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US 4,794,032 AGranted
Floor structure
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsHideichi Fujii, Kiyomori Nakano
Life of this patent
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Abstract
A floor structure comprising an upper layer containing a hydroxide, a middle layer for providing the structural strength and a lower layer covering the lower surface of the structure, in which at least the middle layer and the lower layer are composed of flame-retardant material and a layer of heat insulating material is formed therebetween. The floor structure is excellent in fire-resistance and heat-resistance, as well as facilitating the mounting of equipment or the likes below the floor.
Claims13
A floor structure, comprising:
- a self-supporting structural member, for providing structural strength to said floor structure, fabricated from a flame-retardant material and having an upper and lower surface;
- an upper layer, secured to said upper surface of said self-supporting structural member, selected from materials comprising either a hydroxide, a hydrated salt, or an aquo-complex salt, which are thermally decomposable so as to release water under heated conditions;
- a layer of heat insulating material secured to said lower surface of said self-supporting structural member;
- and
- a lower layer secured to an undersurface of said heat insulating layer and formed of flame-retardant material.
2 more elements
Dependencies are inferred from the claim text.