Point-of-use water treatment system
US6491868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Oct 4, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to a point-of-use water treatment system (WTS) unit (20) for filtering and treating contaminants in water. WTS unit (20) may include a first primary coil (74) located in a base unit (22) which inductively power a secondary treatment device such as a UV lamp assembly (24). Secondary treatment device (24) may be a lamp assembly (24) which includes a condensing element (84) to condense mercury in a bulb in the arc path between filaments (444). Maintaining the condensed mercury between filaments (444) serves to reduce the time needed for lamp assembly (24) to produce light emissions of a predetermined intensity upon subsequent energization as compared to allowing the mercury to condense outside the arc path. A reflector assembly (402) may be used in lamp assembly (24) to focus radiation upon conduits (80) carrying water therethrough and away from returning to a bulb assembly (82) from which the radiation was originally emitted. An outer enclosure or housing (400) surrounds the bulb and reflector assemblies (82, 402) such that lamp assembly (24) becomes a generally closed pressure vessel. Also, a light pipe (250) impregnated with a florescent dye may be…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.