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US 3,938,727 AGranted
Disposable cardboard plates
AssigneeDuni Bila AB
InventorKarl Gosta Bertil Andersson
Life of this patent
Estimating the term…
Abstract
A disposable cardboard plate having an origamically corrugated brim including ridges and intervening grooves. The plate has been pressed from a flat cardboard blank to form inclined end walls at the outer ends of the grooves between the ends of adjacent ridges, and a flat edge flange extending continuously around the plate to lock the corrugations in their predetermined configuration, together with said end walls.
Claims6
A plate comprising a bottom defining a predetermined contour;
- a continuous side wall surrounding said bottom and integrally joined to said bottom along said contour, said side wall extended upwardly from said bottom in an inclined fashion;
- and a brim integrally joined to and surrounding said side wall and extending generally parallel to said bottom;
- said side wall and said brim being shaped along each of a plurality of spaced portions of the circumference of said plate with an origamically folded section having a plurality of alternating grooves and ridges formed in said side wall in registration with a similar plurality of alternating ridges and respectively formed in said brim;
- an outer portion of said brim extending upwardly and away from said bottom and forming an end wall enclosing the outer end of each brim groove, to prevent passage of the contents of said plate therethrough when said plate is tilted to fill said brim grooves with said contents.
1 more element
Dependencies are inferred from the claim text.