Patent US5394583A successfully refreshed from Google Patents.
US5394583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-loading ramp for a wheeled vehicle
Assignee: Vermeer Manufacturing Co
•
Filing: 1993-09-17
•
Granted: 1995-03-07
•
Expires: 2013-09-17
Abstract
Abstract A ramp for loading and unloading vehicles includes an elevated track assembly. A ramp assembly is mounted on the track assembly. The ramp has wheel support surfaces extending substantially an entire length of the ramp. A movable track is carried on the track assembly with the track extending a length of the assembly. The ramp is coupled to the track for the ramp to be urged by the track to slide on the assembly.
Inventors
- 👤 Craig Plate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:30
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/43; B60P1/433; B60P3/00; B60P3/06; B60P3/12; B60P3/122
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
150 words
A ramp for loading and unloading a vehicle, comprising: (a) an elevated track assembly; (b) a ramp assembly mounted for longitudinal movement on said track assembly between a forward, transport position atop said track assembly and an operating position extended rearwardly and downwardly from said track assembly; (c) means for moving said ramp assembly between said transport and operating position; (d) means associated with said ramp assembly for moving the vehicle between a ramp-supported position and ground-supported position when said ramp assembly is in said operating position; said ramp having wheel support surfaces extending substantially an entire length of said ramp; said track assembly containing motive power means and a movable track extending a length of said assembly; said ramp coupled to said track assembly for sliding movement thereon and said ramp coupled to said track for said ramp to be urged by said track to slide on said assembly.
Claim 2
Dependent Claim
150 words
A ramp for loading and unloading a vehicle, comprising: (a) an elevated track assembly; (b) a ramp assembly mounted for longitudinal movement on said track assembly between a forward, transport position atop said track assembly and an operating position extended rearwardly and downwardly from said track assembly; (c) means for moving said ramp assembly between said transport and operating position; (d) means associated with said ramp assembly for moving the vehicle between a ramp-supported position and ground-supported position when said ramp assembly is in said operating position; said ramp having wheel support surfaces extending substantially an entire length of said ramp; said track assembly containing motive power means and a movable track extending a length of said assembly; said ramp coupled to said track assembly for sliding movement thereon and said ramp coupled to said track for said ramp to be urged by said track to slide on said assembly.
Claim 3
Dependent Claim
25 words
A self-loading ramp as defined in claim 1, wherein said ramp assembly has a forward end portion constrained for longitudinal movement in said track assembly.
Claim 4
Dependent Claim
18 words
A self-loading ramp as defined in claim 1, wherein the vehicle is releasably secured to said ramp assembly.
References Cited (Backward Citations)
US4715769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-03-06 | 1998-09-05 | 1999-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-06 | 2002-09-05 | 2003-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-06 | 2006-09-05 | 2007-03-07 | $7700.00 | Window Closed / Lapsed |