Package making – Progressively seamed cover web or web folds – With closing of web between package units
Patent
1977-05-04
1982-02-16
Sipos, John
Package making
Progressively seamed cover web or web folds
With closing of web between package units
53229, 53586, B65B 1108, B65B 1302
Patent
active
043153941
ABSTRACT:
In a wrap-around packaging machine by means of which a film loop is wrapped around a plurality of objects, the film passes through a slit provided in a rotary tensioning roller at an end of which a driving pulley is fastened. A rope is wound around the driving pulley. One end of the rope is connected to a traction device and the other end is connected to a restoring device. The tensioning roller by the operation of the traction device can be rotated from a first defined position in which the film freely passes through the slit of the tensioning roller into a second position in which the film is clamped at the tensioning roller and the film loop is tensioned. Then after welding or heat sealing of the film loop the traction device is made inoperative and the restoring device operates in order to move back the tensioning roller into its defined first position.
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Bazerman Steven H.
Emil Pester GmbH Verpackungsmaschinen
Hemingway, Jr. Alfred H.
Sipos John
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