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US 5,236,119 AGranted
Paper plate
OwnerMing-Hsiang Chuinventor
Life of this patent
Estimating the term…
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OwnerMing-Hsiang Chuinventor
Estimating the term…
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.
A paper plate pressure formed from a substantially rectangularly contoured paper board blank having rounded sections, each of said corner sections having a plurality of fanned indentations formed therein, said paper board blank being fabricated into said paper plate by means of pressure formation defining corner creases shaped from said fanned indentations and further defining rib members for dividing said paper plate into individual compartments, wherein the improvement comprises:
Dependencies are inferred from the claim text.