Device for making cast-in-situ piles using a continuous hollow auger
US5002435A · kind A · utility
14Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1990 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Feb 7, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/44
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A device for forming cast-in-situ piles in civil engineering work includes an auger which consists of a conventional lower part and an upper part comprising a hollow inner element and a removable outer element in the form of an auger having a longitudinal discontinuity which enables it to be fitted over the hollow inner element. The hollow inner element may extend, fixedly, as an elongation of the lower part of the auger or be mounted telescopically in the latter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.