US4469346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual load trailer
Assignee: Individual
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Filing: 1983-02-25
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Granted: 1984-09-04
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Expires: 2003-02-25
Abstract
Abstract Brackets are used to couple a first trailer to a second trailer in such a manner that the second trailer can be loaded with a load such as a boat and be raised to a position above the first trailer to allow the first trailer to then be loaded with a load such as an automobile. Both trailers can then be towed behind a tow vehicle such as a motor home or the like.
Inventors
- 👤 Virgil T. Low
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:16
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/08; B60P3/10; B60P3/1033
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
284 words
A trailer comprising: (a) a first support means for supporting a first load, said first support means including a frame member for receiving said first load and ground engaging wheel means for rollably supporting said frame members, said frame members having a front end and a rear end; (b) a second support means for supporting a second load, said support means including a frame member for receiving said second load, said frame member having a front end and a rear end; (c) a first bracket means having a first end for being pivotally attached to said frame member of said first support means substantially adjacent said front end thereof and having a second end for being pivotally attached to said frame member of said second support means substantially adjacent said front end thereof; (d) a second bracket means having a first end for being pivotally attached to said frame member of said first support means substantially adjacent said rear end thereof and having a second end for being pivotally attached to said frame member of said second support means substantially adjacent said rear end thereof, said second bracket means being pivotally attached to said frame member of said first support means at a lower point than said first bracket means: and (e) winch means for causing said second support means to pivot between a down position in which said rear end of said frame member thereof is adjacent said ground surface to allow easy loading and unloading of said second load thereon and an up position in which said frame member thereof is positioned above said frame member of said first support means to allow easy loading and unloading of said first support means.
Claim 2
Dependent Claim
284 words
A trailer comprising: (a) a first support means for supporting a first load, said first support means including a frame member for receiving said first load and ground engaging wheel means for rollably supporting said frame members, said frame members having a front end and a rear end; (b) a second support means for supporting a second load, said support means including a frame member for receiving said second load, said frame member having a front end and a rear end; (c) a first bracket means having a first end for being pivotally attached to said frame member of said first support means substantially adjacent said front end thereof and having a second end for being pivotally attached to said frame member of said second support means substantially adjacent said front end thereof; (d) a second bracket means having a first end for being pivotally attached to said frame member of said first support means substantially adjacent said rear end thereof and having a second end for being pivotally attached to said frame member of said second support means substantially adjacent said rear end thereof, said second bracket means being pivotally attached to said frame member of said first support means at a lower point than said first bracket means: and (e) winch means for causing said second support means to pivot between a down position in which said rear end of said frame member thereof is adjacent said ground surface to allow easy loading and unloading of said second load thereon and an up position in which said frame member thereof is positioned above said frame member of said first support means to allow easy loading and unloading of said first support means.
Claim 3
Dependent Claim
47 words
The trailer of claim 1 in which said second end of said second bracket means is pivotally attached to said second support means at a point rearward of the point where said first end of said second bracket means is pivotally attached to said first support means.
Claim 4
Dependent Claim
71 words
The trailer of claim 2 in which is included a pivot means for pivotally attaching said second end of said first bracket means to said frame means of said second support means, said pivot means being slidable with respect to said second support means to allow said frame member of said second support means to move between a forward position and a rearward position with respect to said first bracket means.
Claim 5
Dependent Claim
35 words
The trailer of claim 3 in which is included means for normally holding said frame member of said second support means in said rearward position when said second support means is in said up position.
Claim 6
Dependent Claim
22 words
The trailer of claim 4 in which is included lock means for positively locking said second support means in said up position.
Claim 7
Dependent Claim
108 words
The trailer of claim 5 in which said first support means is provided with an upwardly extending member fixedly attached to said frame member thereof substantially adjacent said front end thereof; and in which said lock means includes tab members attached to said upwardly extending member so as to be coextensive with a portion of said first bracket means when said second support means is in said up position, and includes a pin member for extending through both said tab members and past said first bracket means when said second support means is in said up position to positively lock said second support means in said up position.
Claim 8
Dependent Claim
53 words
The trailer of claim 6 in which said winch means includes an electric motor fixedly anchored to said first support means substantially adjacent said front end of said frame member thereof, and includes a cable member for extending from said electric motor to said second bracket member substantially adjacent said second end thereof.
Claim 9
Dependent Claim
75 words
The trailer of claim 7 in which is included a source of electrical energy and an electric circuit for coupling said source of electrical energy to said electric motor; said electric circuit including a main switch for controlling the operation of said electric motor, a limit switch for preventing said winch means from raising said second support means past a pre-set point, and a by-pass switch for allowing said limit switch to be selectively by-passed.
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) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |