US3563037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Minimizing scouring action in water flow channels
Assignee: Individual
•
Filing: 1968-12-17
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Granted: 1971-02-16
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Expires: 1988-12-17
Abstract
Abstract A MEANS FOR MINIMISING THE SCOURING EFFECT OF WATER FLOW ON THE BEDS OF RIVERS, ESTUARIES AND THE SEA BED COMPRISING A TUBULAR ELEMENT COMPOSED OF A MESHED UPPER PANEL THROUGH WHICH BALLAST MATERIAL CAN PASS TO THE RIOR OF THE ELEMENT. IF DESIRED, THE ELEMENT MAY HAVE A MESHED LOWER PANEL THROUGH WHICH SAND OR OTHER BED MATERIAL MAY PASS BUT THROUGH WHICH THE BALLAST IS UNABLE TO ESCAPE AND A PLURALITY OF ELEMENTS MAY BE JOINED TOGETHER IN PARALLEL RELATIONSHIP TO FORM A UNIT. THE OR EACH TUBULAR ELEMENT MAY BE PROVIDED INTERNALLY WITH A PLURALITY OF SPACED APART DISTENDING MEMBERS.
Inventors
- 👤 Albert James Stammers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:47
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/122; E02B3/127; E02B3/126; F; F16; F16L; F16L1/00; F16L1/12; F16L1/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |