Package making – Methods – Forming or partial forming a receptacle and subsequent filling
Patent
1983-05-10
1985-08-13
Sipos, John
Package making
Methods
Forming or partial forming a receptacle and subsequent filling
53468, 53469, 53479, 53268, 53570, 53434, 53512, 141 10, 141114, 383 94, B65B 304
Patent
active
045341540
ABSTRACT:
The present method comprises the steps of positioning a bag on a supporting surface, the bag consisting of flexible film material such as plastic laminate. The bag is so constructed that its side walls are sealed along their peripheries, with one end having an unsealed portion. A filling hole is provided in one side wall of the unsealed bag portion. The bag before filling is flat, or in other words it is not inflated with air or other gas. The side walls of the unsealed portion (preferably a corner of the bag) are then separated to form an opening into which means is introduced to effect sealed registration of a filling head with the bag filling hole. A measured amount of liquid is then delivered through the filling opening to fill the bag, and after the bag has been filled the unsealed end portion of the bag is heat sealed to form a completely sealed bag. Before filling, it is desirable to evacuate air from the bag by applying suction. The machine for carrying out the foregoing method in an automated fashion, consists of one or more operating assemblies each having means for opening one end portion of the bag, means for establishing sealed registration of the filling opening with a filling head, means for supplying liquid through the filling head to carry out the filling operation, and means for releasing the bag after the filling and sealing operations. The machine may be fed with prefabricated bags, or it may be fed automatically from a bag fabricating machine.
REFERENCES:
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patent: 2708067 (1955-05-01), Paton
patent: 2861406 (1958-11-01), Holsman et al.
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patent: 3261379 (1966-07-01), Stockel et al.
patent: 3894381 (1975-07-01), Christine
patent: 4055032 (1977-10-01), Hammond
patent: 4077182 (1978-03-01), Papaluca
patent: 4120134 (1978-10-01), Scholle
patent: 4274554 (1981-06-01), Malpas
Sipos John
Studebaker Donald R.
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