Package making – Methods – Enclosing contents within progressively formed web means
Patent
1987-01-22
1988-07-19
Culver, Horace M.
Package making
Methods
Enclosing contents within progressively formed web means
53551, 53373, B65B 908, B65B 910
Patent
active
047576685
ABSTRACT:
To provide for continuous feed of a packaging film, the film into a tube, filling the tube into packages and severing the packages, markers are located longitudinally along the film for example of plastic; the film is fed and formed into a tube by a pulling mechanism, the drive of which is synchronized with the bag-forming operation as such, that is, sealing and severing tube portions, under control of the markers so that slippage between drive rollers or units and the film being fed or inaccuracies in operation of the filling mechanism are immediately compensated by change in speed of the drive unit or operation of the filling and bag-forming mechanism to maintain relative alignment of bag closing with respective areas on the film, preventing accumulation of positioning errors and hence possible misalignment of printed information on the film with respect to the closing seams of the bag.
REFERENCES:
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patent: 4128985 (1978-12-01), Simmons
patent: 4288965 (1981-09-01), James
patent: 4295922 (1981-10-01), Evers
patent: 4391081 (1983-07-01), Kovacs
patent: 4525977 (1985-07-01), Matt
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patent: 4563862 (1986-01-01), McElvy
Klinkel Wolfgang
Vits Dieter
Culver Horace M.
ILAPAK Research & Development S.A.
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