US4561671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible chassis for hauling containers
Assignee: EXTENSIBLE DEVELOPMENT GROUP (EDG)
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Filing: 1983-05-03
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Granted: 1985-12-31
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Expires: 2003-05-03
Abstract
Abstract A universal shipping container chassis is disclosed wherein shipping containers of various lengths can be readily accommodated and securely held thereto for transit. A rear wheel assembly includes a load-bearing portion adapted to securely receive and support one end portion of a shipping container; a fifth wheel assembly also includes a load-bearing portion which is adapted to securely receive and support a second end portion of said shipping container. The fifth wheel assembly is coupled to a truck tractor such that the chassis may be readily towed. The wheel assemblies are coupled one to the other by an elongate extensible stinger that is readily adjusted in extent to bring the wheel assemblies closer together for shorter containers and to space the wheel assemblies further apart for longer containers. The stinger includes a locking mechanism for securing it to the wheel assemblies at locations thereby providing a selected extension of the stinger that corresponds to the shipping container's length.
Inventors
- 👤 Nick DeWitt
- 👤 Lindsey C. Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:37
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/64; B60P1/6418; B60P1/6481
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
193 words
A universal shipping container chassis, comprising: a rear wheel assembly including a load-bearing portion adapted to securely receive and support a first end portion of a shipping container; a fifth wheel assembly including a load-bearing portion adapted to securely receive and support a second end portion of said shipping container; an elongate extensible stinger assembly for adjustably coupling said rear wheel assembly to said fifth wheel assembly, said stinger assembly including a stinger coupled to one of said rear wheel assembly and said fifth wheel assembly, and a tube for receiving said stinger coupled to the other of said rear wheel assembly and said fifth wheel assembly, whereby shipping containers of different lengths can be accommodated by said chassis; said stinger defining a plurality of first apertures, said first apertures being vertically and horizontally spaced from each other; said tube defining a plurality of second apertures, said second apertures being spaced vertically to correspond to the vertical spacings of said first apertures; and a pin for engaging one of said first apertures and one of said second apertures, thereby providing a selected extension of said stinger assembly corresponding to said shipping container's length.
Claim 2
Dependent Claim
193 words
A universal shipping container chassis, comprising: a rear wheel assembly including a load-bearing portion adapted to securely receive and support a first end portion of a shipping container; a fifth wheel assembly including a load-bearing portion adapted to securely receive and support a second end portion of said shipping container; an elongate extensible stinger assembly for adjustably coupling said rear wheel assembly to said fifth wheel assembly, said stinger assembly including a stinger coupled to one of said rear wheel assembly and said fifth wheel assembly, and a tube for receiving said stinger coupled to the other of said rear wheel assembly and said fifth wheel assembly, whereby shipping containers of different lengths can be accommodated by said chassis; said stinger defining a plurality of first apertures, said first apertures being vertically and horizontally spaced from each other; said tube defining a plurality of second apertures, said second apertures being spaced vertically to correspond to the vertical spacings of said first apertures; and a pin for engaging one of said first apertures and one of said second apertures, thereby providing a selected extension of said stinger assembly corresponding to said shipping container's length.
Claim 3
Dependent Claim
39 words
The apparatus of claim 1, further comprising an arm coupled to said pin, an end of said arm being pivotably attached to said tube, whereby said arm pivots to provide selected engagement of said pin with said second apertures.
Claim 4
Dependent Claim
81 words
The apparatus of claim 1 wherein said stinger is coupled to said one of said rear wheel assembly and said fifth wheel assembly through a second tube, said second tube defining a plurality of third vertically spaced apertures and said stinger defining a plurality of fourth apertures, said fourth apertures being horizontally spaced and vertically spaced to correspond to said third apertures, and further comprising a second pin for engaging one of said third apertures and one of said fourth apertures.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-30 | 1989-07-01 | 1989-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-30 | 1993-07-01 | 1993-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-30 | 1997-07-01 | 1997-12-31 | $7700.00 | Window Closed / Lapsed |