Package making – Progressively seamed cover web or web folds – With closing of web between package units
Patent
1992-11-19
1995-05-23
Culver, Horace M.
Package making
Progressively seamed cover web or web folds
With closing of web between package units
53557, 533735, B65B 906, B65B 6100, B65B 6108
Patent
active
054170419
ABSTRACT:
A continuously operating machine is provided for wrapping articles with a heat shrinkable plastic film automatically and sequentially. Articles are continuously, transferred along a horizontal pathway to a plurality of processing stations. At a first station, articles are tubularly overwrapped and sealed along a side edge thereof with excess film material being automatically trimmed away. Next, the articles are separated one from the other at a second station and at a last succeeding station, the resulting wrapped articles are subjected to thermal film shrinking. The side seal and trim apparatus includes a heat seal and trim unit which engages free side edges of the film tube to one another and trims excess away, the unit being sandwiched between drive and alignment members.
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Brett Edmund D.
Hansen Frank E.
Clamco Corporation
Culver Horace M.
Meroni, Jr. Charles F.
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