Patent ID: 9233266
Filing Date: 2016-01-12
CPC Classification: A62C,B05B

Claim Text:
1. An upright, suppression mode sprinkler, comprising: a generally tubular body defining a passageway along a longitudinal axis, the passageway having a K factor of at least 16.8, where the factor equals the flow of water in gallons per minute through the passageway divided by the square root of the pressure of water fed to the body in pounds per square inch gauge (GPM/(psig) at least one frame arm coupled to the body proximate the outlet, the at least one frame arm being formed as an unitary member with the tubular body; a closure assembly positioned proximate the outlet opening so as to occlude the passageway, the closure assembly having a cylindrical portion coupled to a plate portion and a cup shaped portion contiguous to the plate portion, the closure assembly further having a metallic seal disposed between the cylindrical portion and the plate portion, and an ejection spring having a spring body and two distal spring ends, the spring body engaging the cup shaped portion with the spring ends engaging a portion of the at least one frame arm; a unactuated heat responsive trigger assembly that retains the closure so as to close the passageway, the heat responsive trigger assembly having a Response Time Index of less than 100 meter a deflector assembly coupled with the body through at least one frame arm so as to be spaced from and generally aligned with the outlet opening and the longitudinal axis, the deflector assembly including a nosepiece and an annular redirecting member, the nosepiece having a major deflecting surface facing the outlet and symmetric about the longitudinal axis, and a plate member coupled to the at least one frame arm and spaced from the outlet opening, the plate member including a first generally planar portion, a conical second portion that extends in an oblique direction relative to the longitudinal axis, and a third portion extending from the conical second portion at a second angle relative to the longitudinal axis, the third portion including a plurality of tines and a plurality of slots with at least one slot disposed between every two tines, the plurality of slots including at least one curved edge slot located on the second conical portion and at least one generally linear edge slot located on an intersection of the second conical portion and the third portion, so that, when the heat responsive trigger assembly is actuated and the closure is positioned to allow a flow of water to issue from the outlet opening of the body towards a ceiling to be redirected to provide a density of fluid that suppresses a fire in a storage situated beneath the ceiling.