Split tube soil sampling system
US9551188B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Mar 4, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A split tube soil sampling system includes a sample tube having an upper end and a lower end, a drive head attached to the upper end of the sample tube, and a cutting shoe attached to the lower end of the sample tube. The sample tube has a first generally semi cylindrical tube segment comprising a first pair of longitudinal edges, and a second generally semi cylindrical tube segment comprising a second pair of longitudinal edges. The first and second tube segments are configured to be joined together along their respective longitudinal edges to form a cylinder having a through bore. The longitudinal edges of the tube segments have interlocking fingers that are mated together to hold the first and second tube segments together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.