Invention Grant
- Patent Title: Pilot valve
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Application No.: US15944361Application Date: 2018-04-03
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Publication No.: US10508751B2Publication Date: 2019-12-17
- Inventor: Meade M. Neal
- Applicant: Nelson Irrigation Corporation
- Applicant Address: US WA Walla Walla
- Assignee: NELSON IRRIGATION CORPORATION
- Current Assignee: NELSON IRRIGATION CORPORATION
- Current Assignee Address: US WA Walla Walla
- Agency: Nixon & Vanderhye P.C.
- Main IPC: F16K31/40
- IPC: F16K31/40 ; A01G25/16

Abstract:
A pilot valve includes a housing, a motor secured in the housing and including a rotating output shaft, and a rocker disposed in the housing and coupled with the motor via a cam mechanism. The rocker is pivotable between a CLOSED position and an OPEN position by operation of the motor. The rocker includes a left-side boss and a right-side boss that are positioned in a path of the cam mechanism, where the left- and right-side bosses serve as cam stops in the CLOSED and OPEN positions, respectively. The housing may include features to better secure the motor, and the assembly may be configured to prevent unintended changes of state during periods of nonuse.
Public/Granted literature
- US20190301633A1 PILOT VALVE Public/Granted day:2019-10-03
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