Patents by Inventor Todd Michael Murray

Todd Michael Murray 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).

  • Hydraulic vibration damper piston with an integral electrically operated adjustment valve
    Patent number: 7654369
    Abstract: A vibration damper piston includes a piston body with a bore from which first and second apertures respectively provide paths to first and second chambers of the vibration damper. A valve spool in the bore defines a pilot chamber and controls fluid flow between the first and second apertures. First and second springs bias the valve spool in opposing directions. A control orifice provides a continuous fluid path between the first chamber and the pilot chamber, and a variable orifice provides another fluid path between the second chamber and the pilot chamber. An actuator is operably connected to adjust the variable orifice in response to a control signal.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: February 2, 2010
    Assignee: HUSCO International, Inc.
    Inventors: Todd Michael Murray, Curtis L. Van Weelden, Eric Peter Hamkins
  • HYDRAULIC VIBRATION DAMPER PISTON WITH AN INTEGRAL ELECTRICALLY OPERATED ADJUSTMENT VALVE
    Publication number: 20090288924
    Abstract: A vibration damper piston includes a piston body with a bore from which first and second apertures respectively provide paths to first and second chambers of the vibration damper. A valve spool in the bore defines a pilot chamber and controls fluid flow between the first and second apertures. First and second springs bias the valve spool in opposing directions. A control orifice provides a continuous fluid path between the first chamber and the pilot chamber, and a variable orifice provides another fluid path between the second chamber and the pilot chamber. An actuator is operably connected to adjust the variable orifice in response to a control signal.
    Type: Application
    Filed: May 20, 2008
    Publication date: November 26, 2009
    Inventors: Todd Michael Murray, Curtis L. Van Weelden, Eric Peter Hamkins