Patent ID: 6074714
Filing Date: 2000-06-13
Classification: B32B,E04B,Y10S,Y10T

Abstract:
A fire and heat protection wrapping system for wrapping structural steel columns, steel beams, open web joists and other structural steel components used in the construction of an edifice, comprising:a) a concentric composite laminate structure having a plurality of concentric layers for the protection of the structural steel components which are exposed to high temperatures for up to five hours (5 hrs) in duration; said concentric composite laminate structure adapted for being attached to the structural steel component;b) said plurality of concentric layers including an outer first layer, an inner second layer, an inner third layer and an inner core fourth layer for wrapping the structural steel component;c) said outer first layer being a fiberglass textile having an intumescent coating for resistance to water, impact and heat; and said outer first layer surrounding 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 surrounding 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 surrounding said inner fourth layer and having an inner surface wall in contact with said inner fourth layer; andf) said inner core fourth layer being a metal foil layer for reflecting heat and eliminating the convection transfer of heat; and said inner fourth layer surrounds the core structural steel component and having an inner surface wall in contact with the structural steel component.