Patent US3685853A successfully refreshed from Google Patents.
US3685853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load transfer dolly
Assignee: CCI Corp
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Filing: 1970-01-16
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Granted: 1972-08-22
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Expires: 1990-01-16
Abstract
Abstract Axle vehicle loads are transferred or equalized utilizing a wheeled dolly to create a variable wheelbase which is adapted to be moved from a retracted position on the basic vehicle frame to a maximum outward position. The axle and wheels of the load transfer dolly are pivoted from an inoperative, above-the-road position downwardly to engagement with the road and, by the application of additional pressure, will take up a portion of the load of the vehicle.
Inventors
- 👤 Ave S Goldsmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:53
CPC Classifications
B; B62; B62D; B62D61/00; B62D61/12; B62D61/125; B60; B60P; B60P3/00; B60P3/16; B62D53/00; B62D53/04; B62D53/06; B62D53/068; B62D7/00; B62D7/02; B62D7/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
173 words
A dolly to increase the wheeled, load carrying capacity of a given vehicle comprising: an extensible frame movable rearwardly and forwardly upon the rear end frame of said vehicle; means to move said extensible frame from or to a position substantially beneath said rear end frame rearwardly to a desired position; an axle having wheels on the ends thereof spaced about the same track as said vehicle wheels, said axle mounted to said extensible frame so as to pivot relative thereto: 1. about a first horizontal transverse axis; and 2. about a second axis which is in a transverse plane to said first axis whereby said wheeled axle trails with said vehicle; and 3. about a third axis substantially parallel to the forwardrearward axis of said extensible frame, whereby said wheeled axle pivots in a transverse plane to said extensible frame; and means to controllably pivot said wheeled axle about said first horizontal transverse axis from and between a position where said wheels are off the ground to a position on the ground.
Claim 2
Dependent Claim
173 words
A dolly to increase the wheeled, load carrying capacity of a given vehicle comprising: an extensible frame movable rearwardly and forwardly upon the rear end frame of said vehicle; means to move said extensible frame from or to a position substantially beneath said rear end frame rearwardly to a desired position; an axle having wheels on the ends thereof spaced about the same track as said vehicle wheels, said axle mounted to said extensible frame so as to pivot relative thereto: 1. about a first horizontal transverse axis; and 2. about a second axis which is in a transverse plane to said first axis whereby said wheeled axle trails with said vehicle; and 3. about a third axis substantially parallel to the forwardrearward axis of said extensible frame, whereby said wheeled axle pivots in a transverse plane to said extensible frame; and means to controllably pivot said wheeled axle about said first horizontal transverse axis from and between a position where said wheels are off the ground to a position on the ground.
Claim 3
Dependent Claim
23 words
about a second axis which is in a transverse plane to said first axis whereby said wheeled axle trails with said vehicle; and
Claim 4
Dependent Claim
23 words
about a second axis which is in a transverse plane to said first axis whereby said wheeled axle trails with said vehicle; and
Claim 5
Dependent Claim
52 words
A dolly of claim 1 wherein said wheeled axle mounting comprises: an upper mounting plate pivotally movable about said first axis; a lower mounting plate rotatably supported to said upper mounting plate about said second axis; and means to rotatably support said axle to said lower mounting plate about said third axis.
Claim 6
Dependent Claim
21 words
A dolly of claim 1 including means to releasably latch said wheeled axle to said vehicle frame in said above-the-ground position.
Claim 7
Dependent Claim
59 words
about a third axis substantially parallel to the forward-rearward axis of said extensible frame, whereby said wheeled axle pivots in a transverse plane to said extensible frame; and means to controllably pivot said wheeled axle about said first horizontal transverse axis from and between a position where said wheels are off the ground to a position on the ground.
Claim 8
Dependent Claim
59 words
about a third axis substantially parallel to the forward-rearward axis of said extensible frame, whereby said wheeled axle pivots in a transverse plane to said extensible frame; and means to controllably pivot said wheeled axle about said first horizontal transverse axis from and between a position where said wheels are off the ground to a position on the ground.
Claim 9
Dependent Claim
23 words
A dolly according to claim 2 including means to limit the relative side to side rotation of said lower and upper mounting plates.
Claim 10
Dependent Claim
23 words
A dolly according to claim 4 including means to lock said lower mounting plate to said upper mounting plate in a fixed position.
Claim 11
Dependent Claim
31 words
A dolly in accord with claim 1 including resilient bumper members positioned between said extension frame and said axle to restrict the rotatable movement of said axle about said third axis.
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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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |