Encapsulated explosion-proof pilot light
US5821695A · kind A · utility
223Cited by
7References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Aug 6, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A housing having a cavity is in sealing engagement with a glass jewel which also contains a cavity; these two cavities cooperate to form a closed chamber. A frame supporting terminal plates is mounted within the chamber. The frame also mounts a circuit board which in turn mounts a plurality of LEDs. An encapsulating material fills all of the spaces within the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.