US3787030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lift support device for use with truck weighing scales
Assignee: RICKEL Inc
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Filing: 1972-05-18
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Granted: 1974-01-22
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Expires: 1992-05-18
Abstract
Abstract A wheeled device adapted to be manually directed in a sidewise direction under the front portion of the semi-trailer carries a hydraulic lift engagable with the dolly wheels or support pads of the trailer and operable to elevate the forward end of the trailer sufficiently to break the fifth wheel connection so that the trailer is supported only by its rear wheels and the lift devices. The wheels are constructed to permit the frame to descend into contact with the scale surface when the load is transferred from the tractor to the frame, and while it remains supported by the frame, so that the trailer is immobilized on the scale surface during weighing.
Inventors
- 👤 R Bieker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:18
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0857
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
244 words
A combined lift and support for use with semi-trailers of the type having a fifth wheel connection and a dolly mechanism depending below the trailer near the fifth wheel connection with trailer support members at the lower end thereof, said lift and support comprising a frame having opposite sides and ends, a plurality of wheels connected with and supporting said frame, including a side wheel adjacent each of said opposite sides, said last named wheels being parallel with one another with the axles thereof transverse to the sides of the frame, support means connected with and extending upwardly from said frame near the opposite ends thereof, a pivot arm structure connected with said support means on a horizontal pivot axis which is oriented in a direction substantially normal to said wheel axles, said pivot axis being inset in the direction toward the center of the frame from said side wheels, a truck dolly mechanism receiving cradle carried by and rigidly affixed to the outer edge of said pivot arm structure and having a cradle floor and cradle back, the cradle back being inset in the direction toward the center of the frame from said side wheels with the floor extending outwardly from the back and said back and floor defining a cradle for receiving the support members of the truck dolly mechanism, and power means carried by said frame operable to effect pivotal movement of said arm thereby to raise and lower said cradle.
Claim 2
Dependent Claim
244 words
A combined lift and support for use with semi-trailers of the type having a fifth wheel connection and a dolly mechanism depending below the trailer near the fifth wheel connection with trailer support members at the lower end thereof, said lift and support comprising a frame having opposite sides and ends, a plurality of wheels connected with and supporting said frame, including a side wheel adjacent each of said opposite sides, said last named wheels being parallel with one another with the axles thereof transverse to the sides of the frame, support means connected with and extending upwardly from said frame near the opposite ends thereof, a pivot arm structure connected with said support means on a horizontal pivot axis which is oriented in a direction substantially normal to said wheel axles, said pivot axis being inset in the direction toward the center of the frame from said side wheels, a truck dolly mechanism receiving cradle carried by and rigidly affixed to the outer edge of said pivot arm structure and having a cradle floor and cradle back, the cradle back being inset in the direction toward the center of the frame from said side wheels with the floor extending outwardly from the back and said back and floor defining a cradle for receiving the support members of the truck dolly mechanism, and power means carried by said frame operable to effect pivotal movement of said arm thereby to raise and lower said cradle.
Claim 3
Dependent Claim
62 words
A combined lift and support as in claim 1, said cradle comprising an elongate trough extending from one end to the other of said frame and of generally L-shape in cross section with the cradle floor providing one surface of the trough and the cradle back the other, the orientation of the floor and back being substantially parallel with said pivot axis.
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) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |