Patent ID: 8162069

Claim:
An upright fire protection sprinkler, comprising: a sprinkler body, having an input orifice at an input end of the sprinkler for receiving fluid and an output orifice at an output end of the sprinkler for outputting the fluid, the body having a connection portion at the input end and an extended portion extending between the connection portion and the output end, wherein the extended portion is at least as long as the connection portion; a pair of frame arms extending from the output end and meeting at a hub positioned in axial alignment with the output orifice, wherein the frame arms are integrally formed with the body; and a deflector positioned on the hub and configured to direct the fluid output from the output orifice substantially in a direction back toward the output end, wherein the width of the extended portion, measured in a plane perpendicular to a plane passing through the frame arms, is substantially uniform along the length of the extended portion.