Patents by Inventor John Niedermeyer

John Niedermeyer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • STEP MOTOR VALVE ASSEMBLY WITH FAIL-SAFE FEATURE
    Publication number: 20060238039
    Abstract: A step motor valve assembly comprises a housing including a threaded portion, a rotor having rotational axis and a threaded portion in threaded engagement with the threaded portion of the housing such that rotation of the rotor will effect axial movement of the rotor relative to the housing, a valve member carried by the rotor for axial movement toward and away from a valve seat upon rotation of the rotor in respective opposite directions, and a return mechanism for moving the valve member to a fail-safe position upon a loss of power to the step motor valve assembly.
    Type: Application
    Filed: April 6, 2006
    Publication date: October 26, 2006
    Applicant: Parker-Hannifin Corporation
    Inventors: John Niedermeyer, Lyman Wycoff