US3767103A - Egg carton cells for jumbo-sized eggs - Google Patents

Egg carton cells for jumbo-sized eggs Download PDF

Info

Publication number
US3767103A
US3767103A US3767103DA US3767103A US 3767103 A US3767103 A US 3767103A US 3767103D A US3767103D A US 3767103DA US 3767103 A US3767103 A US 3767103A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
cells
cell
carton
cellular
bottom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
R Reifers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PACKAGINING Corp OF AMERICA A DE CORP
Packaging Corp of America
Original Assignee
Diamond International Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/32Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for eggs
    • B65D85/324Containers with compartments made of pressed material

Abstract

A cellular, molded egg carton in which the cells are stretched transversely and length-wise for accommodating jumbo-sized eggs, and in which the cells include a unique cushioning bottom permitting elongation or stretching of the cells without peripheral rupture at the cell bottoms.

Description

United States Patent [1 1 Reifers 1 Oct. 23, 1973 EGG CARTON CELLS FOR JUMBO-SIZED [56] References Cited EGGS UNITED STATES PATENTS 1 lnventorI Richard Reifers, Canaan. Conn. 3,l45,896 8/1964 Reifers 229/25 [73] Assignee: Diamond InternationalCorporation,

New York, N.Y. Primary ExaminerDonald F. Norton A K 1W. Fl k 221 Filed: June 20, 1972 Omey at 8 [2]] App]. No.: 264,606 7 ABSTRACT Relaed Application Data A cellular, molded egg carton in which the cells are [63] Continuation of Ser. No. 117,249, Feb. 22, 197i, stretched transversely and length-wise for accommoa a dating jumbo-sized eggs, and in which the cells include a unique cushioning bottom permitting elongation or [52] US. Cl. 229/25 tr t hin of the cells without peripheral rupture at [51] Int. Cl 865d 85/32 h ll b ttoms. [58] Field of Search 229/25 8 Claims, 9 Drawing Figures PAIENIEnncI 23 ms sum 1 or 2 FIG. 4

INVENTOR RICHARD F RE/FERS KARL (D. FLoccs ATTORNEY PATENTEU UB1 2 3 I973 sum 2 or 2 FIG. 9

INVENTOR R/CHA/PD F RE/FERS ATTORNEY EGG CARTON CELLS FOR JUMBO-SIZED EGGS This is a continuation of application Ser. No. 1 17,249, filed Feb. 22, I971, and now abandoned.

This invention generally relates to molded, cellular egg cartons of a character disclosed in the US. Pat. No. 3,145,896 to Reifers et al issued Aug. 25, 1964. The cells disclosed in this issued patent are highly satisfactory for the purpose intended, however, the packaging of jumbo-sized eggs requires a deeper and wider cell than has heretofore been provided. When attempting to widen and deepen cells of the character disclosed in the patent mentioned above, by suitably redimensioning pressing dies, although transverse dimensioning can be enlarged within the limits of the outside dimensions of the carton preform, the elongation or stretching could not be readily accomplished on preforms presently used for producing the carton of the aboveidentified patent. I

In order to radically enlarge transversely anddepthwise cells of the character disclosed in the patent mentioned above, it would generally be necessary to completely retool both the molding and pressing dies, entailing production shut-downs, complete redesigning of the molding dies and/or the pressing dies.

Primary objects of the present invention are to provide a novel egg carton including cells produced from a conventional molded preform whereby the cell areas are radially enlarged laterally and vertically within the conventional width and length dimensions of the finished cartons;

to provide a novel egg carton in which the cell bottoms include unique reinforcing and cushioning portions permitting elongation or stretching depthwise of the cells; 7

to provide cellular egg carton cells which are circumferentially or transversely enlarged or stretched within the width and length dimensions of the conventional carton to accommodate jumbo-sized eggs.

These together with other objects and the nature and advantages of the invention will become apparent from a consideration of the following description when taken in conjunction with the drawings forming a part thereof.

FIG. 1 is a front elevational view of an egg carton incorporating the improved cells of the present invention;

FIG. 2 is an enlarged elevational view looking from left to right at FIG. 1; a

FIG. 3 is a further enlarged vertical section taken substantially on the plane of line 3-3 of FIG. 2;

FIG. 4 is a view similar to FIG. 3 showing a fragmentary portion of a preform from which the carton portions of FIG. 3 are produced;

FIG. 5 is a fragmentary perspective view looking at the underside of one of the cells-of the egg carton of FIGS. 1 and 2;

FIG. 6 is a fragmentary top plane view looking into the cellular bottom of the egg carton;

FIG. 7 is a fragmentary section taken on the plane of line 77 of FIG. 6;

FIG. 8 is a section taken substantially on the plane of line 8-8 of FIG. 6; and a FIG. 9 is a bottom plan view of one of the cells of the egg carton.

It will be understood by those skilled in the art that the cartons are produced on suitable suction molds by the deposition of slurry of pulp material to form a pulp nected by a tunnel structure 16, although it is within the contemplation of this invention that the carton may be in the form of a single section not normally intended to be separable. The tunnel structure 16 has a weakened line 18 extending thereabout accordingly providing two similar, sub-containers each accommodating one-half dozen eggs and commonly being described as 2 X 3 cellular cartons.

The carton section 12, for example, includes a cellular bottom portion 20 and a lid portion 22. The cellular bottom 20 has hingedly connected thereto along one side edge 24 the cover 22, and along the other opposed parallel side edge 26 a lock flap 28; see FIG. 6. The cellular' bottom 20 will be defined in relation to its peripheral marginal flange 30.

Extending vertically from cell bottom walls 32 are support posts 34. The support posts project above flange 30 and include an upper abutment surface 36 engageable with the under surface of the lid 22; see FIG. 3. g

Theposts 34 preferably comprise a pyramidal configuration having a rectangular cross section in which each of the sides of the posts face into a respective cell 38. The sides 40 of the posts continue down to the previously mentioned bottom wall 32 of the cells and edge portions of the post between the respective sides 40, merge into relatively low saddle portions 42 disposed at right angles. The sides 40 of the posts 34 have extending vertically a substantial extent therealong con: cave indent portions 44. These indents 44 enlarge the cells 38 inwardly or laterally accordingly accommodating jumbo-sized eggs.

The cells 38 are generally five-sided as seen in FIG. 6, and the upper portions thereof are provided with circumferentially spaced, concave indents 46, generally on the same radius as the indents 44 of the posts 34, these indents being formed to accommodate the relatively large maximum dimension of jumbo-sized eggs.

Referring to FIGS. 3'and 4, in FIG. 4, the preform is indicated as having a lid portion 22, cellular bottom portion 20. The upper marginal edge 30' of the preform when oriented parallel to the corresponding portion 30 of the finished carton in FIG. 3, accordingly disposes the bottom 32' of cells 38' a considerable distance above the bottom 32 of the finished carton. When the lid 22' of the preform is pressed, it is maintained at substantially the same height as when originally molded. However, the depth of the cells is radically increased and at the same time the transverse dimension is radically increased; this radical reforming is made possible by the subsequently described structure.

Referring to the under surface of the bottom 32 of the cells 38, adjacent the peripheral, polygonal shoulder 48 is an enlarged substantially torous shaped cushioning element or portion 50 concentric to a downwardly extending hollow projection or detent portion a torous shaped circular portion 56 surrounding a dimple or detent 58, overlying lower, central portion 52, and a circumferential groove 60 overlies the lower torous shaped portion 50.

When the cell is stretched from the condition shown in FIG. 4 to that of FIG. 3, material is forced to the outer peripheral edge of the bottom 32 of the cells forming the circular portion 50 but also reinforcing the cells at the area where they would normally rupture in the absence of the particular configuration disclosed. Additionally, the cushioning portion 56 is produced and this overlies on the inner surface, the flutes 54 which connect the relatively thin portion 50 to the thin portion 52.

In effect, what is accomplished is the basic cell is lowered or stretched from its uppermost peripheral edge 30 over its entire length and a ring cushion is added to the increased depth. Embossed within this projecting ring is a cushion profile which is connected by four flutes or bridges as viewed from the outer surface of the bottom 32. It will be noted that these flutes or bridges are not apparent then looking into the cells 38; see FIG. 6. Additionally, the bubble indents or fragmentary portions of an increased circumferential area 46 are provided adjacent the hinge line of the lock flap or cover as well as adjacent the ends of the carton.

By stretching the cells of the carton, standard packing cases which conventionally accommodate 30 dozen standard eggs, will now only accommodate 24 dozen eggs because the packing crates will no longer accommodate five layers of egg cartons, but will only accommodate four layers of egg cartons, six-dozen cartons per layer.

The disclosed carton incorporating an increased transverse area dimension in the cells and a deeper cell for accommodatingjumbo-sized eggs, is produced from preforms which would normally be used to produce the carton disclosed in U. S. Pat. No. 3,145,896. By incorporating the novel bottom wall structure it is possible to produce cartons with cells for readily accommodating jumbo-sized eggs, without retooling molding dies to produce the preform shown in FIG. 4. This is a considerable accomplishment, inasmuch as retooling foraminous forming dies, and closing down all the equipment for installing new dies that produce preforms, is a major expense in molded pulp productions. By merely installing retooled pressing dies, the cartons of US. Pat. No. 3,145,896 may be produced and/or those of the present application may also be produced, each from identical preforms.

It will be obvious to those skilled in the art that various changes may be made without departing from the scope of the invention and the invention is not to be considered limited to what is shown in the drawings and described in the specification.

What is claimed is:

1. In a carton including a cellular bottom section, said cellular bottom section comprising at least one vertical post surrounded by cells depending from an upper marginal flange, the cells comprising side wall portions converging to a transverse bottom wall, the improvement wherein said bottom wall includes on the under surface a circumferential cushioning ring portion surrounding a centrally disposed hollow projection and connected thereto by bridging flute portions, said bottom wall inner surface comprising a groove overlying said cushioning ring portion and a recess overlying said hollow projection, and a circular cushioning rib overly- 5 ing said bridging flute portions and extending upwardly into said cell.

2. The structure as claimed in claim 1 in which said cushioning ring and said circular cushioning rib have a concave surface on the upper surface of said bottom wall and on the outer surface of said cell, respectively.

3. The structure as claimed in claim 1 in which said cells are polygonally sided and said vertical post comprises one of said sides, each of said cell sides including a concave recess on a generally common radius and adjacent the upper flange of said cell whereby jumbosized eggs are readily accommodated in the cells.

4. The structure as claimed in claim 1 in which said bridging flute portions are disposed at 90 intervals.

5. The structure as claimed in claim 1 in which said vertical posts are rectangular in cross section and taper vertically above the upper margin flange of said cellular section.

6. The structure as claimed in claim 1 in which said cellular bottom section is produced from a molded preform having a molded cell depth substantially less than the cell depth of the finished cells by stretching the cells vertically and transversely beyond their initial molded depth and horizontal dimension to accommodate jumbo-sized eggs.

7. The structure as claimed in claim 1 in which said carton is in the form of two separate separable sections connected by a tunnel portion having a weakened line extending thereabout to facilitate separation of said sections.

8. In a carton including a cellular bottom section, said cellular bottom section comprising at least one vertical post surrounded by cells depending from an upper marginal flange, the cells comprising side wall portions converging downwardly to a generally transverse bottom wall, the improvement wherein a. said bottom wall includes on the under surface thereof 1. an outer shoulder portion which surrounds 2. a circumferential cushioning ring portion which in turn surrounds 3. a centrally disposed hollow projection, b. the inner or upper surface of said bottom wall comprising 1. a groove overlying said cushioning ring portion, 2. and a recess overlying said hollow projection, c. said bottom section being molded from a preform wherein the cell depth is substantially less than the cell depth of the finished cells and the cell width is less than the width of the finished cells of said carton, and

d. at least portions of said cushioning ring and said hollow projection being stretched below the original bottom cell wall of the preform and the cell width being stretched to a wider dimension from the original width of said preform,

whereby said carton cells may accommodate exceptionally large or jumbo-sized eggs.

Claims (11)

1. In a carton including a cellular bottom section, said cellular bottom section comprising at least one vertical post surrounded by cells depending from an upper marginal flange, the cells comprising side wall portions converging to a transverse bottom wall, the improvement wherein said bottom wall includes on the under surface a circumferential cushioning ring portion surrounding a centrally disposed hollow projection and connected thereto by bridging flute portions, said bottom wall inner surface comprising a groove overlying said cushioning ring portion and a recess overlying said hollow projection, and a circular cushioning rib overlying said bridging flute portions and extending upwardly into said cell.
2. The structure as claimed in claim 1 in which said cushioning ring and said circular cushioning rib have a concave surface on the upper surface of said bottom wall and on the outer surface of said cell, respectively.
2. and a recess overlying said hollow projection, c. said bottom section being molded from a preform wherein the cell depth is substantially less than the cell depth of the finished cells and the cell width is less than the width of the finished cells of said carton, and d. at least portions of said cushioning ring and said hollow projection being stretched below the original bottom cell wall of the preform and the cell width being stretched to a wider dimension from the original width of said preform, whereby said carton cells may accommodate exceptionally large or jumbo-sized eggs.
2. a circumferential cushioning ring portion which in turn surrounds
3. a centrally disposed hollow projection, b. the inner or upper surface of said bottom wall comprising
3. The structure as claimed in claim 1 in which said cells are polygonally sided and said vertical post comprises one of said sides, each of said cell sides including a concave recess on a generally common radius and adjacent the upper flange of said cell whereby jumbo-sized eggs are readily accommodated in the cells.
4. The structure as claimed in claim 1 in which said bridging flute portions are disposed at 90* intervals.
5. The structure as claimed in claim 1 in which said vertical posts are rectangular in cross section and taper vertically above the upper margin flange of said cellular section.
6. The structure as claimed in claim 1 in which said cellular bottom section is produced from a molded preform having a molded cell depth substantially less than the cell depth of the finished cells by stretching the cells vertically and transversely beYond their initial molded depth and horizontal dimension to accommodate jumbo-sized eggs.
7. The structure as claimed in claim 1 in which said carton is in the form of two separate separable sections connected by a tunnel portion having a weakened line extending thereabout to facilitate separation of said sections.
8. In a carton including a cellular bottom section, said cellular bottom section comprising at least one vertical post surrounded by cells depending from an upper marginal flange, the cells comprising side wall portions converging downwardly to a generally transverse bottom wall, the improvement wherein a. said bottom wall includes on the under surface thereof
US3767103A 1971-02-22 1972-06-20 Egg carton cells for jumbo-sized eggs Expired - Lifetime US3767103A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11724971 true 1971-02-22 1971-02-22
US26460672 true 1972-06-20 1972-06-20

Publications (1)

Publication Number Publication Date
US3767103A true US3767103A (en) 1973-10-23

Family

ID=26815090

Family Applications (1)

Application Number Title Priority Date Filing Date
US3767103A Expired - Lifetime US3767103A (en) 1971-02-22 1972-06-20 Egg carton cells for jumbo-sized eggs

Country Status (1)

Country Link
US (1) US3767103A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295597A (en) * 1975-01-27 1981-10-20 Aktieselskabet Brodrene Hartmann Tray blank for eggs
US4394214A (en) * 1981-09-29 1983-07-19 Diamond International Corporation Construction of universal egg cell cushion and method
US4448344A (en) * 1982-09-01 1984-05-15 Diamond International Corporation Egg cell construction
US4465225A (en) * 1981-09-29 1984-08-14 Diamond International Corporation Construction of universal egg cell cushion
US5494164A (en) * 1994-09-19 1996-02-27 Dolco Packaging Corp. Egg carton
US6012583A (en) * 1998-09-15 2000-01-11 Tekni-Plex, Inc. Egg carton
WO2009148310A1 (en) * 2008-06-03 2009-12-10 Huhtamaki Nederland B.V. Packaging unit
US20110175974A1 (en) * 2010-01-20 2011-07-21 Mitchell Barry Chait Systems and methods for processing eggs
US20110177207A1 (en) * 2010-01-20 2011-07-21 Newmarket Impressions, Llc Systems and methods for processing eggs
US20110176901A1 (en) * 2010-01-20 2011-07-21 Mitchell Barry Chait Systems and methods for processing eggs
US20110177217A1 (en) * 2010-01-20 2011-07-21 Mitchell Barry Chait Systems and methods for processing eggs
US20110174223A1 (en) * 2010-01-20 2011-07-21 Mitchell Barry Chait Systems and methods for processing eggs
US8715757B2 (en) 2010-01-20 2014-05-06 Ten Media, Llc Systems and methods for processing eggs
US8871287B2 (en) 2010-01-20 2014-10-28 Ten Media, Llc Container for eggs, method and apparatus for arranging and stabilizing eggs in a container
US9315317B2 (en) 2012-02-21 2016-04-19 Ten Media, Llc Container for eggs

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145896A (en) * 1962-09-19 1964-08-25 Diamond National Corp Divisible molded article

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145896A (en) * 1962-09-19 1964-08-25 Diamond National Corp Divisible molded article

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295597A (en) * 1975-01-27 1981-10-20 Aktieselskabet Brodrene Hartmann Tray blank for eggs
US4394214A (en) * 1981-09-29 1983-07-19 Diamond International Corporation Construction of universal egg cell cushion and method
US4465225A (en) * 1981-09-29 1984-08-14 Diamond International Corporation Construction of universal egg cell cushion
US4448344A (en) * 1982-09-01 1984-05-15 Diamond International Corporation Egg cell construction
US5494164A (en) * 1994-09-19 1996-02-27 Dolco Packaging Corp. Egg carton
US6012583A (en) * 1998-09-15 2000-01-11 Tekni-Plex, Inc. Egg carton
WO2009148310A1 (en) * 2008-06-03 2009-12-10 Huhtamaki Nederland B.V. Packaging unit
US20110132791A1 (en) * 2008-06-03 2011-06-09 Huhtamaki Nederland B.V. Packaging unit
US20110176901A1 (en) * 2010-01-20 2011-07-21 Mitchell Barry Chait Systems and methods for processing eggs
US20110177207A1 (en) * 2010-01-20 2011-07-21 Newmarket Impressions, Llc Systems and methods for processing eggs
US20110175974A1 (en) * 2010-01-20 2011-07-21 Mitchell Barry Chait Systems and methods for processing eggs
US20110177217A1 (en) * 2010-01-20 2011-07-21 Mitchell Barry Chait Systems and methods for processing eggs
US20110174223A1 (en) * 2010-01-20 2011-07-21 Mitchell Barry Chait Systems and methods for processing eggs
US8455026B2 (en) 2010-01-20 2013-06-04 Ten Media, Llc Systems and methods for processing eggs
US8455030B2 (en) 2010-01-20 2013-06-04 Ten Media, Llc Systems and methods for processing eggs
US8499718B2 (en) 2010-01-20 2013-08-06 Ten Media, Llc Systems and methods for processing eggs
US8657098B2 (en) 2010-01-20 2014-02-25 Ten Media, Llc Systems and methods for processing eggs
US8715757B2 (en) 2010-01-20 2014-05-06 Ten Media, Llc Systems and methods for processing eggs
US8823758B2 (en) 2010-01-20 2014-09-02 Ten Media, Llc Systems and methods for processing eggs
US8871287B2 (en) 2010-01-20 2014-10-28 Ten Media, Llc Container for eggs, method and apparatus for arranging and stabilizing eggs in a container
US9315317B2 (en) 2012-02-21 2016-04-19 Ten Media, Llc Container for eggs

Similar Documents

Publication Publication Date Title
US3549044A (en) Anti-spilling device for drinking containers
US3511902A (en) Method of molding composite containers
US3220603A (en) Containers for egg cartons, or the like
US3212907A (en) Food package and tray
US5398908A (en) Container for receipt of an edible good
US2600130A (en) Egg carton
US4095720A (en) Plastic carrier for fluid containers
US3917108A (en) Plastic tray and method of making same
US3885727A (en) Packaging tray with juice trapping viewing windows
US3813027A (en) Carton construction
US3268144A (en) Thermoplastic container with side wall and rim strengthening characteristics
US3683549A (en) Flowerpot
US5503283A (en) Blow-molded container base structure
US7178687B1 (en) Moldable plastic container with hourglass profile
US4322009A (en) Tamper proof molded plastic closure
US3358879A (en) Nesting container
US2863595A (en) Molded pulp packaging members
US3712532A (en) Egg carton
US5833115A (en) Container
US4267144A (en) Process of reducing blowing cycle for blow molded containers
US5503858A (en) Molded plastic overwrap tray
US3701449A (en) Short bottle crates made of plastic
US20050139572A1 (en) Plastic container
US4154423A (en) Apparatus for the construction of a domed structure such as an igloo
US3033434A (en) Pressed article with smooth take-up curved zones

Legal Events

Date Code Title Description
AS Assignment

Owner name: PACKAGINING CORPORATION OF AMERICA, EVANSTON, ILL.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE SEPT 26,1983;ASSIGNOR:DIAMOND INTERNATIONAL CORPORATION,;REEL/FRAME:004311/0207

Effective date: 19840731

AS Assignment

Owner name: PACKAGING CORPORATION OF AMERICA EVANSTON, IL A CO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DIAMOND INTERNATIONAL CORPORATION;REEL/FRAME:004359/0673

Effective date: 19850803