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DISPOSABLE SERVINGWARE CONTAINERS WITH FLANGE TABS

  • US 20090215599A1
  • Filed: 04/28/2009
  • Published: 08/27/2009
  • Est. Priority Date: 06/27/2002
  • Status: Abandoned Application
First Claim
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1. A method of press-forming a paperboard blank into a disposable servingware container comprising:

  • (a) providing a generally planar paperboard blank which includes a central portion defining generally a perimeter thereof as well as at least a first and second peripheral tabs extending outwardly from the central portion beyond the perimeter of the central portion, the peripheral tabs being configured so as to define a first cross-tab dimension between their outer edges generally parallel to and of like extent with a corresponding transverse dimension across the paperboard blank perimeter;

    (b) transferring said paperboard blank to a segmented die set while controlling its orientation utilizing said first and second peripheral tabs such that the paperboard blank is disposed in the segmented die set in a predetermined orientation with respect thereto;

    (c) press-forming said paperboard blank into a disposable container having a generally planar bottom portion;

    a first annular transition portion extending upwardly and outwardly from the generally planar bottom portion;

    an optional sidewall portion extending upwardly and outwardly from the first annular transition portion;

    a second annular transition portion flaring outwardly with respect to the first annular transition portion;

    an outer flange portion extending outwardly with respect to the second annular transition portion defining generally the container perimeter; and

    at least first and second generally planar peripheral tabs corresponding to the tabs of the paperboard blank extending outwardly from the flange portion of the container generally beyond the container perimeter;

    and wherein said die set includes a punch base member with a punch outer container contour portion, a punch knock-out mounted for reciprocating motion with respect to the punch base member and a pressure ring mounted for reciprocating motion with respect to the punch base member.

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