patent

active

048919292

ABSTRACT:
In a method of forming prismatic liquid containers from continuously fed tubing, lateral regions of the tube to be connected by sealing strips are pressed inwardly before adjacent gable surfaces of the tubing are pressed together and sealed, thereby avoiding the formation of unsightly projections and any internal air cushion.

REFERENCES:
patent: 3006121 (1961-10-01), Omori
patent: 3263391 (1966-08-01), Wallsten
patent: 3426499 (1969-02-01), Paige
patent: 3456861 (1969-07-01), Weltlen
patent: 3543467 (1970-12-01), Leasure
patent: 4081943 (1978-04-01), Leasure et al.
patent: 4637199 (1987-01-01), Steck et al.
patent: 4747253 (1988-05-01), Schulte

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