Package making – Apparatus for contraction of cover by stretching or shrinking
Patent
1992-07-30
1994-05-17
Sipos, John
Package making
Apparatus for contraction of cover by stretching or shrinking
53588, B65B 1312
Patent
active
053117255
ABSTRACT:
A stretch wrap packaging machine includes a support frame and a rotatable frame rotatably mounted on the support frame. A dispenser is mounted on the rotatable frame to follow an orbital path. The dispenser has a web tensioning system which is selectably operable in a plurality of states. At least one actuation ring is moveably mounted on the support frame for cooperation with the tensioning system and selectively rendering the tensioning system operable in each of the plurality of states of operation throughout the orbital path. An activator moves the actuation ring to cooperate with the tensioning system. The tensioning system may include prestretch rollers connected by an engageable clutch. The tensioning system may also include at least one power assisted roller which is connected by a clutch to a power source.
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Fain John
Lancaster Jim
Martin Stuart
Lantech Inc.
Moon Daniel
Sipos John
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