Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
March 15, 2022
Patent Application Number
15819644
Date Filed
November 21, 2017
Patent Citations
Patent Primary Examiner
A flow control system for an irrigation sprinkler can include a service valve having an inlet, a first fluid port, a second fluid port, a third fluid port, and/or a valve piston having a valve piston inlet and a valve piston outlet. The system can include a pilot valve and a vent line. The system can include a filter in fluid communication with the inlet of the service valve. The valve piston can be configured to move vertically with respect to the first, second, and third fluid ports between first, second, and third valve positions.
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