Method and apparatus for installment of underground utilities
US4674579A · kind A · utility
157Cited by
25References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1985 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Mar 7, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/13
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for installing underground utilities using an offset head fluid jet drilling and reaming apparatus. The drill is maneuverable and provides means for remote sensing of orientation and depth. Embodiments are illustrated with single and multiple jet cutting orifices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.