Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hamid Najmolhoda0
Matthew S. Peterson0
Date of Patent
May 5, 2015
0Patent Application Number
139398950
Date Filed
July 11, 2013
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A solenoid actuator comprising an armature member that engages a spool including a spool cap on an end of the spool that is axially movable relative to the spool. A bore in the spool allows fluid to flow from a control port to the spool cap, such that pressure is established in the spool cap. The pressure established in the spool cap acts on the spool with a force directly proportional to the control pressure and the fluid-contacting area inside the spool cap.
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