Package making – Group forming of contents unit and subsequent or further... – Layer – stack – or column
Patent
1988-08-31
1989-09-26
Culver, Horace M.
Package making
Group forming of contents unit and subsequent or further...
Layer, stack, or column
53228, 53373, 1565837, B65B 1150, B65B 5114
Patent
active
048690511
ABSTRACT:
Apparatus for wrapping and sealing stacks of paper sheets from the output of high speed copiers and printers. The apparatus includes a paper handling assembly, a sealing assembly, rolls of a plastic film material, and a tote or hopper system. The paper handler permits single sheet feeding and inverting of sheets when desired. The sealing assembly wraps the stack of sheets with the plastic film and lowers a U-shaped sealing bar assembly around the wrapped package to seal simultaneously three sides thereof. Two of the three sides are parallel and near the edge of the plastic film, and are sealed with non-severing type seams. The third side is perpendicular to the other two sides and is sealed with a severing type seam. The severing type seam is made with a heating element on one side of the sealed plastic layers, and a non-heated cut-off wire located on the other side. The cut-off wire is also used to control the temperature in the seal area.
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The Vertrod Guide to Thermal Impulse Heat Sealing Machinery, "Table of Contents" (p. 2) and Standard Vertrod Thermal Impulse Heat Sealing Machines (p. 9), (Oct. 1986).
Dobbertin Michael T.
Forrest Wayne W.
Hubbard Charles R.
Shifley James D.
Culver Horace M.
Eastman Kodak Company
Hanway J. R.
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