Fluorescent lamp series system
US4513225A · kind A · utility
6Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1982 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Dec 13, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pair of 48-inch long preheat fluorescent lamps, each one and a half inches diameter and consuming less than 10 watts power per foot of length, are connected in series with each other and with a ballast, for operation from 50 or 60 hertz a-c line voltage in the range of 200 to 300 volts. A starter switch is connected in parallel across each lamp. The lamp designs are specified such that they will start and operate in the circuit from the a-c line voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.