Water treating device for attachment directly to a hydrant outlet
US6227463A · kind A · utility
18Cited by
16References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Sep 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C37/50
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Tap water supply systems are flushed by opening fire hydrants and running potable water through the fire hydrants for a period of time. Since potable water usually contains chlorine, it is necessary to remove the chlorine before the water enters rivers, streams and bays in order to protect aquatic life. This is accomplished by passing the water through a diffuser attached to the fire hydrant, which diffuser contains a mesh bag with a sodium sulfite tablet therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.