Folding tray

Details Folding tray Folding tray

1987-02-25

1988-01-12

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

Including a polygonal, nonrectangular wall

229170, 229186, B65D 524

Patent

active

047185961

ABSTRACT:
A folding tray is formed by a single foldable blank which includes a bottom wall, lateral walls, and corner sections. The lateral walls and corner elements include border sections which form a horizontal rim around the periphery of the tray. Each corner section includes a generally rectangular center part and a pair of transition sections on either side thereof. Each transition section comprises a pair of triangular parts joined to each other by a fold line and joined to the center part and associated lateral wall by fold lines. Between the center part and its associated border section is a lens-shaped equalizer section which avoids the creation of an abrupt angle between the center part and border section to enable the border section to lie flat in the erected tray. The equalizer section is defined by a pair of curved fold lines which converge to form points situated adjacent the respective transition sections.

REFERENCES:
patent: 3536248 (1970-10-01), Odenhagen
patent: 3550835 (1970-12-01), Persson
patent: 3669340 (1972-06-01), Kinney
patent: 3701467 (1972-10-01), Johansson
patent: 4018378 (1977-04-01), Persson

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