US3620181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent ship mooring system
Assignee: Boeing North American Inc
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Filing: 1969-07-02
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Granted: 1971-11-16
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Expires: 1989-07-02
Abstract
Abstract A MOORING OR ANCHORING SYSTEM FOR PERMANENTLY LOCATING A SHIP IN A SUBSTANTIALLY FIXED POSITION IN DEEP WATER IS DESCRIBED. A MOORING SWIVEL EXTENDING THROUGH THE HULL OF THE SHIP, NEAR THE BOW, IS MOORED TO THE BOTTOM BY A PLURALITY OF RADIALLY EXTENDING ANCHOR CHAINS. INTERMEDIATE BETWEEN THE ENDS OF THE ANCHOR CHAINS AND THE MOORING SWIVEL, A HEAVY WEIGHT IS PROVIDED ON EACH CHAIN SO THAT THE SHIP IS HELD TO LIMITED EXCURSIONS IN NORMAL SEAS BUT IS PERMITTED GREATER EXCURSIONS IN HEAVY SEAS. A WINCH AND CHAIN STOPS ARE PROVIDED FOR PRE-TENSIONING THE ANCHOR CHAINS AND FIXING THEM RELATIVE TO THE MOORING SWIVEL.
Inventors
- 👤 Bruno R Naczkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:35
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/50; B63B21/507
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |