Cutter head for trenchless boring machine
US5687807A · kind A · utility
20Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1995 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Apr 26, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutter for a trenchless boring apparatus includes a mount having a first end to be coupled to a free end of a drill pipe. A plurality of cutting teeth are secured to the mount with the teeth arranged in a helical pattern surrounding an axis of the mount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.