Marine bearing
Abstract
Abstract A MARINE BEARING PROVIDED WITH A PLURALITY OF STAVES FORMED ENTIRELY OF ELASTOMERIC MATERIAL. THE STAVES ARE ASSEMBLED IN A HOUSING WITH CLEARANCE AND ARE THEN SUBJECTED TO RELEASABLY COMPRESSIVE STRESS TO PRODUCE LOCKING PRESSURE BETWEEN THE EXTERIOR OF EACH STAVE AND THE INTERIOR OF THE HOUSING. THE COMPRESSIVE STRESS MAY BE APPLIED RADIALLY OR AXIALLY. THE STAVE MAY BE FORMED OF CONCENTRIC LAYERS OF DIFFERENT HARDNESS OR COMPOUNDING. CLOSE TOLERANCES AND SMALL CLEARANCES MAY BE PROVIDED BECAUSE THE BEARING MAY BE ASSEMBLED AND DISSASSEMBLED IN PLACE AROUND THE SHAFT. CRITICAL RESONANT VIBRATION WITHIN THE NORMAL SHAFT SPEED OPERATING RANGE IS MINIMIZED OR ELIMINATED BY PROPERLY SELECTING THE AMOUNT OF CLEARANCE. THE AMOUNT OF PRESTRESSING, THE RELATIVE COMPOSITION, AND THE RELATIVE HARDNESS OF THE ELASTOMERIC MATERIAL.
Inventors
- 👤 James Glenn Satterthwaite
- 👤 James B Macy Jr
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |