Patent ID: 9205290
Filing Date: 2015-12-08
Classification: A47J,A62C,B05B

Abstract:
1. A fire protection nozzle comprising: a base defining an inlet and an outlet along an axis, the base having an orifice, the orifice have an inlet diameter and an outlet diameter, the outlet diameter being greater than the inlet diameter, the orifice defining a K-factor of less than 1.0 gpm/psi½; and a diffuser having a substantially domed portion, the diffuser being aligned with the orifice, the substantially domed portion having a maximum diameter being less than a summation of the inlet diameter and the outlet diameter of the orifice, wherein the diffuser aligned with the orifice, the diffuser providing a fluid distribution of fluid flowing from the orifice to a coverage area, the coverage area having a first area defining 16 square feet and a second area defining 20 square feet circumscribing the first area, the first area receiving approximately 60-70% of the fluid distribution from the nozzle and the second area receiving approximately 30-40% of the fluid distribution from the nozzle, and the fluid being distributed to provide: (1) at least 0.080 gallons per minute per square foot to the coverage area; (2) at least 0.120 gallons per minute per square foot to the first area of the coverage area; (3) at least 0.040 gallons per minute per square foot to the second area of the coverage area; and (4) at least 0.080 gallons per minute per square foot to each square for the first area of the coverage area.