Paper dish
OwnerJonathan Sammoninventor
Life of this patent
Estimating the term…
Abstract
Paper dishes, such as plates and bowls, can be formed by pressing a flat sheet of paper into a three-dimensional shape. These paper dishes can have a generally square shape with generally straight edges and generally curved corners. In some designs, these paper dishes can have a side wall that varies from a steep wall angle in the straight areas of the dish and a more shallow wall angle in the curved areas or corners. The blank from which the dish is formed can have score lines which guide the formation of pleats in the paper during pressing. The score lines are oriented perpendicular to a baseline that has continuously variable curvature, with tighter curvature in the corners of the plate, and less curvature in the straight sections of the plate. The score lines generally do not share a common center.
Claims20
A non-round paper dish comprising
- a bottom having four corners and four sides,
- a side wall that extends upwardly from the bottom along each of the four corners and four sides of the bottom, wherein a corner angle is formed between a line perpendicular to the bottom and side wall at each of the four corners, a side angle is formed between the line perpendicular to the bottom and the side wall at each of the sides, and the side angle is greater than the corner angle.
A paper blank adapted to be pressed into a non-round paper dish, the blank comprising
- a sheet of fiber based material having four corners and four sides, and
- a plurality of score lines formed in the sheet of fiber based material,
- wherein each of the plurality of score lines extend from an edge of the blank.
A method of making a non-round paper dish, the method comprising
- providing a paper blank, the paper blank including
- a sheet of fiber based material having four corners and four sides, and
- a plurality of score lines formed in the sheet of fiber based material, wherein each of the plurality of score lines extend from an edge of the blank toward an intersection point;
- and
- pressing the paper blank so as to form pleats via folds at the plurality of score lines to establish a non-round paper dish, the paper dish including
- a bottom having four dish corners and four dish sides,
- a side wall that extends upwardly from the bottom along each of the four dish corners and four dish sides of the bottom, wherein a corner angle is formed between a line perpendicular to the bottom and side wall at each of the four dish corners, a side angle is formed between the line perpendicular to the bottom and the side wall at each of the four dish sides, and the side angle is greater than the corner angle.
Dependencies are inferred from the claim text.