Cutter pick for mining using hydraulic stream
US4902073A · kind A · utility
31Cited by
4References
6Claims
0Family size
Inventors
Key dates
| Filing date | Oct 26, 1988 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Oct 26, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/1837
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutter pick for a mining machine has a lug carrying a cutting tip of hard, abrasion resistant material at its forward end. A passage extends through the lug with provision at its rearward end for connection to a source of high pressure liquid and with a nozzle at its leading end venting through the cutting tip. The intention is that high pressure liquid issueing from the nozzle will degrade the rock before it is attacked by the cutting tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.