Electrodeless lamp energized by microwave energy
US4894592A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | May 23, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus for inactivating the source of microwaves for an electrodeless lamp to prevent accidental release of microwaves into the environment as a result of failure to assemble the lamp with a conductive mesh. An electrodeless lamp which is provided with a gas manifold for directing a stream of cooling gas against a lamp envelope is provided with a gas leak passageway which is blocked when the conductive mesh assembly is in place. A pressure switch in fluid communication with the gas manifold is activated and prevents operation of the microwave source when pressure is reduced as a result of gas leaking through the gas leak passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.