Personal smoke and fire detector and warning unit
US4305069A · kind A · utility
20Cited by
11References
3Claims
0Family size
Inventors
Key dates
| Filing date | May 31, 1978 |
| Grant date | Dec 8, 1981 |
| Priority date | — |
| Expiry date | May 31, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S116/44
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
This invention is a combination smoke and fire detection and alarm system that comprises a battery powered personal unit and an AC/DC sustaining unit. It provides audible and visual alarms and an emergency light. The personal unit plugs into the sustaining unit for battery charge and provides an additional smoke and fire detector when used in this mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.