Patent US3661317A successfully refreshed from Google Patents.
US3661317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic container for eggs
Assignee: Individual
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Filing: 1970-07-20
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Granted: 1972-05-09
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Expires: 1990-07-20
Abstract
Abstract A plastic container for eggs comprising a main body with cavities and a cover body with cavities which receive eggs in cooperation with the corresponding cavities provided to the main body, said cover body being foldable to the main body and secured to said main body, during the conveyance or handling of the container from a raiser to retailer, mainly by means of a plurality of projections one ends of which are made integral with one of said main body or cover body and the other ends of which are weldable to the other of the main body or cover body and auxiliary by means of convex and concave projections formed on the cover and main body which are snapped to each other when the cover body is folded to the main body, the projections one ends of which are welded to either one of the cover or main body being releasable by his fingers when a consumer wishes to open the container, and said convex and concave projections acting to secure the cover body to the main body when the container is opened by the consumer for taking out therefrom a desired number of eggs by releasing the welded projections and preserves the remaining eggs within the container.
Inventors
- 👤 Hikoji Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:28
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/30; B65D85/32; B65D85/324
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
283 words
In a plastic container for eggs comprising a main body formed with a number of cavities for receiving therein the lower halves of eggs to be contained in the container and a cover body made integral with the main body, said cover body provided with a number of cavities for receiving therein the upper halves of eggs in cooperation with the corresponding cavities of the main body and foldable to said main body with a vertical clearance therebetween at a connecting part made integral with the main and cover body, said vertical clearance providing a free communication of air to each cavity, the improvement comprising: rims extending circumferentially outwardly from the main and cover body; a plurality of projections integral with one of said rims, extending therefrom substantially at a right angle so that their free ends can abut against the surface of the other of said rims when the cover body is folded to the main body, said projections having bottom surfaces at their free ends which are releasably welded to the other of said rims with such strength that the cover body is secured to the main body and still can be released by pressure of the fingers; and a plurality of concave projections integral with one of the rims and extending therefrom and a plurality of corresponding convex projections integral with the other of the rims and releasably engageable with the corresponding concave projection when the cover body is folded to the main body, the height of said first-mentioned projections and the sum of heights of said concave and convex projections when they are engaged with each other substantially corresponding to said vertical clearance between the main and cover body.
Claim 2
Dependent Claim
283 words
In a plastic container for eggs comprising a main body formed with a number of cavities for receiving therein the lower halves of eggs to be contained in the container and a cover body made integral with the main body, said cover body provided with a number of cavities for receiving therein the upper halves of eggs in cooperation with the corresponding cavities of the main body and foldable to said main body with a vertical clearance therebetween at a connecting part made integral with the main and cover body, said vertical clearance providing a free communication of air to each cavity, the improvement comprising: rims extending circumferentially outwardly from the main and cover body; a plurality of projections integral with one of said rims, extending therefrom substantially at a right angle so that their free ends can abut against the surface of the other of said rims when the cover body is folded to the main body, said projections having bottom surfaces at their free ends which are releasably welded to the other of said rims with such strength that the cover body is secured to the main body and still can be released by pressure of the fingers; and a plurality of concave projections integral with one of the rims and extending therefrom and a plurality of corresponding convex projections integral with the other of the rims and releasably engageable with the corresponding concave projection when the cover body is folded to the main body, the height of said first-mentioned projections and the sum of heights of said concave and convex projections when they are engaged with each other substantially corresponding to said vertical clearance between the main and cover body.
Claim 3
Dependent Claim
46 words
A plastic container for eggs in accordance with claim 1, wherein the vertical clearance to be formed between the cover and main body for providing a free communication of air to each cavity is made by projections formed on the bodies at places between said cavities.
Claim 4
Dependent Claim
24 words
A plastic container for eggs in accordance with claim 1, in which the first-mentioned projections are provided on the rim of the cover body.
Claim 5
Dependent Claim
268 words
In a plastic container for eggs comprising a main body formed with a number of cavities for receiving therein the lower halves of eggs to be contained in the container and a cover body made integral with the main body, said cover body provided with a number of cavities for receiving therein the upper halves of eggs in cooperation with the corresponding cavities of the main body and foldable to said main body with a vertical clearance therebetween at a connecting part made integral with the main and cover body, said vertical clearance providing a free communication of air to each Cavity, the improvement comprising: first closure means for holding said main body and said cover body in a closed relationship, said first closure means comprising a plurality of projections extending from one of said main body and said cover body substantially at a right angle so that their free ends can abut against the surface of the other of said main body and said cover body when in a closed relationship, said projection being welded to said surface to releasably hold them in a closed relationship; and second closure means for holding said main body and said cover body in a closed relationship, said second closure means comprising a plurality of concave projections integral with one of said main body and said cover body and extending therefrom and a plurality of corresponding convex projections integral with the other of said main body and said cover body and releasably engageable with the corresponding concave projection when said cover body and said main body are in a closed relationship.
Claim 6
Dependent Claim
268 words
In a plastic container for eggs comprising a main body formed with a number of cavities for receiving therein the lower halves of eggs to be contained in the container and a cover body made integral with the main body, said cover body provided with a number of cavities for receiving therein the upper halves of eggs in cooperation with the corresponding cavities of the main body and foldable to said main body with a vertical clearance therebetween at a connecting part made integral with the main and cover body, said vertical clearance providing a free communication of air to each Cavity, the improvement comprising: first closure means for holding said main body and said cover body in a closed relationship, said first closure means comprising a plurality of projections extending from one of said main body and said cover body substantially at a right angle so that their free ends can abut against the surface of the other of said main body and said cover body when in a closed relationship, said projection being welded to said surface to releasably hold them in a closed relationship; and second closure means for holding said main body and said cover body in a closed relationship, said second closure means comprising a plurality of concave projections integral with one of said main body and said cover body and extending therefrom and a plurality of corresponding convex projections integral with the other of said main body and said cover body and releasably engageable with the corresponding concave projection when said cover body and said main body are in a closed relationship.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |