Patent ID: 9737742
Date: 2017-08-22
CPC Classifications: A62C

Claim:
1. A dry sprinkler comprising: a structure defining a passageway extending along a longitudinal axis between an inlet and an outlet, the structure having a rated K-factor defining an expected flow of fluid in gallons per minute from the outlet divided by the square root of the pressure of the flow of fluid fed into the inlet of the passageway in pounds per square inch gauge, the structure including an inlet fitting having an inner surface defining a portion of the passageway of the structure and an outer inlet fitting surface for coupling the dry sprinkler to a piping network; a fluid deflecting structure proximate the outlet at a first distance in an unactuated mode and at a second distance in an actuated mode, the first and second distance being equal; an inner assembly including a fluid tube, a guide tube, and a trigger; a locator coupled to the inner assembly, the locator movable along the longitudinal axis between a first position in the unactuated mode and a second position in the actuated mode; a metallic annulus being supported by the locator, the metallic annulus including first and second metallic surfaces spaced apart along the longitudinal axis between an inner and outer circumference with respect to the longitudinal axis, the metallic annulus occludes a flow of fluid through the passageway when the locator is proximate the first position; a diverter having a frontal surface supported by the locator and disposed about a central axis, the frontal surface defining an outer perimeter, the frontal surface extending continuously between the central axis and the outer perimeter, the frontal surface defining a generally conic surface with a tip portion having a radius of curvature, the frontal surface being located within the portion of the passageway defined by the inner surface of the inlet fitting and having the outer perimeter disposed about the longitudinal axis when the locator is in the first position and the second position.