High pressure water assisted mining and tunnelling machine
US5114213A · kind A · utility
10Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1991 |
| Grant date | May 19, 1992 |
| Priority date | — |
| Expiry date | Feb 22, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/23
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An accessory for a mining or tunnelling machine comprising a cutting drum is disclosed. The accessory comprises a radial piston pump mountable in the cutting drum, the pump comprising a plurality of piston and cylinder assemblies adapted to supply water under pressure to a nozzle or nozzles mounted in the periphery of the drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.