Water spray control system for underground mining machine
US5172767A · kind A · utility
4Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1991 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Jun 21, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C35/64
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A fire suppression water spray array for an underground mining machine includes an accumulator, and a normally open electrically operated valve interconnected in the machine hydraulic control system for operating a hydraulically operated water spray control valve to initiate the water spray in the event of interruption of electrical power to the machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.