Floating foam for fire fighting
US8460570B2 · kind B2 · utility
1Cited by
18References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2006 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Aug 6, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D1/0071
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Foams and methods of using foams for fighting fires in confined areas (i.e., mine shafts) are provided. In one embodiment, a foam for extinguishing a fire is provided. The foam includes a surfactant; a non-flammable liquid; and an inert gas having a density substantially less than air. Preferably, the density of the foam is substantially less than the density of air. The light foam will allow a basic form of directional control of the foam because the light foam will float towards the ceiling of a cavern or mine shaft. This offers fire fighters several options in extinguishing an underground fire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.