Digging tool
US5427189A · kind A · utility
3Cited by
14References
10Claims
0Family size
Inventor
Key dates
| Filing date | Jan 27, 1994 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Jan 27, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B11/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
There is described a handheld and actuated tool for making small diameter holes in the earth, comprising an elongated earth penetrating tubular member for cutting a core of earth, and a handle portion connected to the tubular member for transmitting earth penetrating and torsional forces thereto and for pulling the tubular member from the earth to remove the core of earth therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.