Patent ID: 9192956
Filing Date: 2015-11-24
Classification: B05B,Y10T

Abstract:
1. A sprinkler comprising: a sprinkler body in fluid communication with a water supply to provide water to the sprinkler; a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, the riser further comprising: a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a pressure regulating assembly mounted in the riser with a member in contact with a portion of the nozzle assembly, wherein the nozzle assembly holds the pressure regulating assembly in an open position to allow flow of water to the nozzle assembly, the pressure regulating assembly also configured to maintain a substantially constant water pressure in the nozzle assembly, the pressure regulating assembly further comprising a hollow tube extending through the reference pressure chamber and including a first end in fluid communication with the sprinkler body and a second end in fluid communication with the nozzle assembly, the hollow tube movable relative to the reference pressure chamber; wherein the riser further comprises a valve seat positioned below the hollow tube.