US3669409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle attitude stabilization and control system
Assignee: Individual
•
Filing: 1970-12-14
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Granted: 1972-06-13
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Expires: 1990-12-14
Abstract
Abstract A system for stabilizing and controlling the attitude of a vehicle with respect to the underlying terrain when stationary by means of double acting jacks including means for pressure equalization therebetween is disclosed. Electrical control circuitry providing means for fully automatic leveling including a novel pendulum actuated electrical switch is described. Novel jack means particularly adapted for use in the system and preferred electrical control circuitry are disclosed.
Inventors
- 👤 John Eranosian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:47
CPC Classifications
B; B60; B60S; B60S9/00; B60S9/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
211 words
In a system for stabilizing and leveling a stationary vehicle having a longitudinal axis and a transverse axis; a source of pressurized fluid mounted on said vehicle; a first hydraulic jack means mounted on said vehicle and adapted to be lowered into engagement with the underlying terrain hydraulically connected to said source of pressurized fluid through a first electrically actuated valve; a second hydraulic jack means mounted on said vehicle and adapted to be lowered into engagement with the underlying terrain hydraulically connected to said source of pressurized fluid through a second electrically actuated valve; said first and second jack means being mounted on opposite sides of one of said axes of said vehicle and on the same side of the other of said axes of said vehicle; and electrical control circuitry comprising first normally open manual switch means for simultaneously actuating both of said valves to lower both of said jack means into engageMent with the underlying terrain; second normally open manual switch means for simultaneously actuating both of said valves to raise both of said jack means; automatic means for actuating each of said valves individually and both of said valves simultaneously to lower said jack means; and third normally open manual switch means for actuating said automatic means.
Claim 2
Dependent Claim
211 words
In a system for stabilizing and leveling a stationary vehicle having a longitudinal axis and a transverse axis; a source of pressurized fluid mounted on said vehicle; a first hydraulic jack means mounted on said vehicle and adapted to be lowered into engagement with the underlying terrain hydraulically connected to said source of pressurized fluid through a first electrically actuated valve; a second hydraulic jack means mounted on said vehicle and adapted to be lowered into engagement with the underlying terrain hydraulically connected to said source of pressurized fluid through a second electrically actuated valve; said first and second jack means being mounted on opposite sides of one of said axes of said vehicle and on the same side of the other of said axes of said vehicle; and electrical control circuitry comprising first normally open manual switch means for simultaneously actuating both of said valves to lower both of said jack means into engageMent with the underlying terrain; second normally open manual switch means for simultaneously actuating both of said valves to raise both of said jack means; automatic means for actuating each of said valves individually and both of said valves simultaneously to lower said jack means; and third normally open manual switch means for actuating said automatic means.
Claim 3
Dependent Claim
186 words
In a system as claimed in claim 1, third and fourth hydraulic jack means mounted on said vehicle and adapted to be lowered into contact with the underlying terrain hydraulically connected to said source of pressurized fluid through third and fourth electrically actuated valves, respectively; said third and fourth jack means being mounted on opposite sides of said one of said axes of said vehicle from each other and on the opposite side of said other of said axes of said vehicle from said first and second jack means; said first normally open manual switch means being adapted to simultaneously actuate said third and fourth valves to lower said third and fourth jack means into engagement with the underlying terrain independently of said first and second jack means; said second normally open manual switch means being adapted to actuate said third and fourth valves simultaneously with said first and second valves to simultaneously raise all of said jack means; and said automatic means being adapted to actuate any one of said valves independently and any two adjacent valves simultaneously to lower said jack means associated therewith.
Claim 4
Dependent Claim
38 words
The system as claimed in claim 1 wherein said first and second jack means are mounted on opposite sides of said longitudinal axis of said vehicle and on the same side of said transverse axis of said vehicle.
Claim 5
Dependent Claim
62 words
The system as claimed in claim 2 wherein said first and second jack means are mounted on opposite sides of said transverse axis of said vehicle on one side of the longitudinal axis thereof and said third and fourth jack means are mounted on opposite sides of said transverse axis of said vehicle on the other side of the longitudinal axis thereof.
Claim 6
Dependent Claim
29 words
The system as claimed in claim 4 wherein said jack means are located with respect to each other such that lines drawn therebetween in numerical order form a rectangle.
Claim 7
Dependent Claim
54 words
The system as claimed in claim 1 wherein said first and second hydraulic jack means each comprise a scissors jack structure actuated by a hydraulic ram and wherein said first and second jack means are mounted at opposite ends of a tubular metallic beam member with said hydraulic rams housed within said beam member.
Claim 8
Dependent Claim
201 words
The system as claimed in claim 1 wherein said automatic means includes a pendulum actuated electrical switch comprising a pendulum member having an external circular electrical contact surface of given diameter thereon, a pair of spaced electrical contact members insulated from each other and having coplanar concave conducting surfaces defining equal portions of an arc of substantially 180* of a circle having a diameter slightly larger than said given diameter, means suspending said pendulum member with said circular electrical contact surface thereon in the plane of said conducting surfaces of said contact members from a point concentric with said circle, said pendulum actuated switch being oriented such that the diameter of said circle passing through the ends of said 180* arc of said circle formed by said conducting surfaces of said contact members is perpendicular to said one axis of said vehicle, the space between adjacent ends of said conducting surfaces on said contact members is centered on a radius of said circle which is parallel to said one axis of said vehicle, and the plane in which said conducting surfaces of said contact members are coplanar is parallel to a selected generally horizontal surface of said vehicle to be leveled.
Claim 9
Dependent Claim
191 words
A jack unit comprising a tubular metallic beam; a pair of hydraulic rams having their cylinders rigidly mounted within said tubular metallic beam co-axially thereoF, the piston rod of each of said rams being adapted to project from the cylinder thereof along the axis of said tubular metallic beam and toward a different end thereof, said beam having a pair of opposed slots through the wall thereof at each end; a pair of scissors jacks each mounted at a different end of said beam, said scissors jacks each comprising a first pair of lever arms pivoted about a first pin fixedly mounted in the associated end of such beam, and a second pair of lever arms pivoted about a pin received in said pair of opposed slots at the associated end of said beam, said piston rod of each of said rams being mechanically connected to the one of said second pins at the end of said beam toward which said piston rod projects and each of said lever arms of said first pair of lever arms being pivotally connected to a different one of said second pair of lever arms.
Claim 10
Dependent Claim
191 words
A jack unit comprising a tubular metallic beam; a pair of hydraulic rams having their cylinders rigidly mounted within said tubular metallic beam co-axially thereoF, the piston rod of each of said rams being adapted to project from the cylinder thereof along the axis of said tubular metallic beam and toward a different end thereof, said beam having a pair of opposed slots through the wall thereof at each end; a pair of scissors jacks each mounted at a different end of said beam, said scissors jacks each comprising a first pair of lever arms pivoted about a first pin fixedly mounted in the associated end of such beam, and a second pair of lever arms pivoted about a pin received in said pair of opposed slots at the associated end of said beam, said piston rod of each of said rams being mechanically connected to the one of said second pins at the end of said beam toward which said piston rod projects and each of said lever arms of said first pair of lever arms being pivotally connected to a different one of said second pair of lever arms.
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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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |