Mixing bag and bag making apparatus

Details Mixing bag and bag making apparatus Mixing bag and bag making apparatus

1983-10-14

1985-12-10

Lowrance, George E.

Special receptacle or package

For mixing

206568, 383 38, 383 44, B65D 3024

Patent

active

045573778

ABSTRACT:
A bag suitably for mixing has a compartment, a pocket in the bag having a mouth opening so that either it can be filled with liquid to a predetermined volume or it can receive a dispensing member. The pocket is easily ruptured when the mouth is closed and, when mixing, a volume of liquid may be discharged into the compartment for mixing with a material in the compartment. During mixing the walls of the pocket abut to serve as a non-return valve in the bag.
Apparatus for making the bags includes web bonding means, feeding means to feed film of waterproof thermoplastics material from rolls to the bonding means, and interrupting means to form the mouth in the pocket.
The apparatus may form bags with open bottoms for insertion of the material for mixing and subsequent closure or sealed, filled bags.

REFERENCES:
patent: 2800269 (1957-07-01), Smith
patent: 3065899 (1962-11-01), Means et al.
patent: 3189252 (1965-06-01), Miller
patent: 3297152 (1967-01-01), Corella
patent: 3367485 (1968-02-01), Schneider et al.
patent: 3419258 (1968-12-01), Ritchie
patent: 3545604 (1970-12-01), Gunther, Jr.
patent: 3565738 (1971-02-01), Kirkpatrick
patent: 4391404 (1983-07-01), Welter

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