Vehicle axle spindle
Abstract
Abstract A HOLLOW AXLE SPINDLE FOR A VEHICLE IS FORMED WITH AN AXIALLY EXTENDING CAVITY BY COLD WORKING A TUBULAR BLANK. DURING THIS COLD WORKING PROCESS, DIES ARE UTILIZED TO REDUCE THE EXTERNAL DIAMETER OF A PORTION OF THE TUBULAR BLANK TO FORM AN INNER BEARING SUPPORT SECTION. AN OUTER BEARING SUPPORT SECTION IS FORMED BY FURTHER REDUCING THE EXTERNAL DIAMETER OF AN OUTER PORTION OF THE TUBULAR BLANK. THE INNER BEARING SUPPORT SECTION IS SUBJECTED TO RELATIVELY LARGE OPERATING STRESSES AND HAS A GREATER WALL THICKNESS THAN A BASE SECTION OF THE SPINDLE. A RADIALLY EXTENDING SHOULDER IS PROVIDED BETWEEN THE BASE SECTION AND INNER BEARING SUPPORT SECTION TO POSITION AN INNER BEARING ASSEMBLY RELATIVE TO THE SPINDLE. IN ONE EMBODIMENT OF THE INVENTION, A PAIR OF HOLLOW SPINDLES ARE INTEGRALLY FORMED WITH A COMMON AXLE.
Inventors
- 👤 Otto V Puzik
Bibliographic Details
Claims Analysis
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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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |