US3651965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel chair ramp for automotive vehicles
Assignee: Clover Industries Inc
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Filing: 1970-05-01
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Granted: 1972-03-28
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Expires: 1990-05-01
Abstract
Abstract This ramp is adapted to be permanently secured to a vehicle. Two stanchions are fixed at the two sides of a door of the vehicle. Two levers, which are pivoted at their lower ends to the stanchions carry a floor section of the ramp. To this section is hinged a second floor section; and to this second floor section is hinged the step plate or lip of the ramp. Fluid-pressureoperated pistons and cables through manually operated switches open the ramp to swing it down out of the door of the vehicle to a position where a wheel chair patient can roll his or her chain with himself or herself in it onto the ramp and into or out of the vehicle. When the patient is safely inside or outside the vehicle he can operate the switches to fold the ramp into the vehicle, and close the door.
Inventors
- 👤 Le Roy S Simonelli
- 👤 Leonard N Randolph
- 👤 Sam Damico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:15
CPC Classifications
A; A61; A61G; A61G3/00; A61G3/02; A61G3/06; A61G3/061
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
197 words
The combination with an automotive vehicle having a door opening therein, of a foldable and extensible ramp comprising a plurality of floor sections hingedly connected together, means in said door opening for supporting said ramp, and means operable selectively to fold said ramp into said vehicle through said opening and extend said ramp out of said opening, said supporting means comprising a pair of vertically extending posts disposed, respectively, at opposite sides of said door opening, and two lever arms, each pivotally connected at one end to one of said posts, respectively, and swingable in parallel paths from a lower position adjacent and approximately parallel to the floor of the vehicle to an erected position approximately parallel to said posts, and said ramp comprising a first floor section slidably mounted on said lever arms, a second floor section hingedly connected to said first floor section, and a lip hingedly connected to said second floor section, and means for pivoting said arms on said posts, means for selectively raising and lowering said first floor section, means for hinging said second floor section on said first floor section, and means for hinging said lip on said second floor section.
Claim 2
Dependent Claim
197 words
The combination with an automotive vehicle having a door opening therein, of a foldable and extensible ramp comprising a plurality of floor sections hingedly connected together, means in said door opening for supporting said ramp, and means operable selectively to fold said ramp into said vehicle through said opening and extend said ramp out of said opening, said supporting means comprising a pair of vertically extending posts disposed, respectively, at opposite sides of said door opening, and two lever arms, each pivotally connected at one end to one of said posts, respectively, and swingable in parallel paths from a lower position adjacent and approximately parallel to the floor of the vehicle to an erected position approximately parallel to said posts, and said ramp comprising a first floor section slidably mounted on said lever arms, a second floor section hingedly connected to said first floor section, and a lip hingedly connected to said second floor section, and means for pivoting said arms on said posts, means for selectively raising and lowering said first floor section, means for hinging said second floor section on said first floor section, and means for hinging said lip on said second floor section.
Claim 3
Dependent Claim
59 words
The combination claimed in claim 1, wherein said means for pivoting said arms on said posts, said means for raising and lowering said first floor section, said means for hinging said second floor section on said first floor section, and said means for hinging said lip on said second floor section are operable separately and independently of one another.
Claim 4
Dependent Claim
23 words
The combination claimed in claim 2, wherein said several means are all operated by electrically controlled means, including separate manually operable electric switches.
Claim 5
Dependent Claim
87 words
The combination claimed in claim 3, wherein said electrically operated means includes, in the case of said means for pivoting said arms, a cylinder pivotally connected to the floor of the vehicle, a piston reciprocable in said cylinder and pivotally connected at its outer end to one of said arms, and a solenoid-operated valve for controlling the direction of flow of motive fluid to said cylinder to control the direction of movement of said piston in said cylinder, and thereby the direction of swing of said arms.
Claim 6
Dependent Claim
101 words
The combination claimed in claim 3, wherein said electrically operated means includes, in the case of said means for hinging said second floor section on said first floor section a cylinder pivotally connected to said first floor section, a piston reciprocable in said cylinder and pivotally mounted at its outer end to said second floor section, and a solenoid-operated valve for controlling the direction of flow of motive fluid to said cylinder to control the direction of movement of said piston in said cylinder, and thereby the direction of hinging movement of said second floor section on said first floor section.
Claim 7
Dependent Claim
112 words
The combination claimed in claim 3, wherein said electrically controlled means includes, in the case of said means for hinging said lip on said second floor section, a vertically disposed cylinder, a piston reciprocable in said cylinder, a sheave carried by said piston on the upper end thereof, a cable secured at one end to the floor of the vehicle and secured at its opposite end to said lip, and a solenoid-operated valve for controlling the direction of flow of motive fluid to said cylinder to control the direction of movement of said piston in said cylinder, and thereby the direction of hinging movement of said lip on said second floor section.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |