US3627154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailerable towing device and jack for vehicles
Assignee: Individual
•
Filing: 1970-06-03
•
Granted: 1971-12-14
•
Expires: 1990-06-03
Abstract
Abstract A trailerable towing device and jack for vehicles having a single source of lifting effort applied to an equalizer bar which is guided along parallel guide rails inclined upwardly and forwardly. The equalizer bar terminates in two flexible belts having chains at the end portion thereof for engaging the undercarriage of a vehicle, usually an automobile which has been disabled and is to be towed. A lower frame rides atop a pair of castered rear wheels with a retractable wheel at the front portion and a draw bar with a standard trailer hitch attachment. The guide rails are demountably secured to the lower frame by means of a demountable brace. The entire assembly, by removing several bolts may be knocked down for shipment in a flat configuration or similarly knocked down for storage.
Inventors
- 👤 Ralph E Troup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:48
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/12; B60P3/125; B60P3/127
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
186 words
A trailerable towing device and jack for vehicles comprising, in combination, a lower frame, a pair of running wheels mounted beneath the lower frame for ground engagement, a pair of parallel guide rails mounted to the lower frame and extending upwardly and forwardly, brace means securing said guide rails, a jack frame having means thereon for engaging the guide rails, a jack positioned centrally of the jack frame, an equalizer bar assembly means for slidingly engaging the parallel guide rails said equalizer bar having means for a pivotal engagement at its end portion with said guide rail engaging means, a pair of flexible straps secured to the equalizer bar assembly, chain means at the end portion of said flexible straps, and chain engaging means at the end portion of the chain whereby when the vehicle is engaged by securing the chain to an underportion thereof, the same may be raised by actuating the jack which, in turn, raises the equalizer bar and the straps to the end that the trailed vehicle is lifted with its end portion cradled by the straps and against the parallel guides.
Claim 2
Dependent Claim
186 words
A trailerable towing device and jack for vehicles comprising, in combination, a lower frame, a pair of running wheels mounted beneath the lower frame for ground engagement, a pair of parallel guide rails mounted to the lower frame and extending upwardly and forwardly, brace means securing said guide rails, a jack frame having means thereon for engaging the guide rails, a jack positioned centrally of the jack frame, an equalizer bar assembly means for slidingly engaging the parallel guide rails said equalizer bar having means for a pivotal engagement at its end portion with said guide rail engaging means, a pair of flexible straps secured to the equalizer bar assembly, chain means at the end portion of said flexible straps, and chain engaging means at the end portion of the chain whereby when the vehicle is engaged by securing the chain to an underportion thereof, the same may be raised by actuating the jack which, in turn, raises the equalizer bar and the straps to the end that the trailed vehicle is lifted with its end portion cradled by the straps and against the parallel guides.
Claim 3
Dependent Claim
72 words
In the towing device of claim 1 above, a demountable brace at the forward portion of the lower frame, said brace being secured to the lateral portions of the jack frame, said lateral portions of the jack frame proportioned for engaging the guide rails, said guide rails being demountable to the lower frame at a rear portion thereof whereby the entire unit may be disassembled by removing removable means at fixed locations.
Claim 4
Dependent Claim
54 words
In the towing device of claim 1, means defining a plurality of transverse holes in the guide rails, and pins for removable insertion into said hole means whereby the equalizer bar and strap assembly may be secured along elevated positions on said parallel guide rails and the jack means released from a holding function.
Claim 5
Dependent Claim
82 words
In the towing device of claim 1 above, a single jack at the central portion of the jack frame characterized by a sprocket at the extension portion thereof, a flexible tension member anchored at one end near the base portion of the jack, the other end of said flexible tension member wrapped around said sprocket and secured to the equalizer bar, whereby upon extending the jack the flexible tension member is forced to raise the equalizer bar by actuation of the jack.
Claim 6
Dependent Claim
54 words
In the towing device of claim 2, means defining a plurality of transverse holes in the guide rails, and pins for removable insertion into said hole means whereby the equalizer bar and strap assembly may be secured along elevated positions on said parallel guide rails and the jack means released from a holding function.
Claim 7
Dependent Claim
82 words
In the towing device of claim 2 above, a single jack at the central portion of the jack frame characterized by a sprocket at the extension portion thereof, a flexible tension member anchored at one end near the base portion of the jack, the other end of said flexible tension member wrapped around said sprocket and secured to the equalizer bar, whereby upon extending the jack the flexible tension member is forced to raise the equalizer bar by actuation of the jack.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |