Adjustable stinger for use in laying pipeline in water covered areas
Abstract
Abstract A FLEXIBLE STINGER FOR USE IN LAYING PIPELINES FROM A FLOATING BARGE IN DEEP WATER. THE STINGER, WHICH SUPPORTS THE PIPE AS IT TRAILS OFF THE AFT END OF THE BARGE, IS COMPOSED OF A PLURALITY OF TROUGH OR PIPE-SUPPORT SECTIONS. THE TROUGH SECTIONS ARE LINKED TOGETHER BY FLEXIBLE OR PIVOTAL MEANS. A FLOAT FOR EACH SUCH TROUGH SECTION IS POSITIONED ON THE SURFACE DIRECTLY ABOVE THE SECTIONS. LINES RUN FROM WINCHES ON THE FLOAT TO EACH END OF EACH TROUGH SECTION. THE FLOATS ARE SUFFICIENTLY LARGE TO SUPPORT THE TROUGH SECTIONS AND ANY PIPE LAID THEREIN. THUS, BY ADJUSTING THE LENGTH OF THE LINES SUPPORTING THE TROUGHS THE STINGER, COMPOSED OF SUCH TROUGH SECTIONS, CAN BE MADE TO TAKE ANY SELECTED SHAPE OR CONTOUR.
Inventors
- 👤 Daniel Silverman
Bibliographic Details
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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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |