US3767103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Egg carton cells for jumbo-sized eggs
Assignee: PACKAGINING Corp OF AMERICA A DE CORP
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Filing: 1972-06-20
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Granted: 1973-10-23
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Expires: 1992-06-20
Abstract
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.
Inventors
- 👤 R Reifers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:32
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/30; B65D85/32; B65D85/324
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
104 words
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.
Claim 2
Dependent Claim
104 words
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.
Claim 3
Dependent Claim
38 words
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.
Claim 4
Dependent Claim
99 words
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.
Claim 5
Dependent Claim
99 words
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.
Claim 6
Dependent Claim
9 words
a circumferential cushioning ring portion which in turn surrounds
Claim 7
Dependent Claim
9 words
a circumferential cushioning ring portion which in turn surrounds
Claim 8
Dependent Claim
16 words
a centrally disposed hollow projection, b. the inner or upper surface of said bottom wall comprising
Claim 9
Dependent Claim
16 words
a centrally disposed hollow projection, b. the inner or upper surface of said bottom wall comprising
Claim 10
Dependent Claim
54 words
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.
Claim 11
Dependent Claim
18 words
The structure as claimed in claim 1 in which said bridging flute portions are disposed at 90* intervals.
Claim 12
Dependent Claim
29 words
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.
Claim 13
Dependent Claim
53 words
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.
Claim 14
Dependent Claim
37 words
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.
Claim 15
Dependent Claim
54 words
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
Claim 16
Dependent Claim
54 words
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
References Cited (Backward Citations)
US3145896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |