Method and apparatus for injecting relatively water-impervious dikes in relatively permeable earth formations,and forming earth-filled tanks and canals therewith
Abstract
Abstract THIS INVENTION IS A PROCESS OF AND APPARATUS FOR FORMING WALLS, DIKES OR SUBTERRANEAN TANKS OR CANALS IN LOOSE UNCONSOLIDATED SOIL BY INSERTING A PIPE OR PLURALITY OF PIPES INTO THE LOOSE SOIL AND THEN INJECTING A LIQUID COMPRISING MOLTEN ASPHALT OR ASPHALT-WATER EMULSION, OR OTHER LIQUID WHICH WILL HARDEN INTO A SOLID, THROUGH THE PIPE OR PIPES AS THEY ARE WITHDRAWN TO FORM WALLS OR DIKES IN THE SOIL. THESE WALLS OR DIKES CAN BE USED TO FORM SUBTERRANEAN TANKS OR CANALS. IF DESIRED, THE LIQUID CAN BE INJECTED FROM THE PIPES THROUGH CHECK VALVES PERMITTING THE LIQUID TO EMERGE BUT PREVENTING ITS RETURN TO THE INTERIOR OF THE PIPE. TWO FORMS OF APPARATUS ARE SHOWN, ONE INJECTING THROUGH VERTICAL OR SLANTED MOVING PIPES AND THE OTHER INJECTING THROUGH A ROTATING SEMI-CIRCULAR PIPE.
Inventors
- 👤 Dale F Levy
- 👤 Homer L Draper
Bibliographic Details
Claims Analysis
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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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |