Dual stage fire extinguisher
US6082464A · kind A · utility
31Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1998 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Mar 4, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A fire is inerted, extinguished and suppressed, by a dual stage fire extinguisher. In a first stage, a sufficient volume percentage of an inerting agent is delivered to extinguish the fire. Once the fire is extinguished, in the second stage, a different amount of inerting agent is delivered to the fire to suppress it and prevent re-ignition. Since suppression typically requires less of the inerting agent than extinguishing, a reduction in the weight of the inerting media is achieved with the dual stage process making the system particularly amenable to aircraft applications such as in an engine nacelle or cargo dry bay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.