US 6,048,805 AGranted

Fire, heat and backdraft protection shield for firefighters

AssigneeNo Fire Technologies, Inc.

InventorSamuel Gottfried

Life of this patent

Estimating the term…

Loading patent…

Abstract

A fire, heat and backdraft protection system is described for protecting firefighters in all types of fires. The protection system includes a composite laminate structure having a plurality of layers for the protection of firefighters who are exposed to high temperatures of 2200.degree. F. for 30 minutes in duration. The plurality of layers includes an outer first layer, an inner second layer and an inner third layer. The outer first layer is a fiberglass textile having an intumescent coating resistant to heat, water and impact. The inner second layer is a metal foil layer for reflecting heat and eliminates the convection transfer of heat. The inner third layer is a low conductivity refractory blanket for reducing the transmission of heat. The inner fourth layer is a metal foil layer for reflecting heat and eliminates the convection transfer of heat.

Claims57

Dependent claims

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;
and
f) 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.

9 more elements

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 which are 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, and an inner third 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;
and
e) said inner third layer being a low conductivity refractory blanket for reducing the transmission of heat;
and said inner third layer having an inner surface wall;
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.

8 more elements

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 which are exposed to high temperatures of 2200.degree. F. for 30 minutes in duration;
b) said plurality of layers including an outer first layer and an inner second 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;
wherein said intumescent coating includes mechanical enhancer components for physical impact resistance and adhesion enhancement;
water resistance agents and efflorescence reduction agents;
and elasticity agents to increase resistance to cracking and shrinking, and to improve ease of spraying and coating;
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 having an inner surface wall;
e) a frame member;
and means for connecting said composite laminate structure to said frame member;
and
f) said frame member includes one or more handle members for holding said protection shield by a firefighter when in operational use.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/167,447Filed 6 Oct 1998 · continuation in part
Priority: 23 May 1997
Granted: 11 Apr 2000
Term ends: Not estimatedThe source records don’t support an estimate.

Classification28 codes

B32B 15/14
Layered products comprising a layer of metal: next to a fibrous or filamentary layer
A62C 8/08
Hand tools or accessories specially adapted for fire-fighting, e.g. tool boxes: shields
B32B 1/08
Layered products having a non-planar shape: tubular products
B32B 15/08
Comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin