Suspension systems for vehicles
Abstract
Abstract CONTROL MEANS FOR CONTROLLING A VEHICLE SUSPENSION SYSTEM SO AS TO MAINTAIN THE VEHICLE BODY AT A SUBSTANTIALLY CONSTANT MEAN HEIGHT DESPITE LOAD VARIATIONS AND TO OPPOSE TILTING DUE TO HORIZONTAL FORCES IN AT LEAST ONE DIRECTION (ROLL OR PITCH) IN WHICH A PLURALITY OF FLUID-CONTAINING STRUTS SUPPORTING THE BODY HAVE THEIR FLUID CONTENT CONTROLLED BY CONTROL UNITS EACH COMPRISING A SPOOL VALVE CAPABLE OF CONNECTING THE APPROPRIATE STRUT TO A SOURCE OF FLUID PRESSURE OR A DRAIN AND A VALVE CONTROL LINKAGE OPERATED BY WHEEL DISPLACEMENT RELATIVE TO THE VEHICLE BODY, THE LINKAGE INCLUDING A FIRST COMPONENT MOVABLE BY RELATIVE WHEEL-TO-BODY MOVEMENT, A SECOND COMPONENT COU- PLED TO THE VALVE SPOOL AND A WEIGHT SUSPENDED FROM THE FIRST COMPONENT AND CONNECTED BELOW ITS SUSPENSION PIVOT TO THE SECOND COMPONENT.
Inventors
- 👤 Robert Hazell Pitcher
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |