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US4089425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-loading trailer
Assignee: Individual
•
Filing: 1975-07-01
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Granted: 1978-05-16
•
Expires: 1995-07-01
Abstract
Abstract A self-loading trailer for handling heavy or large loads wherein the trailer includes a load cradle supported on wheels for tilting movement. An arm including a load engaging means is carried by the cradle for free pivotal movement with respect thereto when the cradle is tilted.
Inventors
- 👤 Harold D. Baltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:24
CPC Classifications
B; B62; B62D; B62D63/00; B62D63/06; B62D63/062; Y; Y10; Y10S; Y10S414/00; Y10S414/124
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
125 words
A self-loading trailer for handling a load, which trailer comprises, in combination: a. a load cradle having a front portion, a rear portion and a cross bar carried by the front portion; b. wheel means supporting the cradle through a first pivotal axis for tilting the cradle in both the forward and rearward directions; c. a load engaging arm carried by the cross bar for free pivotal movement with respect to the front portion of the cradle; d. a hitch frame having a first end pivotally connected to the front portion of the cradle through a second pivotal axis and a second end for connecting to a tow vehicle through a third pivotal axis wherein, when the trailer is being pulled in a forward direction;
Claim 2
Dependent Claim
125 words
A self-loading trailer for handling a load, which trailer comprises, in combination: a. a load cradle having a front portion, a rear portion and a cross bar carried by the front portion; b. wheel means supporting the cradle through a first pivotal axis for tilting the cradle in both the forward and rearward directions; c. a load engaging arm carried by the cross bar for free pivotal movement with respect to the front portion of the cradle; d. a hitch frame having a first end pivotally connected to the front portion of the cradle through a second pivotal axis and a second end for connecting to a tow vehicle through a third pivotal axis wherein, when the trailer is being pulled in a forward direction;
Claim 3
Dependent Claim
146 words
the horizontal plane within which the second pivotal axis is located is disposed above the cross bar, and 2. the horizontal plane within which the third pivotal axis is located is disposed above the horizontal plane within which the first pivotal axis is located; e. the hitch frame including at least one leg portion extending substantially rearwardly of the second pivotal axis for bearing downwardly against the cross bar and stopping the forward tilting movement of the cradle, with the second pivotal axis being disposed intermediate the leg portion and the second end of the hitch frame; and f. a cross brace for supporting the pivotal arm in a substantially upwardly extending position, which cross brace is carried by the first end of the hitch frame and is disposed forwardly of and above the cross bar when the trailer is being pulled in a forward direction.
Claim 4
Dependent Claim
146 words
the horizontal plane within which the second pivotal axis is located is disposed above the cross bar, and 2. the horizontal plane within which the third pivotal axis is located is disposed above the horizontal plane within which the first pivotal axis is located; e. the hitch frame including at least one leg portion extending substantially rearwardly of the second pivotal axis for bearing downwardly against the cross bar and stopping the forward tilting movement of the cradle, with the second pivotal axis being disposed intermediate the leg portion and the second end of the hitch frame; and f. a cross brace for supporting the pivotal arm in a substantially upwardly extending position, which cross brace is carried by the first end of the hitch frame and is disposed forwardly of and above the cross bar when the trailer is being pulled in a forward direction.
Claim 5
Dependent Claim
28 words
The trailer of claim 1 wherein the load engaging arm includes: a. a free terminal end, and b. a load engaging means carried by the free terminal end.
Claim 6
Dependent Claim
15 words
The trailer of claim 2 wherein the load engaging means includes a plurality of tines.
Claim 7
Dependent Claim
19 words
The trailer of claim 1 wherein the rear portion of the cradle includes means for engaging the ground surface.
Claim 8
Dependent Claim
14 words
The trailer of claim 4 wherein the ground engaging means includes a cylindrical-shaped roller.
Claim 9
Dependent Claim
39 words
The trailer of claim 1 wherein the wheel means includes: a. an axle, b. a wheel rotatably carried adjacent each end of the axle, and c. brake means for locking the wheels against rotation during tilting of the cradle.
Claim 10
Dependent Claim
14 words
The trailer of claim 1 wherein the cradle is of a substantially arcuate configuration.
Claim 11
Dependent Claim
25 words
The trailer of claim 1 wherein the second end of the hitch frame includes means for detachably connecting the hitch frame to the tow vehicle.
Claim 12
Dependent Claim
13 words
The trailer of claim 1 wherein the hitch frame includes two leg portions.
Claim 13
Dependent Claim
23 words
The trailer of claim 9 wherein the two leg portions are each of a substantially elongate configuration and have substantially parallel longitudinal axes.
References Cited (Backward Citations)
US1057787A
Cited
US2418522A
Cited
US2534868A
Cited
US3450281A
Cited
US3662900A
Cited
US3985253A
Cited
US3938682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |