Light emitting smoke detector
US4227191A · kind A · utility
14Cited by
7References
5Claims
0Family size
Inventor
Key dates
| Filing date | Feb 21, 1978 |
| Grant date | Oct 7, 1980 |
| Priority date | — |
| Expiry date | Feb 21, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B17/113
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A smoke detector is provided having a smoke detection circuit coupled with an audible alarm and a high intensity light source. The high intensity light source is powered separately from the smoke detection and audible alarm system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.