Package making – Progressively seamed cover web or web folds – With closing of web between package units
Patent
1977-10-11
1980-09-02
Sipos, John
Package making
Progressively seamed cover web or web folds
With closing of web between package units
53568, 53372, 53373, B65B 906, B65B 5126
Patent
active
042199883
ABSTRACT:
An automatic high-speed wrapping machine for wrapping packages in heat sealable thermoplastic film is disclosed wherein the film seal at the side and ends of the packages is made at a high rate of speed as the packages travel through the machine. The packages travel continuously in a straight line through the machine and are delivered at the input end of the machine by a flighted infeed conveyor into a film inverting head where the packages are surrounded by the film, thence to the side sealing mechanism which forms a seal while severing the selvage from the packages, then into an end sealing mechanism where both ends of the packages are sealed and the film web connecting succeeding packages is severed. The machine produces packages which have a sealed film wrap around the entire package which is then in condition for subsequent shrinking of the film if desired to provide a package having a tight film overwrap.
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King, Jr. Francis X.
Shanklin Frank G.
Pfund Charles E.
Shanklin Corporation
Sipos John
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