Patent ID: 6779318
Filing Date: 2004-08-24
Classification: B65B

Abstract:
A method of continuously forming, sealing and filling flexible packages with materials, comprising:feeding a continuous web of plastic sheet material into a package-forming unit; outputting a continuous web of packages including a series of juxtaposed shaped packages from the forming unit, the shaped packages having a closed bottom; two open sides, and an open top defining a fill opening; sealing the open sides while continuously feeding the web of packages through a side-seaming unit; filling the packages with liquid through said open tops while continuously feeding the web of packages through a filling unit; sealing the open top of the respective packages while continuously feeding the web of packages through a top sealing unit; severing the respective filled and sealed packages from the web to form individual packages therefrom; maintaining a sterile environment during said outputting, said sealing the open sides, said filling, and said sealing the open top; and maintaining a clean, but non-sterile, environment during said severing.