Pilot light assembly
US5017833A · kind A · utility
4Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Dec 1, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The assembly comprises a light-emitting diode (28) and associated circuit components (38, R1-R4) mounted on a printed circuit board (26) all mounted within a housing (10) formed with securement means such as a screw thread (14) for mounting the assembly in a panel (18) with the led (28) visible from the opposite side of the panel. The circuit components form means for converting a mains voltage at input leads (30) to a low voltage for driving the led, preferably in the form of an i.c. rectifier bridge (38) and a plurality of volgage-dropping resistors (R1-R4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.