Fire and explosion detection and suppression
US4719973A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1986 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | Nov 25, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B17/12
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A fire and explosion detection and suppression system protects a hangar within which may be stored jet aircraft whose engines may be run up particularly in the re-heat mode. Two radiation sensors are mounted within the hangar and detect for at least predetermined amounts of radiation of predetermined and different types (e.g. one sensor may be a UV sensor and the other may be an IR sensor). When they simultaneously detect sufficient radiation, they operate an AND gate. This fires off suppressor units. To prevent false alarms due to radiation emitted by a running jet engine or a jet engine running in re-heat mode, such a running jet engine is sensed by a transducer responsive to the emitted acoustic or vibrational energy. This blocks the AND gate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.