Self-lubricated shaft bearing for linear and rotary motion
Abstract
Abstract A BALL BEARING ASSEMBLY FOR LINEAR AND ROTATABLE MOTION HAVING ONE OR MORE FLAT ANNULAR BEARING CAGES HAVING A CENTRAL PASSAGE TO RECEIVE A SHAFT. EACH BEARING CAGE HAS A PLURALITY OF CIRCUMFERENTIALLY SPACED CYLINDRICAL CAVITIES EXTENDING AXIALLY OF THE RING FROM OPPOSITE ENDS AND EACH CAVITY HAS A LATERAL OPENING INTO THE CENTRAL PASSAGE. A SPHERICAL BALL IS ROTATABLY DISPOSED IN EACH OF THE CAVITIES AND PROJECTS LATERALLY THROUGH THE OPENING INTO THE PASSAGE. THE CAVITIES ARE AXIALLY LONGER THAN THE DIAMETERS OF BALLS TO PERMIT THE BALLS TO MOVE THEREIN AXIALLY OF THE RING. SPACER RINGS AT OPPOSITE ENDS OF THE ASSEMBLY HOLD THE BALLS IN THE CAVITIES. THE BEARING AND SPACER RINGS AND BALLS MAY BE MADE OF SMOOTH, SELF LUBRICATING FIBEROUS POLYMER MATERIAL TO MINIMIZE FRICTION.
Inventors
- 👤 Max Norman Schweizer
- 👤 Arthur Stone Moran
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |