US3380256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater drilling installation and method of construction
Assignee: REBIKOFF OCEANICS Inc
•
Filing: 1966-01-25
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Granted: 1968-04-30
•
Expires: 1986-01-25
Abstract
No abstract record available.
Inventors
- 👤 Rebikoff Dimitri Issaiewitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:54
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/02; E02B17/027; E21; E21B; E21B15/00; E21B15/02; E21B7/00; E21B7/12; E21B7/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A METHOD OF INSTALLING A CAISSON ON THE BOTTOM OF A BODY OF WATER WHICH COMPRISES PROVIDING A TUBULAR CAISSON HAVING ONE END OPEN FOR BEING DRIVEN INTO THE BOTTOM OF A WATER BODY AND HAVING A BULKHEAD EXTENDING THEREACROSS IN SPACED RELATION TO SAID ONE END FOR FORMING A WORKING CHAMBER THEREBETWEEN AND A SHAFT CONNECTION TO SAID BULKHEAD FOR ESTABLISHING COMMUNICATION BETWEEN SAID CHAMBER AND THE UPPER SURFACE OF THE WATER BODY, IMMERSING SAID CAISSON IN THE WATER BODY WITH SAID ONE END SEATED ON THE BOTTOM OF THE WATER BODY AND SAID BULKHEAD SUBMERGED IN THE WATER BODY, ESTABLISHING COMMUNICATION BETWEEN SAID CHAMBER AND THE UPPER SURFACE OF THE WATER BODY BY A SHAFT EXTENDING FROM SAID SHAFT CONNECTION, AND REMOVING WATER FROM SAID CHAMBER TO CAUSE THE WATER PRESSURE ABOVE SAID BULKHEAD TO DRIVE THE CAISSON INTO THE BOTTOM OF THE WATER BODY.
Claim 2
Independent Claim
147 words
A METHOD OF INSTALLING A CAISSON ON THE BOTTOM OF A BODY OF WATER WHICH COMPRISES PROVIDING A TUBULAR CAISSON HAVING ONE END OPEN FOR BEING DRIVEN INTO THE BOTTOM OF A WATER BODY AND HAVING A BULKHEAD EXTENDING THEREACROSS IN SPACED RELATION TO SAID ONE END FOR FORMING A WORKING CHAMBER THEREBETWEEN AND A SHAFT CONNECTION TO SAID BULKHEAD FOR ESTABLISHING COMMUNICATION BETWEEN SAID CHAMBER AND THE UPPER SURFACE OF THE WATER BODY, IMMERSING SAID CAISSON IN THE WATER BODY WITH SAID ONE END SEATED ON THE BOTTOM OF THE WATER BODY AND SAID BULKHEAD SUBMERGED IN THE WATER BODY, ESTABLISHING COMMUNICATION BETWEEN SAID CHAMBER AND THE UPPER SURFACE OF THE WATER BODY BY A SHAFT EXTENDING FROM SAID SHAFT CONNECTION, AND REMOVING WATER FROM SAID CHAMBER TO CAUSE THE WATER PRESSURE ABOVE SAID BULKHEAD TO DRIVE THE CAISSON INTO THE BOTTOM OF THE WATER BODY.
References Cited (Backward Citations)
US485983A
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US1465664A
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US2187871A
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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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |