Patent ID: 8900683

Claim:
A rapid access fire protection panel system for applications requiring fire protection against severe fire situations, said system comprising: A) A plurality of standard sized panels adapted for rapid installation and rapid removal for periodic maintenance or inspection, each of said panels comprising: 1) a rigidized metal panel pan comprising a plurality of dimples designed to absorb effects of thermal expansion resulting from extreme heat in order to avoid warping or crumpling of the metal outer layer, 2) a first layer of high density insulation positioned adjacent to said metal outer layer, 3) a second layer of insulation having density of less than one half the density of the first layer, 4) a reflector layer positioned between the first layer and the second layer, 5) a protective cover layer covering the second layer of insulation, B) a stand-off rectangular grid solidly connected to a structure and comprised of insulated sub-frame channel elements configured to support standard sized panels, said sub-frame channel elements being comprised of a generally u-shaped metal channel having within the channel of the channel elements a first channel insulation layer and a second insulation layer within the channel but covering the first insulation layer, said second insulation layer being high density insulation expandable upon the application by at least a factor of four with the application of heat from a hydrocarbon fire, C) a plurality of corner support brackets mounted on said stand-off rectangular grid and adapted to temporarily hold in place said standard sized panels during installation of the panels said corner support brackets being comprised of a locking tab and a locking disk, D) a plurality of generally T-shaped cover strips defining flanges adapted to trap in place said panels between the flanges of said T-shaped cover strips and said insulated sub-frame channels, E) a plurality of intermediate clips solidly attached at intermediate positions on said sub-frame channel elements at positions so as to identify locations for screw mounting said T-shaped cover strips, and F) a plurality of cover plates adapted to be screw mounted on said corner support brackets to cover gaps at intersections of said T-shaped cover strips.