Foam extinguishing system
US4662454A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1985 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Jul 23, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C5/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A foam extinguishing system in which a foam generating net is provided at the front of a chamber, and foam nozzles and a gas discharge nozzle are provided at the rear of the chamber is disclosed wherein in order to lengthen the flying distance and suspension time of the non-combustible gas solution discharged from the gas discharge nozzle a deflector is provided in front of the nozzle to reflect and disperse a non-combustible gas solution discharged from the nozzle rearwards or sideways from the rear. The gas discharge nozzle provided with the deflector may be also located in such a position that the non-flammable gas solution reflected and dispersed by the deflector does not disturb the discharge pattern of a foam solution from the foam nozzles and that the non-combustible gas is pushed forward by an air flow generated in the air by a negative pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.