Construction of universal egg cell cushion and method
AssigneeDiamond International Corporation
InventorsKenneth D. Bixler, Henry A. Lord, Richard F. Reifers
Life of this patent
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Abstract
A new and improved molded egg cell construction and method for its manufacture, wherein the molded egg cell includes a cushion or pillopad on an up-post side wall of the cell which projects inwardly, a thin area formed on the outside of the cell adjacent its bottom which is square, the sides of which are oriented at 45.degree. to the sides and ends of the egg carton incorporating the cell, and in which the bottom is planar on its interior surface but formed with thin areas on the exterior of the bottom, in between which, is a footed formation.
Claims5
The method of forming a vertically elongated hollow thin walled cushion or pillopad on a side wall of an egg cell, including
- fastening to the screen side of the egg cell perforated mold an elongated grooved bubble shaped segment, and
- sucking, by the application of vacuum, pulp fibres from a pulp slurry on the screen and over the grooved bubble segment to form a relatively thin layer of pulp fibres in relation to the surface of said bubble segment, the vacuum on the side of the screen opposite from the bubble segment side is also present in the groove and serves to insure that fibres form in relation to the surface of said bubble segment.
The method of forming a vertically elongated hollow thin walled cushion or pillopad on a side wall of an egg cell in accordance, including
- fastening to the screen side of the egg cell perforated mold an elongated grooved imperforate bubble shaped segment, and
- sucking, by the application of vacuum, pulp fibres from a pulp slurry on to the screen and over the imperforate grooved bubble segment to form a relatively thin layer of pulp fibres over said bubble segment and over the groove, the vacuum on the side of the screen opposite from the bubble segment side is also present in the groove and serves to insure that the fibres cover the entire width as well as the length of the bubble so that the cushion or pillopad when formed is imperforate.
Dependencies are inferred from the claim text.