#$%^&*AU2010202918B220160623.pdf#####ABSTRACT OF THE DISCLOSURE A sprinkler head includes a first housing carrying a center stem having an inlet at an upstream end and an outlet at a downstream end. A second housing is supported within the first housing and encloses a nozzle and a pressure regulator in axially-aligned relationship, defining a flowpath between the inlet and an orifice of the nozzle. The second housing is normally biased to a retracted position but is moveable to an extended position relative to the first housing and to the center stem. A surface of the pressure regulator cooperates with the outlet of the center stem as the second housing moves relative to the first housing to regulate pressure to the nozzle orifice.1/7 148 1 46 144 114 50 6 2 1 2 6 2 4 5 21 64- 10413 74112,,l121 32162 44 14Figure52
