Patent ID: 6048805
Filing Date: 2000-04-11
Classification: A62C,B32B,E04B,F16L,Y10S,Y10T

Abstract:
A protection shield for protecting firefighters from fire, heat, water, impact, flashovers and backdrafts, comprising:a) a composite laminate structure having a plurality of layers for protection of firefighters exposed to high temperatures of 2200.degree. F. for 30 minutes in duration;b) said plurality of layers including an outer first layer, an inner second layer, an inner third layer, and an inner fourth layer;c) said outer first layer being a fiberglass textile having an intumescent coating for resistance to heat, water and impact; and said outer first layer contacting said inner second layer and having an inner surface wall in contact with said inner second layer;d) said inner second layer being a metal foil layer for reflecting heat and eliminating the convection transfer of heat; and said inner second layer contacting said inner third layer and having an inner surface wall in contact with said inner third layer;e) said inner third layer being a low conductivity refractory blanket for reducing the transmission of heat; and said inner third layer contacting said inner fourth layer and having an inner surface wall in contact with said inner fourth layer; wherein said low conductivity refractory blanket layer is selected from the group consisting of ceramic fiber blankets, silicon dioxide and calcium oxide fiber blankets, silicon dioxide and alumina fiber blankets, high silica fiber blankets, mineral wool blankets, rockwool blankets and equivalents thereof; andf) said inner fourth layer being a metal foil layer for reflecting heat and eliminating the convection transfer of heat; said inner fourth layer having an inner surface wall.