Package making – Methods – Applying a partial cover
Patent
1976-06-02
1979-09-18
Sipos, John
Package making
Methods
Applying a partial cover
53441, 53466, 53556, 53586, 53228, A65B 1108, B65B 1322
Patent
active
041678419
ABSTRACT:
Apparatus for wrapping a stretchable foil around goods to be packed, comprising an upper supply roller for a packing foil with a hold-down and stretch beam and a lower supply roller for a packing foil with guide and stretch means. Clamping, sealing and cutting means are provided for effecting a seal and cutting the tensioned foil wrapped around the goods, wherein the lower clamping means with the lower guide and stretch means are adapted to effect a differential tension in the lower foil web in such a manner that the tension in the foil web between guide means and goods to be packed is considerably greater than between guide means and clamping means. A method of wrapping in which a differential tension is effected in a lower foil web in a package wrapping operation between the goods and a guide, and between the guide and a clamp.
REFERENCES:
patent: 3589091 (1971-06-01), Cloud
patent: 3596434 (1971-08-01), Zelnick
patent: 3946539 (1976-03-01), Noack
patent: 3955339 (1976-05-01), Kiener et al.
B.V. Machinefabrick "Verwachting"
Lavine Irvin A.
Sipos John
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