Containers and machine for making them

Details Containers and machine for making them Containers and machine for making them

1981-10-08

1985-01-29

Culver, Horace M.

Package making

Methods

Plural covers

53451, 53474, 53170, 53552, 53554, 493294, 493302, 493929, 493931, B65B 912, B65B 316, B65B 317

Patent

active

044957483

ABSTRACT:
The invention provides a container preferably made from sheet plastics comprising a bag containing a tubular valve member, the bag being sealed with a seam at each end, the top seal having an opening therein for entry of an access tube into the valve member, and the valve member having a sealing seam which facilitates piercing of the access tube through the valve member into the bag. A second bag may be provided within the first bag.
The invention includes a machine for making the containers continuously from sheets of material.

REFERENCES:
patent: 2154521 (1939-04-01), Maxfield
patent: 3391047 (1968-07-01), Kopp
patent: 3479802 (1969-11-01), Fesco
patent: 3795081 (1974-03-01), Brown, Jr. et al.
patent: 3889446 (1975-06-01), Simmons et al.

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