US3722948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-transport system
Assignee: Individual
•
Filing: 1970-11-18
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Granted: 1973-03-27
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Expires: 1990-11-18
Abstract
Abstract A multi-use transport system including a trailer having a main chassis frame and a plurality of interchangeable type trailer bodies each of which is mounted on a substantially identical subframe, the sub-frame and main chassis frame being so interrelated and designed for coacting cooperative interengagement of each said body type sub-frame with the main chassis frame. Each trailer type body is mountable selectively on an identical trailer main chassis, permitting variable multiple function use of a single trailer.
Inventors
- 👤 D Walsh
- 👤 J Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:09
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/42
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
242 words
A multi-use transport system comprising: A. a trailer having a main chassis frame; B. a plurality of interchangeable type trailer bodies, each having a substantially identical sub-frame mounted thereto; C. said main chassis frame including a recessed upwardly open sub-frame receiving and supporting bed, open at one longitudinal end for receiving a sub-frame therethrough for relative displacement to and from nesting relation of the respective sub-frames; D. said sub-frame constituting a closed frame assembly secured to a said body as an integral entity therewith, imparting strength and rigidity to the composite body and sub-frame for independent use thereof separate from said trailer chassis frame and assembled strength when mounted thereon; E. said sub-frames and said main chassis frame being interrelated and designed for coacting operative interengagement selectively of each said body type sub-frame and body thereon on said main chassis frame, with: i. said main chassis supporting bed and said closed frame of said sub-frame being of substantially equal mating dimensions and having substantially identical matable truncated A-shaped head portions such that in nested relationship said sub-frame is supported substantially coextensively by and on said main chassis frame, and ii. said matable truncated A-shaped head portions of said main chassis frame and said sub-frame having mating interacting positioning, retaining, and securing lugs and openings engageable in load transfer relationship upon relative movement of the fraMes into nested positionment, and wherein lateral forces are transferred additionally by interaction of the A-shaped head portions.
Claim 2
Dependent Claim
242 words
A multi-use transport system comprising: A. a trailer having a main chassis frame; B. a plurality of interchangeable type trailer bodies, each having a substantially identical sub-frame mounted thereto; C. said main chassis frame including a recessed upwardly open sub-frame receiving and supporting bed, open at one longitudinal end for receiving a sub-frame therethrough for relative displacement to and from nesting relation of the respective sub-frames; D. said sub-frame constituting a closed frame assembly secured to a said body as an integral entity therewith, imparting strength and rigidity to the composite body and sub-frame for independent use thereof separate from said trailer chassis frame and assembled strength when mounted thereon; E. said sub-frames and said main chassis frame being interrelated and designed for coacting operative interengagement selectively of each said body type sub-frame and body thereon on said main chassis frame, with: i. said main chassis supporting bed and said closed frame of said sub-frame being of substantially equal mating dimensions and having substantially identical matable truncated A-shaped head portions such that in nested relationship said sub-frame is supported substantially coextensively by and on said main chassis frame, and ii. said matable truncated A-shaped head portions of said main chassis frame and said sub-frame having mating interacting positioning, retaining, and securing lugs and openings engageable in load transfer relationship upon relative movement of the fraMes into nested positionment, and wherein lateral forces are transferred additionally by interaction of the A-shaped head portions.
Claim 3
Dependent Claim
71 words
A multi-use transport system as claimed in claim 1, a pivotally mounted main chassis frame open end closure member, said closure member and the mating end of said sub-frame having mating interacting positioning, retaining and securing lugs and openings engageable in load transfer relationship upon pivoting of said closure member to end closing position, and in end open position permitting relative displacement of the frames into and out of nesting positionment.
Claim 4
Dependent Claim
22 words
A multi-use transport system as claimed in claim 2, said end closure member constituting in part a rear bumper for said trailer.
Claim 5
Dependent Claim
29 words
A multi-use transport system as claimed in claim 1, wherein said main chassis frame and said sub-frame are engageably slidable for the relative displacement to and from nesting relation.
Claim 6
Dependent Claim
39 words
A multi-use transport system as claimed in claim 1, including a plurality of extensible and retractable rollers mounted on said main chassis frame operable for rolling conveyance of a sub-frame for the relative displacement to and from nesting relation.
Claim 7
Dependent Claim
29 words
A multi-use transport system as claimed in claim 1, said main chassis frame having extensible and retractable longitudinal side members whereby different length sub-frames can be nestingly mated thereon.
Claim 8
Dependent Claim
46 words
A multi-use transport system as claimed in claim 1, said main chassis frame having longitudinal side members including opposed inwardly opening box type channels and said subframe including box type beams engageable in said channels for relative longitudinal displacement therebetween and secured confinement in nested relation.
Claim 9
Dependent Claim
234 words
A multi-use transport system comprising: A. a trailer having a main chassis frame; B. a plurality of interchangeable type trailer bodies, each having a substantially identical sub-frame mounted thereto; C. said main chassis frame including a recessed upwardly open sub-frame receiving and supporting bed, open at one longitudinal end for receiving a sub-frame therethrough for relative displacement to and from nesting relation of the respective sub-frames; D. said sub-frame constituting a closed frame assembly secured to a said body as an integral entity therewith, imparting strength and rigidity to the composite body and sub-frame for independent use thereof separate from said trailer chassis frame and assembled strength when mounted thereon, E. said sub-frames and said main chassis frame being interrelated and designed for coacting operative interengagement selectively of each said body type sub-frame and body thereon on said main chassis frame, with: i. said main chassis supporting bed and said closed frame of said sub-frame being of substantially equal mating dimensions and having substantially identical matable truncated A-shaped head portions such that in nested relationship said sub-frame is supported substantially coextensively by and on said main chassis frame; ii. said main chassis frame having extensible and retractable longitudinal side members whereby different length sub-frames can be nestingly mated thereon; and iii. said sub-frame closed frame assembly having extensible and retractable longitudinal side members whereby different lengths and types of trailer bodies are mountable thereto.
Claim 10
Dependent Claim
234 words
A multi-use transport system comprising: A. a trailer having a main chassis frame; B. a plurality of interchangeable type trailer bodies, each having a substantially identical sub-frame mounted thereto; C. said main chassis frame including a recessed upwardly open sub-frame receiving and supporting bed, open at one longitudinal end for receiving a sub-frame therethrough for relative displacement to and from nesting relation of the respective sub-frames; D. said sub-frame constituting a closed frame assembly secured to a said body as an integral entity therewith, imparting strength and rigidity to the composite body and sub-frame for independent use thereof separate from said trailer chassis frame and assembled strength when mounted thereon, E. said sub-frames and said main chassis frame being interrelated and designed for coacting operative interengagement selectively of each said body type sub-frame and body thereon on said main chassis frame, with: i. said main chassis supporting bed and said closed frame of said sub-frame being of substantially equal mating dimensions and having substantially identical matable truncated A-shaped head portions such that in nested relationship said sub-frame is supported substantially coextensively by and on said main chassis frame; ii. said main chassis frame having extensible and retractable longitudinal side members whereby different length sub-frames can be nestingly mated thereon; and iii. said sub-frame closed frame assembly having extensible and retractable longitudinal side members whereby different lengths and types of trailer bodies are mountable thereto.
Claim 11
Dependent Claim
31 words
A multi-use transport system as claimed in claim 8, wherein said longitudinal side members of said main chassis frame and said sub-frame are extensible fore and aft for load support balance.
Claim 12
Dependent Claim
66 words
A multi-use transport system as claimed in claim 8, said longitudinal side members of said main chassis frame including outer open bottom box beams longitudinally movably mounted in said open bottom box beams and having rack means thereon, and pinions extending partially through said open bottom engageable with said rack means and operable for extending and retracting said inner box beams in said outer bOx beams.
References Cited (Backward Citations)
FR410005A
Cited
US1521156A
Cited
US2461577A
Cited
US2498906A
Cited
FR1080210A
Cited
US2970550A
Cited
US3473679A
Cited
US3508762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |