# US 4,394,214 A · Construction of universal egg cell cushion and method

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- Number: US 4,394,214 A
- Document ID: US4394214A
- Status: Granted
- Kind: A
- Application number: 06/306,980
- Filed: 1981-09-29
- Granted: 1983-07-19
- Earliest claimed: 1981-09-29
- Assignees: Diamond International Corporation
- Inventors: Kenneth D. Bixler; Henry A. Lord; Richard F. Reifers
- Web page: https://patentgrep.com/patent/US4394214A

## CPC

- B65D 85/32: for eggs
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

## 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.

## Claims

### Claim 1

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.

### Claim 2

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.

### Claim 3 (depends on 1, 2)

The method in accordance with claim 1 or claim 2, wherein the bubble segment is first fastened to the mold by at least one generally horizontal extension from the rear side thereof which passes through the mold, which extension is then formed with an enlarged head and then the pulp fibres are sucked over the bubble segment.

### Claim 4 (depends on 1, 2)

The method in accordance with claim 1 or claim 2, wherein the bubble segment is fastened to the mold screen with adhesive.

### Claim 5 (depends on 1, 2)

The method according to claim 1 or 2 wherein the bubble-shaped segment has at least two grooves therein.