Fire alarm heat detector
US5450066A · kind A · utility
18Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1993 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Sep 7, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B17/06
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electronic heat detector provides a fire alarm with a rapid rate of rise of temperature. The rate of rise indication is obtained from a comparison of outputs from a first temperature sensor which responds rapidly to environmental temperature, referenced to a second temperature sensor which has an intermediate response between that of the first sensor and an electronics board. The second sensor is positioned within a protuberance from the heat detector housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.