Apparatus and method for selected path drilling
US4453603A · kind A · utility
36Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1980 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Dec 9, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/046
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling rig for drilling a selected underground path is provided. The drilling rig includes a pipe handling apparatus having a hydraulic cylinder and ram mounted on an inclined ramp over a substructure wherein rooms for housing supplies and control equipment are provided. Methods for preparing an arcuate path opening, or for placing a pipeline and laying a cable wherein all pulling and pushing of pipe is accomplished by the hydraulic pipe handling apparatus are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.