Patent US3191201A successfully refreshed from Google Patents.
US3191201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mooring system
Assignee: SONAT OFFSHORE DRILLING Inc
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Filing: 1962-04-02
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Granted: 1965-06-29
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Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 George T Richardson
- 👤 Joseph A Scruggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:39
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/50; B63B21/507
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A FLOATABLE VESSEL FROM WHICH DRILLING OPERATIONS ON A SUBMERGED BOTTOM MAY BE CONDUCTED COMPRISING: AN ELONGATED HULL HAVING A STREAMLINED BOW TO REDUCE RESISTANCE TO MOVEMENT OF SAID HULL THROUGH THE WATER; A WELL EXTENDING VERTICALLY THROUGH SAID HULL; A VERTICAL HOLLOW CYLINDER SUPPORTED BY SAID VESSEL MOUNTED IN SAID WELL FOR ROTATION ABOUT A VERTICAL AXIS RELATIVE TO SAID HULL; AND MEANS SECURED TO SAID CYLINDER FOR ATTACHING AT LEAST ONE ANCHOR LINE THERETO, WHEREBY WHEN SAID CYLINDER IS ANCHORED TO A SUBMERGED BOTTOM SAID HULL MAY BE ROTATED ABOUT SAID CYLINDER AND ORIENTED IN A DIRECTION TO MINIMIZE WIND AND WATER FORCES ON SAID HULL AND WHEREBY MARINE-BOTTOM DRILLING OPERATIONS CAN BE CARRIED OUT FROM SAID VESSEL BY OPERATING DOWNWARDLY THROUGH SAID CYLINDER.
Claim 2
Dependent Claim
126 words
A FLOATABLE VESSEL FROM WHICH DRILLING OPERATIONS ON A SUBMERGED BOTTOM MAY BE CONDUCTED COMPRISING: AN ELONGATED HULL HAVING A STREAMLINED BOW TO REDUCE RESISTANCE TO MOVEMENT OF SAID HULL THROUGH THE WATER; A WELL EXTENDING VERTICALLY THROUGH SAID HULL; A VERTICAL HOLLOW CYLINDER SUPPORTED BY SAID VESSEL MOUNTED IN SAID WELL FOR ROTATION ABOUT A VERTICAL AXIS RELATIVE TO SAID HULL; AND MEANS SECURED TO SAID CYLINDER FOR ATTACHING AT LEAST ONE ANCHOR LINE THERETO, WHEREBY WHEN SAID CYLINDER IS ANCHORED TO A SUBMERGED BOTTOM SAID HULL MAY BE ROTATED ABOUT SAID CYLINDER AND ORIENTED IN A DIRECTION TO MINIMIZE WIND AND WATER FORCES ON SAID HULL AND WHEREBY MARINE-BOTTOM DRILLING OPERATIONS CAN BE CARRIED OUT FROM SAID VESSEL BY OPERATING DOWNWARDLY THROUGH SAID CYLINDER.
References Cited (Backward Citations)
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US2837049A
Cited
US2699321A
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |