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Patent US3866771A successfully refreshed from Google Patents.
US3866771A
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Vehicle loading ramp displacement apparatus
Assignee: REID S TRAILER Inc
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Filing: 1973-04-16
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Granted: 1975-02-18
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Expires: 1993-04-16
Abstract
Abstract Apparatus for facilitating the displacement of loading ramps pivotably mounted upon a vehicle includes an electrically operated winch mechanism connected to a boom, the boom being pivotably mounted upon the vehicle and attached to the loading ramps through flexible connectors.
Inventors
- 👤 Lloyd W Reid
- 👤 Billy D Rayle
- 👤 Harold C Flinchum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:49
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/43
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
127 words
A vehicle having an elongated frame, a deck upon said frame defining a cargo supporting area, loading ramp means including a pair of spaced ramps at one end of said frame, means pivotably mounting said loading ramp means upon said frame for movement between a first, lowered position for facilitating loading and unloading of cargo, and a second, raised position during travel of the vehicle, a boom pivotably connected to said frame between said spaced ramps and flexible means interconnecting each of said spaced ramps to said boom, and power means including a winch recessed within said frame between said spaced ramps and having an elongated flexible member attached thereto and to the freE end of said boom for pivoting said ramp means relative to said frame.
Claim 2
Dependent Claim
127 words
A vehicle having an elongated frame, a deck upon said frame defining a cargo supporting area, loading ramp means including a pair of spaced ramps at one end of said frame, means pivotably mounting said loading ramp means upon said frame for movement between a first, lowered position for facilitating loading and unloading of cargo, and a second, raised position during travel of the vehicle, a boom pivotably connected to said frame between said spaced ramps and flexible means interconnecting each of said spaced ramps to said boom, and power means including a winch recessed within said frame between said spaced ramps and having an elongated flexible member attached thereto and to the freE end of said boom for pivoting said ramp means relative to said frame.
Claim 3
Dependent Claim
32 words
A vehicle as recited in claim 1, wherein said boom is generally in the form of an isosceles triangle with the portions of the triangle opposite the pivot being generally horizontally disposed.
Claim 4
Dependent Claim
23 words
A vehicle as recited in claim 1, wherein said boom comprises a single, elongated lever having one end pivotably mounted to said frame.
Claim 5
Dependent Claim
38 words
A vehicle as recited in claim 1, wherein said winch means includes an electric motor connected to the vehicle electrical system, said power means further including motor control means mounted upon said vehicle frame adjacent said ramp means.
Claim 6
Dependent Claim
26 words
A vehicle as recited in claim 1, and further including means for securing said ramp means in the second, raised position during travel of the vehicle.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |