US3568866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Towable trailer combination
Assignee: Individual
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Filing: 1968-10-24
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Granted: 1971-03-09
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Expires: 1988-10-24
Abstract
Abstract A smaller two-wheeled trailer is mounted behind and suspended from a larger two-wheeled trailer, with the wheels of the smaller slightly above ground level, in easily and controllably disconnectable combination. The smaller trailer has the tongue removed and ordinarily stowed out of the way for subsequent separate use of the trailer. Short rigid support members extend forwardly from the smaller trailer and are attached to the back of the larger trailer so as to be pivotal in at least the vertical plane while attached. Flexible support means extend down and back from upstanding support members on the larger trailer to attaching means on the smaller trailer. Taking in the flexible support means or moving the upper end of the upstanding support means forward raises the smaller trailer off the ground, in which position it becomes legally transportable in combination with the larger trailer which is preferably provided with a longitudinally slidably adjustable axle assembly.
Inventors
- 👤 Glenn Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:39
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1033; B60P3/1041; B62; B62D; B62D63/00; B62D63/06; B62D63/062
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
154 words
In easily and controllably disconnectable combination, a larger two-wheeled trailer and a smaller two-wheeled trailer, the larger trailer having the smaller trailer mounted therebehind and suspended therefrom (1) by a plurality of connecting members spaced apart and rigidly mounted at the front of said smaller trailer at either side of the longitudinal center line thereof, said connecting members extending rigidly forward from said smaller trailer and being adapted to pivotally engage connecting means adjacent the back of the larger trailer, and (2) by flexible support means that extends downwardly and back from respective upstanding support means at each side of the larger trailer to flexible support attaching means mounted on the smaller trailer; said smaller trailer having an axle, the wheels of said smaller trailer being mounted on said axle and rotatable on a fixed axis of rotation relative to said axle; and the wheels of the smaller trailer being held above ground level.
Claim 2
Dependent Claim
154 words
In easily and controllably disconnectable combination, a larger two-wheeled trailer and a smaller two-wheeled trailer, the larger trailer having the smaller trailer mounted therebehind and suspended therefrom (1) by a plurality of connecting members spaced apart and rigidly mounted at the front of said smaller trailer at either side of the longitudinal center line thereof, said connecting members extending rigidly forward from said smaller trailer and being adapted to pivotally engage connecting means adjacent the back of the larger trailer, and (2) by flexible support means that extends downwardly and back from respective upstanding support means at each side of the larger trailer to flexible support attaching means mounted on the smaller trailer; said smaller trailer having an axle, the wheels of said smaller trailer being mounted on said axle and rotatable on a fixed axis of rotation relative to said axle; and the wheels of the smaller trailer being held above ground level.
Claim 3
Dependent Claim
46 words
The combination of trailers as in claim 1 in which the connecting means adjacent the back of the larger trailer are each an attached ball, and the rigidly forwardly extending connecting members are sockets adapted to each align with and lockingly engage one of said balls.
Claim 4
Dependent Claim
92 words
The combination of trailers as in claim 1 in which the flexible support means is a length of cable with each end thereof terminated in a closed loop and the cable attaching means are each a post with an enlarged free end, each post being located adjacent a respective side of the smaller trailer and being attached and extending downwardly from a frame member of the trailer back of the axle thereof, and in each case, the loop being at least large enough to slip over the enlarged end of the post.
Claim 5
Dependent Claim
44 words
The combination of trailers as in claim 1 in which the larger trailer is provided with a frame and the upstanding support means at each side of the trailer is mounted adjacent the rear of the trailer frame and extends outwardly and upwardly therefrom.
Claim 6
Dependent Claim
69 words
The combination of trailers as in claim 4 in which the upstanding support means are each comprised of a shorter, outwardly inclined and upwardly extending base member and a longer and upwardly extending member, the longer member being pivotally supported by the shorter base member and the pivotal motion of the longer member being limited to a relatively short arc in substantially the longitudinal direction of the larger trailer.
Claim 7
Dependent Claim
39 words
The combination of trailers as in claim 1 in which winch and cable means are provided on the larger trailer and are adapted to cooperate with the upstanding support means in lifting and supporting or lowering the smaller trailer.
Claim 8
Dependent Claim
59 words
The combination of trailers as in claim 1 in which winch means are provided on the smaller trailer and the winch means are adapted to take up or let out, controllably, the flexible support means between the upstanding support means and the flexible support attaching means on the smaller trailer, thereby lifting and supporting, or lowering, the smaller trailer.
Claim 9
Dependent Claim
33 words
The combination of trailers as in claim 1 in which the larger trailer is provided with a frame and an axle carrying assembly that is controllably and adjustably slidable longitudinally of said frame.
Claim 10
Dependent Claim
25 words
The combination of trailers as in claim 1 in which the larger trailer is a boat trailer and the smaller trailer is a camper trailer.
Claim 11
Dependent Claim
25 words
The combination of trailers as in claim 1 in which the larger trailer is a house trailer and the smaller trailer is a utility trailer.
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |