Smoke and carbon monoxide detector with clock
US5936532A · kind A · utility
8Cited by
9References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jun 16, 1998 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Jun 16, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B17/113
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A smoke and carbon monoxide detector for mounting upon a wall, having a housing having a front face. A clock having clock hands and clock indicia is present on the front face. The detector comprises a smoke detector element, a carbon monoxide detector element, and has an annunciator which sounds upon the presence of smoke or carbon monoxide. A deactivation button allows the annunciator to be temporarily deactivated in the event of a clearly false warning. The deactivation button also initiates a timing operation so that the annunciator is automatically re-enabled at the end of a predetermined time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.