Samuel C. Walker;John Austin Brennan;Alberto Carrillo Maloof
发明人:
Samuel C. Walker,John Austin Brennan,Alberto Carrillo Maloof
申请号：
US13495402
公开号：
US20130334340A1
申请日:
2012.06.13
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A variable arc sprinkler head or nozzle may be set to numerous positions to adjust the arcuate span of the sprinkler. The nozzle may include an arc adjustment valve having two portions that helically engage each other to define an opening that may be adjusted at the top of the sprinkler to a desired arcuate length. The arcuate length may be adjusted by pressing down and rotating a deflector to directly actuate the valve. The nozzle may also include a radius reduction valve that may be adjusted by actuation of an outer wall of the nozzle. Rotation of the outer wall causes a flow control member to move axially to or away from an inlet.
