Universally accessible smoke detector
US5594422A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1994 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | May 19, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/145
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A wall-mounted stand-alone smoke detector has an elongated housing. The housing has two ends. One end forms a base. The other end houses a sensor head remote from the base. A rigid member supports the sensor and connects the sensor to the base. The sensor head has a smoke sensor, a signal conditioner and a preamplifier for respectively detecting, conditioning, amplifying and providing signals from the sensor to a signal processor in the base. A positioning probe is attached to the sensor head end of the housing for positioning the sensor spaced from a ceiling of a room. The end housing the sensor may be angled for spacing the sensor from a wall on which the detector is mounted. All mounting, display control interaction and routine maintenance can be performed within easy reach, without climbing. The base has a power supply. A signal processor in the base is connected to the sensor head. Circuitry analyzes and processes signals, recognizing an alarm state and activating audible and visual alarms. Displays on the base which are at user eye level provide output of the signal processor. Buttons are provided on the base to test the detector and to cancel alarms. The buttons have distinc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.