Package making – Methods – Closing package or filled receptacle
Patent
1982-03-08
1985-11-05
Culver, Horace M.
Package making
Methods
Closing package or filled receptacle
53410, 53456, 53469, 53403, 53404, 493213, 493220, B65B 5102, B65B 128, B65B 318
Patent
active
RE0320188
ABSTRACT:
Method of manufacturing a filled packaging container comprising the steps of forming a bag on a mandrel, connecting a seam provided in a formed bag, forming a hole on an upper side of the bag and inserting a valve into the hole to provide an air pressure release after filling the container with a material. Two opposite edges of the valve are formed with two flexible portions made of foil. A sealing fluid is applied in the channel to provide a fluid film to connect the foil portions.
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Domke Klaus
Saur Walter
Culver Horace M.
Robert & Bosch GmbH
Striker Michael J.
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