US4022290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Off-road vehicle
Assignee: Secmafer SA
•
Filing: 1975-06-05
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Granted: 1977-05-10
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Expires: 1995-06-05
Abstract
Abstract The present invention has for its object an off-road vehicle comprising a central chassis at each end of which is articulated about a transverse axis, a bogie chassis with a jack acting between the central chassis and each bogie chassis to permit regulation of their relative longitudinal inclinations, the transverse axis of articulation of each bogie chassis on the central chassis being located in the neighborhood of the end of the bogie chassis adjacent to the central chassis, the transverse axis of articulation being located above the plane of the axes of bogie wheels and the jack acting between the central chassis and a point of the chassis carrying the wheels located below the transverse axis.
Inventors
- 👤 Jean-Jacques Boyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:29
CPC Classifications
F; F41; F41H; F41H7/00; F41H7/02; B; B62; B62D; B62D53/00; B62D53/005; B62D53/02; B62D53/021; B62D61/00; B62D61/12; F41H7/04; F41H7/048
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
134 words
An off-road vehicle comprising a central chassis at each end of which is articulated, about a transverse axis, a bogie chassis with a jack acting between the central chassis and each bogie chassis to permit regulation of their relative longitudinal inclinations, each bogie chassis having supports thereon mounted for rotation about horizontal axes disposed at the front and rear of it for supporting the bogie chassis on the ground, the transverse axis of articulation of each bogie chassis on the central chassis being located at the end of the bogie chassis adjacent to the central chassis and being located above the plane of said axes, said jacks acting between the central chassis and a point on the bogie chassis which is located below the transverse axis of articulation of the associated said bogie chassis.
Claim 2
Dependent Claim
134 words
An off-road vehicle comprising a central chassis at each end of which is articulated, about a transverse axis, a bogie chassis with a jack acting between the central chassis and each bogie chassis to permit regulation of their relative longitudinal inclinations, each bogie chassis having supports thereon mounted for rotation about horizontal axes disposed at the front and rear of it for supporting the bogie chassis on the ground, the transverse axis of articulation of each bogie chassis on the central chassis being located at the end of the bogie chassis adjacent to the central chassis and being located above the plane of said axes, said jacks acting between the central chassis and a point on the bogie chassis which is located below the transverse axis of articulation of the associated said bogie chassis.
Claim 3
Dependent Claim
24 words
An off-road vehicle according to claim 1, in which one at least of the bogie chassis is mounted for rotation about a longitudinal axis.
Claim 4
Dependent Claim
42 words
An off-road vehicle according to claim 2, in which the longitudinal and transverse axes of articulation are in a same plane, the corresponding jack being articulated by a ball-and-socket or a universal joint on the central chassis and on the bogie chassis.
Claim 5
Dependent Claim
53 words
An off-road vehicle according to claim 2, in which the longitudinal and transverse axes of articulation are provided by an intermediate member articulated on the central chassis about a transverse axis, and on which the jack acts, the bogie chassis being mounted for rotation about a longitudinal axle carried by said intermediate member.
Claim 6
Dependent Claim
32 words
An off-road vehicle according to claim 4, in which the inclination of each bogie about the longitudinal axis is controlled by dash pots acting between said intermediate member and the bogie chassis.
Claim 7
Dependent Claim
16 words
An off-road vehicle according to claim 1, and means on said bogies for rotating said supports.
Claim 8
Dependent Claim
13 words
An off-road vehicle according to claim 1, in which said supports comprise wheels.
Claim 9
Dependent Claim
14 words
An off-road vehicle according to claim 1, in which said supports comprise endless treads.
References Cited (Backward Citations)
US2220890A
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US2393324A
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US3351037A
Cited
US3161172A
Cited
US3161246A
Cited
US3414072A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |