US 12,030,072 B2
Pressure regulation device and method for irrigation sprinklers
Michael A. McAfee, Tucson, AZ (US)
Assigned to Rain Bird Corporation, Azusa, CA (US)
Filed by Rain Bird Corporation, Azusa, CA (US)
Filed on Nov. 15, 2021, as Appl. No. 17/526,214.
Claims priority of provisional application 63/114,320, filed on Nov. 16, 2020.
Prior Publication US 2022/0152642 A1, May 19, 2022
Int. Cl. B05B 12/08 (2006.01)
CPC B05B 12/088 (2013.01) 19 Claims
OG exemplary drawing
 
9. A regulator for compensating for pressure differences comprising:
an outer annular wall defining a flow passage for fluid flow through the regulator; and
a regulator inlet and a regulator outlet at either end of the flow passage;
wherein the outer annular wall has a first portion interrupted by a plurality of slots, the plurality of slots defining at least a first outer wall and a second outer wall of the outer annular wall, and a second portion downstream of the first portion and downstream of the plurality of slots that is uninterrupted; and
wherein the first outer wall and the second outer wall are capable of moving relative to one another and having a neutral state relative to one another with a first maximum distance between the first and second outer walls when there is no flow through the flow passage and a first state relative to one another when there is flow through the passage and where there is a second maximum distance between the first and second outer walls that is less than the first maximum distance to reduce pressure of fluid exiting the regulator.