US 4,706,426 AGranted

Fire-rated flush mounted corner guard

AssigneeBalco, Inc.

InventorRoger L. Rumsey

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Abstract

A fire-rated, flush mounted corner guard is provided which serves to maintain continuous integrity in the fire rating of building walls notwithstanding the recessing thereof to accommodate a corner guard and consequent lessening of the amount of fire rock present at the corner. The corner guard preferably includes an upright, continuous, floor-to-ceiling, L-shaped in cross-section synthetic resin corner cover, means for resiliently mounting the cover within a corner recess substantially flush with the building walls, and insulating means within the corner recess beneath the cover. In this way the corner guard assembly provides a fire rating substantially equivalent to the fire rating of the walls. Preferably, the insulating means includes a heat-expandable continuous ceramic insulating sheet and steel protector disposed over the insulating material and beneath the cover and which overlaps the wall outermost surfaces adjacent the corner portion.

Claims11

Dependent claims

A fire rated guard for covering a junction area presented by adjacent walls, said walls each having an outermost surface and being relieved in the vicinity of said juncture area for defining a recessed area presenting recess-defining wall surfaces for receiving said guard, said fire rated guard comprising:

a cover configured to substantially cover said recessed area;
means for mounting said cover in covering relationship to said recessed area;
heat insulating and protective means interposed within said recessed area and behind said cover for resisting the effects of heat and increasing the fire rating of said walls in the vicinity of said juncture area,
said heat insulating and protective means comprising a thin metallic protector plate disposed in proximal, face-to-face relationship with said recess-defining wall surfaces for cooperatively defining between the recess-defining wall surfaces and said plate a continuous, thin, insulation-receiving channel, said protector plate being formed of metallic material capable of withstanding exposure to a flame of 1800.degree. F. for two hours such that, after the two hour flame exposure, the protector plate will not pass water from a fire hose stream directed thereagainst,
said insulating and protective means further comprising a thin sheet of thermal insulating material situated within said insulating-receiving channel and remote from said mounting means and cover,
the combined thickness of said insulating material and plate being substantially less than the depth of said recessed area whereby said guard will essentially fit within the recessed area to give a smooth, aesthetic appearance to said juncture area.

3 more elements

Dependencies are inferred from the claim text.