Patent ID: 8695719
Filing Date: 2014-04-15
Classification: A62C

Abstract:
1. A concealed sprinkler head comprising: a sprinkler head body having a central axis and a central orifice disposed about said central axis, said central orifice defining an inlet and an outlet, and said body configured for attachment to a fire extinguishing fluid supply line; a deflector movably mounted to said sprinkler body; a sealing assembly for sealing said outlet; a thermally sensitive trigger assembly configured to releasably urge said sealing assembly into sealing engagement with said outlet; a housing attached to said sprinkler body and having a flange extending beyond said outlet; and a cover plate removably mounted to said flange of said housing, said cover plate having an inner surface for facing said flange, an outer surface having a planar portion and an arcuate portion extending from an outermost radial periphery of the cover plate and projecting outwardly from said planar portion in a direction generally along said central axis away from said housing and away from said sprinkler head, said arcuate portion forming a passageway extending inwardly from the outermost radial periphery of the cover plate to enable air to travel between said outermost radial periphery and said flange of said housing and toward said thermally sensitive trigger assembly.