Envelopes – wrappers – and paperboard boxes – Paperboard box – Box material includes a coating or a nonpaperboard...
Patent
1992-11-05
1993-08-17
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Box material includes a coating or a nonpaperboard...
220527, 220555, 220556, 220575, B65D 136, B65D 144
Patent
active
052361195
ABSTRACT:
A paper plate (1) is provided which is pressure formed from a substantially rectangularly contoured paper board blank having corner sections. The corner sections include a plurality of fanned indentations (2) with the paper board blank being fabricated into the paper plate (1) through pressure formation. The fanned indentations (2) form corner creases after the paper plate (1) is pressure formed. Additionally, the pressure plate (1) defines rib members (5) which divide the paper plate (1) into individual compartments. A plurality of crescent contoured indentations (3) are provided on the paper board blank with the crescent contoured indentations (3) forming a stiffening fold member (6) which lies adjacent to and spans a top surface of a respective pressure formed rib member (5) to provide a double layer of paper board adjacent the respective rib member (5) for resisting deformation of the paper plate (1) when loads are applied.
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Elkins Gary E.
Klein David I.
Rosenberg Morton J.
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