Treatment of material by ultra-violet irradiation
US3987306A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1975 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Nov 14, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2893/0088
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of producing U.V. radiation by effecting an electrical discharge such that at least a part of the discharge path is submerged in water. An apparatus for performing the above method comprises two electrodes spaced apart to form a discharge region, a discharge chamber containing the discharge region, means arranged to apply a high voltage across the electrodes, and means arranged to supply water to the discharge region such that at least a part of the electrical discharge is submerged in the water, at least a portion of the discharge chamber being transparent to U.V. radiation. Also, a method of treating a material comprising producing U.V. radiation as described above in a discharge chamber at least a portion of which is U.V. transparent, passing the material through a treatment chamber adjacent the transparent portion of the discharge chamber; and an apparatus for performing the method of treating a material. In some described embodiments the position of an electrode is adjusted in dependence upon the electrical characteristics of the discharge such as to maintain predetermined conditions. In one embodiment an electrode is mounted in the bottom of the discharge chamber whi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.