Patents by Inventor Ronald Francis Hurd

Ronald Francis Hurd 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).

  • Apparatus to determine the position of an actuator
    Patent number: 7609056
    Abstract: Apparatus to determine the position of a movable member of an actuator operating a valve assembly are disclosed. The movable member of the actuator displaces an actuation arm of a position sensor such that relative displacement occurs between a magnetic flux source and a magnetic flux sensor of the position sensor.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: October 27, 2009
    Assignee: Fisher Controls International LLC
    Inventors: Kenneth William Junk, Michel Ken Lovell, Ronald Francis Hurd, Steven B. Paullus
  • Apparatus to determine the position of an actuator
    Publication number: 20080061769
    Abstract: Apparatus to determine the position of a movable member of an actuator operating a valve assembly are disclosed. The movable member of the actuator displaces an actuation arm of a position sensor such that relative displacement occurs between a magnetic flux source and a magnetic flux sensor of the position sensor.
    Type: Application
    Filed: September 11, 2006
    Publication date: March 13, 2008
    Inventors: Kenneth William Junk, Michel Ken Lovell, Ronald Francis Hurd, Steven B. Paullus
  • Position sensor using a compound magnetic flux source
    Patent number: 7005847
    Abstract: A non-contacting position sensor detects relative displacement between two objects. A magnetic flux source is provided by a plurality of discrete magnets selectively determined to produce a highly configurable flux source that is easily adapted to rotary or rectilinear displacement. The interaction of the individual flux fields generated by the discrete magnets is controlled to produce both linear and non-linear relationships with respect to changes in displacement. A flux-gathering pole piece is dimensionally optimized to integrate the plurality of individual flux fields directed to a magnetic sensor.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: February 28, 2006
    Assignee: Fisher Controls International LLC
    Inventors: George Wayne Gassman, Carl Gene Scafferi, Ronald Francis Hurd
  • Position sensor using a compound magnetic flux source
    Patent number: 6909281
    Abstract: A non-contacting position sensor detects relative displacement between two objects. A magnetic flux source is provided by a plurality of discrete magnets selectively determined to produce a highly configurable flux source that is easily adapted to rotary or rectilinear displacement. The interaction of the individual flux fields generated by the discrete magnets is controlled to produce both linear and non-linear relationships with respect to changes in displacement. A flux-gathering pole piece is dimensionally optimized to integrate the plurality of individual flux fields directed to a magnetic sensor.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: June 21, 2005
    Assignee: Fisher Controls International LLC
    Inventors: George Wayne Gassman, Carl Gene Scafferi, Ronald Francis Hurd
  • Position sensor using a compound magnetic flux source
    Publication number: 20040004473
    Abstract: A non-contacting position sensor detects relative displacement between two objects. A magnetic flux source is provided by a plurality of discrete magnets selectively determined to produce a highly configurable flux source that is easily adapted to rotary or rectilinear displacement. The interaction of the individual flux fields generated by the discrete magnets is controlled to produce both linear and non-linear relationships with respect to changes in displacement. A flux-gathering pole piece is dimensionally optimized to integrate the plurality of individual flux fields directed to a magnetic sensor.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 8, 2004
    Inventors: George Wayne Gassman, Carl Gene Scafferi, Ronald Francis Hurd