Stacked article packaging method

  • US 5,692,361 A
  • Filed: 10/10/1995
  • Issued: 12/02/1997
  • Est. Priority Date: 03/25/1993
  • Status: Expired due to Term
First Claim
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1. A continuous method for forming stacked article groups, comprising the steps of:

  • a) supplying at least one stream of articles at a first predetermined location and a first vertical level along a longitudinally oriented axis;

    b) forming and longitudinally transporting a stream of lower article sub-groups at said first location with an article group selection and transport mechanism having a plurality of fixed, transversely oriented, longitudinally moving flight bars which intersect said at least one stream of articles;

    c) depositing a divider structure on each said lower article sub-group at a second predetermined location along said axis, downstream from said first location, said divider structure having a thin, substantially flat, rectilinear configuration with a surface area substantially coextensive with that of the top surface of said first article group, said divider structure further having a flap member disposed along a base edge and defined by a scoreline, said flap member being foldable over one edge of the top surface of said first article group;

    d) supplying at least one stream of articles at a third location downstream from said second location, and at a second vertical level higher than said first vertical level;

    e) forming, at said third location, an upper article sub-group on each said divider structure of each said lower article sub-group with said article group selection and transport mechanism, whereby stacked article groups are formed; and

    f) transporting said stacked article groups along said longitudinal axis.

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