Package making – Methods – Forming or partial forming a receptacle and subsequent filling
Patent
1977-07-07
1979-01-02
Spruill, Robert Louis
Package making
Methods
Forming or partial forming a receptacle and subsequent filling
53140, 15624414, 15624419, B65B 302, B65B 912
Patent
active
041320514
ABSTRACT:
A method of manufacturing packing containers from a thin flexible plastic material intended to be enclosed within an outer shell of stiffer material for reinforcing purposes in which a plastic tube is extended from an annular extrusion die into which a filling pipe extends. The filling pipe is divided into a number of branch pipes arranged in a row and each of these branch pipes is entered into a corresponding longitudinally extending section of the interior of the extruded tube established between parallel spaced sealing zones formed between the front and back walls of the extruded tube which is expanded and thereafter somewhat flattened for this purpose. Longitudinally spaced transverse sealing zones are then formed across the flattened and filled tube sections and cuts are then made through the longitudinally and transversely extending seaing zones thus dividing them into individual filled containers.
REFERENCES:
patent: 2616232 (1952-11-01), Meyer
patent: 2827742 (1958-03-01), Bursak
patent: 2872766 (1959-02-01), Meissner
patent: 2962843 (1960-12-01), Hoelzer et al.
patent: 3306001 (1967-02-01), Peppler
patent: 3993810 (1976-11-01), Bonis
patent: 4021283 (1977-05-01), Weikert
Spruill Robert Louis
Tetra Pak Developpement SA
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