Package making – Methods – Conforming by stretching or shrinking of cover over contents
Patent
1991-08-15
1996-06-04
Sipos, John
Package making
Methods
Conforming by stretching or shrinking of cover over contents
53399, 53556, 53587, 53588, B65B 1104
Patent
active
055222030
ABSTRACT:
Stretch wrapping packaging material on a load includes introducing such wrapped packaging material onto tips of projecting portions of the first grooved rollers so that the packaging material spans the nonprojecting portions of the first grooved roller. The web of the packaging material on the first grooved roller are transported in the direction generally parallel to the grooves by powering the first grooved roller. The web of the packaging material spanning the nonprojecting portions of the first grooved roller is impinged by the tips of the projecting portions of an idling second grooved roller to stretch the sheet between the projecting portions of the first and second grooved rollers in a direction transverse to the direction in which the sheet is transported. The web is preferably separated from second grooved surface either before or simultaneous with its separation from the first grooved roller.
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Fain John
Lancaster William G.
Lancaster, III Patrick R.
Martin Curtis
Moore Phil
Lantech Inc.
Moon Daniel
Sipos John
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