US3274782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dewatering clayey and silty soil
Assignee: Individual
•
Filing: 1963-07-05
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Granted: 1966-09-27
•
Expires: 1983-07-05
Abstract
No abstract record available.
Inventors
- 👤 Richard E Landau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:34
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD FOR LOCALLY CONTROLLING THE FLUID LEVEL IN CLAYEY OF SILTY SOILS COMPRISING (1) FORMING A CAVITY IN THE SOIL BY (A) PENETRATING INTO THE SOIL TO THE DESIRED DEPTH BY HELICALLY CUTTING WITH A FLIGHT AUGER INTO THE EARTH FORMATION THEREBY TO FORM A CORE OF EARTH, (B) REMOVING THE CORE FROM THE SOIL BY WITHDRAWING THE AUGER THEREBY TO FORM A CAVITY, (C) DISPOSING A WELL-POINT AT THE DESIRED DEPTH IN THE CAVITY, (2) ACTUATING THE WELL-POINT AS A CONDUIT FOR FLUID FLOW, (3) CONTROLLING THE FLUID FLOW IN THE WELL-POINT TO CONTROL LOCALLY THE FLUID LEVEL IN THE SOIL.
Claim 2
Independent Claim
103 words
A METHOD FOR LOCALLY CONTROLLING THE FLUID LEVEL IN CLAYEY OF SILTY SOILS COMPRISING (1) FORMING A CAVITY IN THE SOIL BY (A) PENETRATING INTO THE SOIL TO THE DESIRED DEPTH BY HELICALLY CUTTING WITH A FLIGHT AUGER INTO THE EARTH FORMATION THEREBY TO FORM A CORE OF EARTH, (B) REMOVING THE CORE FROM THE SOIL BY WITHDRAWING THE AUGER THEREBY TO FORM A CAVITY, (C) DISPOSING A WELL-POINT AT THE DESIRED DEPTH IN THE CAVITY, (2) ACTUATING THE WELL-POINT AS A CONDUIT FOR FLUID FLOW, (3) CONTROLLING THE FLUID FLOW IN THE WELL-POINT TO CONTROL LOCALLY THE FLUID LEVEL IN THE SOIL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |