Patent US3606853A successfully refreshed from Google Patents.
US3606853A
Expired / Lapsed
US
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System for reducing dynamic tension in anchor line
Assignee: BP America Production Co
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Filing: 1969-04-01
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Granted: 1971-09-21
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Expires: 1989-04-01
Abstract
Abstract THIS IS A SYSTEM FOR REDUCING THE DYNAMIC TENSION IN AN ANCHOR LINE CONNECTING A FLOATING VESSEL TO AN ANCHOR. A WEIGHT CLUMP IS CONNECTED TO THE ANCHOR LINE. THE CLUMP MUST BE (1) WITHIN CRITICAL WEIGHT LIMITS AND (2) LOCATED PROPERLY, OTHERWISE DYNAMIC TENSION CAN BE INCREASED INSTEAD OF DECREASED. THE WEIGHT OF THE CLUMP SHOULD BE BETWEEN ABOUT 1 1/2 AND ABOUT THREE TIMES THE WEIGHT PER UNIT LENGTH OF ANCHOR LINE TIMES THE DEPTH OF THE BODY OF WATER. THE WEIGHT CLUMP SHOULD BE LOCATED FROM THE SHIP A DISTANCE OF ABOUT AT LEAST 1/3 (ABOUT NOT OVER ABOUT 1/2) OF THE FREE-HANGING LENGTH OF THE ANCHOR LINE.
Inventors
- 👤 Feng H Hsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:26
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/20
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |