US4549672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-wall container
Assignee: Individual
•
Filing: 1985-01-10
•
Granted: 1985-10-29
•
Expires: 2005-01-10
Abstract
Abstract A double-wall container comprises outer side walls integrally formed with semi-tubular ribs extending heightwise of the container and joined at their apices to the inner side walls of the container, and an outer bottom wall also integrally formed with semi-tubular ribs which extend transversely of the container and join at their apices to the inner bottom wall. The inner side walls of the container are formed with inwardly-curved corners extending heightwise of the container, and the outer side walls are formed with outwardly-curved corners extending heightwise of the container and complementing the inwardly-curved corners of the inner side walls to define therewith tubular columns at the corners of the container.
Inventors
- 👤 Isaac Rinkewich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:48
CPC Classifications
B; B65; B65D; B65D11/00; B65D11/16
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
54 words
A double wall container, including inner and outer side walls joined together in spaced relationship, and inner and outer bottom walls joined together in spaced relationship; said outer side walls being integrally formed with semi-tubular ribs extending heightwise of the container and joined at their apices to the inner side walls of the container.
Claim 2
Dependent Claim
54 words
A double wall container, including inner and outer side walls joined together in spaced relationship, and inner and outer bottom walls joined together in spaced relationship; said outer side walls being integrally formed with semi-tubular ribs extending heightwise of the container and joined at their apices to the inner side walls of the container.
Claim 3
Dependent Claim
38 words
The container according to claim 1, wherein said outer bottom wall is also integrally formed with semi-tubular ribs which extend transversly of the container and are joined at their apices to the inner bottom wall of the container.
Claim 4
Dependent Claim
27 words
The container according to claim 2, wherein said outer side walls are formed with corrugations of sinusoidal cross-section such that said semi-tubular ribs are of semi-cylindrical configuration.
Claim 5
Dependent Claim
19 words
The container according to claim 3, wherein said semi-tubular ribs in the bottom wall are also of semi-cylindrical configuration.
Claim 6
Dependent Claim
33 words
The container according to claim 4, wherein said outer bottom wall is integrally formed with flat sections joining said semi-cylindrical ribs to permit the container to stably rest on a flat supporting surface.
Claim 7
Dependent Claim
63 words
The container according to claim 1, wherein said container is of polygonal cross-section, said inner side walls are formed with inwardly-curved corners extending heightwise of the container, and said outer side walls are formed with outwardly-curved corners extending heightwise of the container and complementing said inwardly-curved corners of the inner side walls to define therewith tubular columns at the corners of the container.
Claim 8
Dependent Claim
14 words
The container according to claim 6, wherein said tubular columns are of cylindrical configuration.
Claim 9
Dependent Claim
22 words
The container according to claim 7, further including cylindrical strengthening members received within said cylindrical columns at the corners of the container.
Claim 10
Dependent Claim
20 words
The container according to claim 1, wherein the inner side wall and inner bottom wall have flat, smooth inner faces.
Claim 11
Dependent Claim
57 words
The container according to claim 1, wherein the upper end of the outer side walls are formed with a peripheral rib, and the bottom wall is formed with a peripheral recess for receiving the peripheral rib of another like container to permit a plurality of said containers to be stably stacked one on top of the other.
Claim 12
Dependent Claim
38 words
The container according to claim 1, wherein the outer bottom wall is formed with two spaced recesses extending transversly across the container on opposite sides of its center axis for receiving the fork arms of a forklift truck.
Claim 13
Dependent Claim
17 words
The container according to claim 1, wherein all said walls of the container are of plastic material.
Claim 14
Dependent Claim
13 words
The container according to claim, 1, wherein said container is of square cross-section.
Claim 15
Dependent Claim
84 words
A double-wall container, including inner and outer walls joined together in spaced relationship, characterized in that said inner walls are formed with inwardly-curved formations extending heightwise of the container and spaced around the periphery of the container, and that said outer side walls are formed with outwardly-curved formations extending heightwise of the container and complementing the inwardly curved formations of the inner walls to define therewith tubular columns spaced around the periphery of the container and extending for the complete height of the container.
Claim 16
Dependent Claim
84 words
A double-wall container, including inner and outer walls joined together in spaced relationship, characterized in that said inner walls are formed with inwardly-curved formations extending heightwise of the container and spaced around the periphery of the container, and that said outer side walls are formed with outwardly-curved formations extending heightwise of the container and complementing the inwardly curved formations of the inner walls to define therewith tubular columns spaced around the periphery of the container and extending for the complete height of the container.
Claim 17
Dependent Claim
40 words
A container according to claim 14, wherein the container is of polygonal cross-section, said inwardly-curved formations being formed at the corners of the inner side walls, and said outwardly-curved formations being formed at the corners of the outer side walls.
Claim 18
Dependent Claim
23 words
The container according to claim 14, further including strengthening members received within said tubular columns formed by said inner and outer side walls.
Claim 19
Dependent Claim
35 words
The container according to claim 14, wherein said outer side walls are integrally formed with semi-tubular ribs extending heightwise of the container and joined at their apices to the inner side walls of the container.
Claim 20
Dependent Claim
27 words
The container according to claim 17, wherein said outer side walls are formed with corrugations of sinusoidal cross-section such that the tubular ribs are of semi-cylindrical configuration.
Claim 21
Dependent Claim
47 words
The container according to claim 18, wherein said semi-tubular ribs in the bottom wall are also of semi-cylindrical configuration, and wherein said outer bottom wall is integrally formed with flat section joining said semi-cylindrical ribs to permit the container to stably rest on a flat supporting surface.
Claim 22
Dependent Claim
38 words
The container according to claim 14, wherein said outer bottom wall is also integrally formed with semi-tubular ribs which extend transversely of the container and are joined at their apices to the inner bottom wall of the container.
References Cited (Backward Citations)
US3005572A
Cited
US3307729A
Cited
US3303965A
Cited
US3437423A
Cited
US3442418A
Cited
US3407961A
Cited
US3441071A
Cited
US3997074A
Cited
US3987829A
Cited
US4359168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |