US3595278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer system for suboceanic oil production
Assignee: Boeing North American Inc
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Filing: 1969-09-11
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Granted: 1971-07-27
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Expires: 1989-09-11
Abstract
Abstract A transfer system for offshore petroleum production has a vertically movable riser extending from a collection tank on the ocean floor to a storage on the ocean surface. The riser is releasably attachable by a pivotal connection to the tanker during flowing operation and disconnectable during storms or otherwise violent sea states. In the disconnected mode, the riser remains submerged under the ocean surface to avoid excessive structural loading. The riser is articulated and moored by a system of weights and floats to maintain tension within acceptable stress limits throughout a wide range of changes in vertical and some horizontal movement of the tanker.
Inventors
- 👤 Herbert J Lilly Jr
- 👤 Chris D Dobler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:36
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/50; B63B21/507; Y; Y10; Y10T; Y10T137/00; Y10T137/402
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A method of transferring fluids from a collection point on the ocean floor to a tanker ship on the ocean surface, comprising the steps of: lowering a line through a center aperture through said ship, securing said line to a marker buoy on said ocean surface attached to a submerged transfer riser below said ocean surface, lifting said riser through said aperture, and connecting said riser to flow conduits on said tanker ship.
Claim 2
Independent Claim
73 words
A method of transferring fluids from a collection point on the ocean floor to a tanker ship on the ocean surface, comprising the steps of: lowering a line through a center aperture through said ship, securing said line to a marker buoy on said ocean surface attached to a submerged transfer riser below said ocean surface, lifting said riser through said aperture, and connecting said riser to flow conduits on said tanker ship.
References Cited (Backward Citations)
US3100006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |