US3336760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction of support columns in soil
Assignee: Individual
•
Filing: 1963-11-21
•
Granted: 1967-08-22
•
Expires: 1983-11-21
Abstract
No abstract record available.
Inventors
- 👤 Richard E Landau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:43
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/34; E02D5/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE METHOD OF FORMING AN ELONGATED PEDESTAL SUPPORT COLUMN IN SOIL, COMPRISING PENETRATING SAID SOIL TO THE DESIRED SOIL DEPTH BY HELICALLY CUTTING THEREINTO WITH A FLIGHT ANGER, PULLING THE AUGER FROM THE SOIL TO A SELECTED HEIGHT, THEREBY FORMING A FIRST CAVITY IN SAID SOIL DEFINED SUBSTANTIALLY BY THE OUTER DIAMETER OF THE FLIGHTS OF SAID AUGER, REMOVING THE AUGER COMPLETELY FROM SAID SOIL BY REVERSING THE DIRECTION OF HELICAL CUTTING OF SAID AUGER TO FORM A SECOND CAVITY IN SAID SOIL COMMUNICATION WITH SAID FIRST CAVITY AND DEFINED SUBSTANTIALLY BY THE OUTER DIAMETER OF THE AUGER SHAFT, AND BACKFILLLING SAID CAVITIES WITH COLUMNAR MATERIAL TO FORM SAID PEDESTAL SUPPORT IN SAID SOIL, SAID SOIL HAVING THE CAVITY TO SUBSTANTIALLY SUSTAIN ITSELF AGAINST COLLAPSE PRIOR TO THE COMPLETION OF THE BACKFILL OPERATION.
Claim 2
Independent Claim
133 words
THE METHOD OF FORMING AN ELONGATED PEDESTAL SUPPORT COLUMN IN SOIL, COMPRISING PENETRATING SAID SOIL TO THE DESIRED SOIL DEPTH BY HELICALLY CUTTING THEREINTO WITH A FLIGHT ANGER, PULLING THE AUGER FROM THE SOIL TO A SELECTED HEIGHT, THEREBY FORMING A FIRST CAVITY IN SAID SOIL DEFINED SUBSTANTIALLY BY THE OUTER DIAMETER OF THE FLIGHTS OF SAID AUGER, REMOVING THE AUGER COMPLETELY FROM SAID SOIL BY REVERSING THE DIRECTION OF HELICAL CUTTING OF SAID AUGER TO FORM A SECOND CAVITY IN SAID SOIL COMMUNICATION WITH SAID FIRST CAVITY AND DEFINED SUBSTANTIALLY BY THE OUTER DIAMETER OF THE AUGER SHAFT, AND BACKFILLLING SAID CAVITIES WITH COLUMNAR MATERIAL TO FORM SAID PEDESTAL SUPPORT IN SAID SOIL, SAID SOIL HAVING THE CAVITY TO SUBSTANTIALLY SUSTAIN ITSELF AGAINST COLLAPSE PRIOR TO THE COMPLETION OF THE BACKFILL OPERATION.
References Cited (Backward Citations)
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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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |