US3587509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tail-shaft bearing assembly
Assignee: Turnbull Marine Design Co Ltd
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Filing: 1969-01-27
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Granted: 1971-06-28
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Expires: 1989-01-27
Abstract
Abstract A BEARING ASSEMBLY FOR THE PROPELLER SHAFT OF A SHIP IS PROVIDED IN A HOUSING REMOVABLY SECURED IN THE STERN OF THE SHIP AND A BEARING CAP FORMING PART OF THE BEARING ASSEMBLY IS REMOVABLE TO ALLOW INSPECTION OF THE SHAFT WITHOUT DISTURBANCE OF THE SHAFT AND WHILE THE SHIP IS AFLOAT. A SEAL IS PROVIDED BETWEEN A SEMIRADIAL FLANGE ON THE BEARING CAP AND THE HOUSING, AND A MECHANICAL SEAL BETWEEN THE HOUSING AND THE PROPELLER EXTENDS AROUND THE PART OF THE SHAFT SUPPORTED BY THE BEARING ASSEMBLY. HYDRAULIC MEANS ARE PROVIDED FOR SECURING AND FOR REMOVING THE BEARING CAP.
Inventors
- 👤 John A Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:47
CPC Classifications
B; B63; B63H; B63H23/00; B63H23/32; B63H23/321; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/08; F16C2226/00; F16C2226/50; F16C2226/60; F16C2326/00; F16C2326/30
Claims Analysis
Total Claims: 0
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References 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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |