US3115755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of anchoring offshore structures
Assignee: Shell USA Inc
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Filing: 1960-09-26
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Granted: 1963-12-31
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Expires: 1980-09-26
Abstract
No abstract record available.
Inventors
- 👤 Christian H Siebenhausen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:49
CPC Classifications
E; E02; E02B; E02B17/00; E21; E21B; E21B7/00; E21B7/12; E21B7/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
213 words
A METHOD OF ANCHORING AN OFFSHORE STRUCTURE POSITIONED ON THE FLOOR OF A BODY OF WATER, SAID STRUCTURE COMPRISING A PLURALITY OF VERTICAL SUPPORT MEMBERS CONNECTED TOGETHER TO OUTLINE A GEOMETRICAL FIGURE HAVING A CLOSED PERIMETER, SAID SUPPORT MEMBERS TERMINATING IN A WEIGHT-BEARING FOOTING AT THEIR LOWER ENDS WITH AT LAST ONE GUIDE IN SAID FOOTING ADJACENT EACH SUPPORT MEMBER, SAID METHOD COMPRISING THE STEPS OF FIXEDLY SECURING A BIT TO THE BOTTOM OF A TUBULAR PILE, GUIDING SAID PILE DOWN THROUGH THE WATER OUTSIDE ANY VERTICAL SUPPORT MEMBER AND INTO SAID GUIDE IN SAID FOOTING, INSTALLING A DRIVE SHAFT IN THE PILE TO ENGAGE THE ROTATABLE BIT AT THE BOTTOM THEREOF, LOWERING THE BIT AND LOWER END OF THE PILE THROUGH THE GUIDE IN THE FOOTING ADJACENT THE SUPPORT MEMBER, ROTATING THE DRIVE SHAFT TO DRILL A HOLE SLIGHTLY LARGER THAN THE DIAMETER OF THE PILE AND DRILL THE BIT AND PILE INTO THE CONSOLIDATED FORMATION BENEATH THE FOOTING, CONTINUING DRILLING UNTIL THE TOP OF THE PILE IS BELOW THE WATER LEVEL AND AT A PREDETERMINED LEVEL RELATIVE TO THE TOP OF THE FOOTING, DISCONTINUING DRILLING, CEMENTING THE PILE AND BIT TO THE FORMATION, WITHDRAWING THE DRIVE SHAFT FROM SAID PILE, AND CEMENTING THE UPPER END OF THE PILE TO THE FOOTING.
Claim 2
Independent Claim
213 words
A METHOD OF ANCHORING AN OFFSHORE STRUCTURE POSITIONED ON THE FLOOR OF A BODY OF WATER, SAID STRUCTURE COMPRISING A PLURALITY OF VERTICAL SUPPORT MEMBERS CONNECTED TOGETHER TO OUTLINE A GEOMETRICAL FIGURE HAVING A CLOSED PERIMETER, SAID SUPPORT MEMBERS TERMINATING IN A WEIGHT-BEARING FOOTING AT THEIR LOWER ENDS WITH AT LAST ONE GUIDE IN SAID FOOTING ADJACENT EACH SUPPORT MEMBER, SAID METHOD COMPRISING THE STEPS OF FIXEDLY SECURING A BIT TO THE BOTTOM OF A TUBULAR PILE, GUIDING SAID PILE DOWN THROUGH THE WATER OUTSIDE ANY VERTICAL SUPPORT MEMBER AND INTO SAID GUIDE IN SAID FOOTING, INSTALLING A DRIVE SHAFT IN THE PILE TO ENGAGE THE ROTATABLE BIT AT THE BOTTOM THEREOF, LOWERING THE BIT AND LOWER END OF THE PILE THROUGH THE GUIDE IN THE FOOTING ADJACENT THE SUPPORT MEMBER, ROTATING THE DRIVE SHAFT TO DRILL A HOLE SLIGHTLY LARGER THAN THE DIAMETER OF THE PILE AND DRILL THE BIT AND PILE INTO THE CONSOLIDATED FORMATION BENEATH THE FOOTING, CONTINUING DRILLING UNTIL THE TOP OF THE PILE IS BELOW THE WATER LEVEL AND AT A PREDETERMINED LEVEL RELATIVE TO THE TOP OF THE FOOTING, DISCONTINUING DRILLING, CEMENTING THE PILE AND BIT TO THE FORMATION, WITHDRAWING THE DRIVE SHAFT FROM SAID PILE, AND CEMENTING THE UPPER END OF THE PILE TO THE FOOTING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |