Detachable folding trailer ramp
US5678984A · kind A · utility
30Cited by
13References
2Claims
0Family size
Inventor
Key dates
| Filing date | Sep 30, 1996 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Sep 30, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P1/43
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A ramp for flatbed trucks and trailers which may be attached or removed from the vehicle in a matter of seconds and requires no modification of the trailer. The invention utilizes two ramp sections which are pivotally secured together by a double piano hinge assembly and driven by a pair of hydraulic cylinders. A series of legs depending from the forward edge of the from ramp engage the sockets commonly found at the rear of a flatbed as the forward vertical framework of the ramp engages the trailer's rear safety bar for added stability and strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.