US4406477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination boat and automobile trailer
Assignee: Individual
•
Filing: 1981-11-19
•
Granted: 1983-09-27
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Expires: 2001-11-19
Abstract
Abstract A double load trailer adapted for receiving an automobile on a first horizontal frame mounted on a wheeled axle. A second horizontal frame is slidably mounted on a plurality of vertical posts attached to the first frame. The second frame is adapted for receiving a boat thereon. When the automobile has been unloaded from the trailer, the second frame is lowered in a horizontal plane on top of the first frame so the boat can be unloaded from the trailer into the water.
Inventors
- 👤 Lowell R. McDonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:29
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/08; B60P3/10; B60P3/1033
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
394 words
A double load trailer for hauling both an automobile, a boat or the like behind a towing vehicle, the trailer comprising: a first horizontal frame mounted on a wheeled axle and adapted for releasable attachment to the towing vehicle; a first vertical post mounted on the front of the first frame; second and third vertical posts mounted on the opposite sides of the rear of the first frame; a second horizontal frame disposed above the first frame, the second frame having a first sleeve attached to the front of the second frame and a second and third sleeve attached to the opposite sides of the rear of the second frame, the sleeves slidably received around the posts; a power winch mounted on the front of the first frame and having a main cable received around a main pulley and attached to the first post, the main pulley suspended between the front and rear of the first frame; a first post cable having one end attached to the first sleeve and received around a first post pulley mounted on top of the first post, the first post cable received around a first frame pulley attached to the front of the first frame, the first post cable also received around a first idle pulley attached to the rear of the first frame with the other end of the first post cable attached to the main pulley; a second post cable having one end attached to the second sleeve and received around a second post pulley mounted on top of the second post, the second post cable received around a second frame pulley attached to one side of the rear of the first frame, the second post cable received around a second idle pulley attached to the rear of the first frame with the other end of the second post cable attached to the main pulley; and a third post cable having one end attached to the third sleeve and received around a third post pulley mounted on top of the third post, the third post cable received around a third frame pulley attached to the other side of the rear of the first frame, the third post cable received around a third idle pulley attached to the rear of the first frame with the other end of the third post cable attached to the main pulley.
Claim 2
Dependent Claim
394 words
A double load trailer for hauling both an automobile, a boat or the like behind a towing vehicle, the trailer comprising: a first horizontal frame mounted on a wheeled axle and adapted for releasable attachment to the towing vehicle; a first vertical post mounted on the front of the first frame; second and third vertical posts mounted on the opposite sides of the rear of the first frame; a second horizontal frame disposed above the first frame, the second frame having a first sleeve attached to the front of the second frame and a second and third sleeve attached to the opposite sides of the rear of the second frame, the sleeves slidably received around the posts; a power winch mounted on the front of the first frame and having a main cable received around a main pulley and attached to the first post, the main pulley suspended between the front and rear of the first frame; a first post cable having one end attached to the first sleeve and received around a first post pulley mounted on top of the first post, the first post cable received around a first frame pulley attached to the front of the first frame, the first post cable also received around a first idle pulley attached to the rear of the first frame with the other end of the first post cable attached to the main pulley; a second post cable having one end attached to the second sleeve and received around a second post pulley mounted on top of the second post, the second post cable received around a second frame pulley attached to one side of the rear of the first frame, the second post cable received around a second idle pulley attached to the rear of the first frame with the other end of the second post cable attached to the main pulley; and a third post cable having one end attached to the third sleeve and received around a third post pulley mounted on top of the third post, the third post cable received around a third frame pulley attached to the other side of the rear of the first frame, the third post cable received around a third idle pulley attached to the rear of the first frame with the other end of the third post cable attached to the main pulley.
Claim 3
Dependent Claim
41 words
The trailer as described in claim 1 wherein the first frame includes a pair of tire guides mounted on the opposite sides of the frame and along the length thereof, the guides adapted for receiving the tires of an automobile thereon.
Claim 4
Dependent Claim
37 words
The trailer as described in claim 1 wherein the second frame includes boat guides and supports mounted on the opposite sides of the second frame and along the length thereof and adapted for receiving the boat thereon.
Claim 5
Dependent Claim
38 words
The trailer as described in claim 3 wherein the second frame further includes a bow support with hand winch attached to the front of the second frame for securing the bow of the boat against the bow support.
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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) | 1986-09-26 | 1987-03-28 | 1987-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-26 | 1991-03-28 | 1991-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-26 | 1995-03-28 | 1995-09-27 | $7700.00 | Window Closed / Lapsed |