Patent US3261620A successfully refreshed from Google Patents.
US3261620A
Expired / Lapsed
US
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Ball joint of steering wheels of a vehicle equipped with a hydropneumatic suspension system
Assignee: Automobiles Citroen SA
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Filing: 1964-06-09
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Granted: 1966-07-19
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Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 Cadiou Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:38
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/26; B60G7/00; B60G7/005; F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0619; F16C2326/00; F16C2326/01; F16C2326/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
MOUNTING FOR THE STEERABLE WHEEL OF AN AUTOMOTIVE VEHICLE EQUIPPED WITH A HYDROPNEUMATIC SUSPENSION SYSTEM WHEREIN THE STUB IS CARRIED BY TWO BALL JOINTS DISPOSED SYMMETRICALLY ABOVE AND BENEATH SAID STUB-AXLE AT THE END OF A PAIR OF SUSPENSION ARMS PIVOTALLY MOUNTED ON THE FRAME OF THE VEHICLE, ONE OF SAID ARMS HAVING PIVOTED THEREON THE PISTON OF THE HYDROPNEUMATIC SUSPENSION SYSTEM, WHICH COMPRISES AT THE OUTER END OF SAID ONE ARM CONNECTED TO SAID SUSPENSION SYSTEM A BEARING BALL OF ONE OF SAID BALL JOINTS THROUGH WHICH IS DUCT IS FORMED, A FLEXIBLE PIPE LINE CONNECTING SAID DUCT TO SAID HYDROPNEUMATIC SUSPENSION SYSTEM, A BALL SUPPORT FOR SAID ONE JOINT RIGID WITH SAID STUD-AXLE AND A GAGED CONCAVE SEAT FORMED IN SAID BALL SUPPORT, WHEREBY THE SUSPENSION FLUID AT THE PRESSURE PREVAILING IN SAID HYDROPNEUMATIC SYSTEM IS DIRECTED TO SAID SEAT.
Claim 2
Dependent Claim
142 words
MOUNTING FOR THE STEERABLE WHEEL OF AN AUTOMOTIVE VEHICLE EQUIPPED WITH A HYDROPNEUMATIC SUSPENSION SYSTEM WHEREIN THE STUB IS CARRIED BY TWO BALL JOINTS DISPOSED SYMMETRICALLY ABOVE AND BENEATH SAID STUB-AXLE AT THE END OF A PAIR OF SUSPENSION ARMS PIVOTALLY MOUNTED ON THE FRAME OF THE VEHICLE, ONE OF SAID ARMS HAVING PIVOTED THEREON THE PISTON OF THE HYDROPNEUMATIC SUSPENSION SYSTEM, WHICH COMPRISES AT THE OUTER END OF SAID ONE ARM CONNECTED TO SAID SUSPENSION SYSTEM A BEARING BALL OF ONE OF SAID BALL JOINTS THROUGH WHICH IS DUCT IS FORMED, A FLEXIBLE PIPE LINE CONNECTING SAID DUCT TO SAID HYDROPNEUMATIC SUSPENSION SYSTEM, A BALL SUPPORT FOR SAID ONE JOINT RIGID WITH SAID STUD-AXLE AND A GAGED CONCAVE SEAT FORMED IN SAID BALL SUPPORT, WHEREBY THE SUSPENSION FLUID AT THE PRESSURE PREVAILING IN SAID HYDROPNEUMATIC SYSTEM IS DIRECTED TO SAID SEAT.
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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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |