Underwater storage structure and method of installation
Abstract
Abstract AN UNDERWATER STORAGE STRUCTURE, FOR FLUIDS SUCH AS OIL WHICH ARE IMMISCIBLE WITH AND OF LESSER SPECIFIC GRAVITY THAN WATER, IS CAPABLE OF BEING TOWED TO A SITE AND SUBMERSED TO THE FLOOR OF THE BODY OF WATER. THE STORAGE STRUCTURE IS MADE OF CONCRETE AND HAS A TRUNCATED PYRAMIDAL SHAPE WITH THE INTERIOR OF ITS LOWER PORTION IN COMMUNICATION WITH THE BODY OF WATER. A TENDER FRAME HAVING TANKS FOR BUOYANCY AND BALLASTING MAY BE USED TO INSTALL THE STORAGE STRUCTURE ON THE FLOOR OF THE BODY OF WATER. THE INSTALLATION PROCEDURE INCLUDES POSITIONING THE TENDER FRAME OVER THE STORAGE STRUCTURE, TYING THE TENDER FRAME TO THE STORAGE STRUCTURE, FLOODING THE STORAGE STRUCTURE, AND BALLASTING THE TENDER FRAME TO ACHIEVE NEGATIVE BUOYANCY AND TO POSITION THE STORAGE STRUCTURE IN THE FLOOR OF THE BODY OF WATER.
Inventors
- 👤 Lawrence A Starr
- 👤 Joseph W Roberts
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |