Patent ID: 7124833
Filing Date: 2006-10-24
Classification: A62C

Abstract:
1. A transportable system for delivering to an enclosed fire zone a breathable, fire extinguishing gas mixture, which gas mixture comprises a normally gaseous inert material, carbon dioxide, and oxygen and which system comprises a first source of the normally gaseous inert material, a second source of the carbon dioxide, a third source of an oxygen containing gas, means for mixing the inert material, the carbon dioxide and the oxygen containing gas, and a delivery means for delivering the inert material, the carbon dioxide and the oxygen containing gas to the fire zone, the normally gaseous inert material, the carbon dioxide and the oxygen containing gas being delivered to the fire zone in the gaseous proportions of from about 81 to about 88% by volume normally gaseous inert material, of from about 2 to about 5% by volume carbon dioxide and of from about 10 to about 15% by volume of oxygen.