Patents by Inventor Hans S. Fairchild

Hans S. Fairchild 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).

  • Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment
    Patent number: 6816788
    Abstract: A measurement apparatus for making magnetic and gravity component measurements in a borehole, including measurements made while the apparatus is rotating about the borehole axis, comprising a magnetic field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, a gravity field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, an inertial angular rotation sensing device having an axis of sensitivity along the borehole axis to sense inertial angular motion about the borehole axis, control, power and processing circuitry to operate said sensing devices and to process the outputs of said sensing devices to obtain stabilized component data in a coordinate system that does not rotate with the said measurement apparatus, communication circuitry to transmit output data to auxiliary equipment at the surface or in the borehole, and support structure to support the sensing devices.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: November 9, 2004
    Assignee: Scientific Drilling International
    Inventors: Donald H. Van Steenwyk, James N. Towle, Hans S. Fairchild
  • Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment
    Publication number: 20030220743
    Abstract: A measurement apparatus for making magnetic and gravity component measurements in a borehole, including measurements made while the apparatus is rotating about the borehole axis, comprising a magnetic field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, a gravity field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, an inertial angular rotation sensing device having an axis of sensitivity along the borehole axis to sense inertial angular motion about the borehole axis, control, power and processing circuitry to operate said sensing devices and to process the outputs of said sensing devices to obtain stabilized component data in a coordinate system that does not rotate with the said measurement apparatus, communication circuitry to transmit output data to auxiliary equipment at the surface or in the borehole, and support structure to support the sensing devices.
    Type: Application
    Filed: January 9, 2003
    Publication date: November 27, 2003
    Applicant: Scientific Drilling International
    Inventors: Donald H. Van Steenwyk, James N. Towle, Hans S. Fairchild
  • Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment
    Patent number: 6651496
    Abstract: A measurement apparatus for making magnetic and gravity component measurements in a borehole, including measurements made while the apparatus is rotating about the borehole axis, comprising a magnetic field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, a gravity field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, an inertial angular rotation sensing device having an axis of sensitivity along the borehole axis to sense inertial angular motion about the borehole axis, control, power and processing circuitry to operate said sensing devices and to process the outputs of said sensing devices to obtain stabilized component data in a coordinate system that does not rotate with the said measurement apparatus, communication circuitry to transmit output data to auxiliary equipment at the surface or in the borehole, and support structure to support the sensing devices.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: November 25, 2003
    Assignee: Scientific Drilling International
    Inventors: Donald H. Van Steenwyk, James N. Towle, Hans S. Fairchild
  • Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment
    Publication number: 20030041661
    Abstract: A measurement apparatus for making magnetic and gravity component measurements in a borehole, including measurements made while the apparatus is rotating about the borehole axis, comprising a magnetic field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, a gravity field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, an inertial angular rotation sensing device having an axis of sensitivity along the borehole axis to sense inertial angular motion about the borehole axis, control, power and processing circuitry to operate said sensing devices and to process the outputs of said sensing devices to obtain stabilized component data in a coordinate system that does not rotate with the said measurement apparatus, communication circuitry to transmit output data to auxiliary equipment at the surface or in the borehole, and support structure to support the sensing devices.
    Type: Application
    Filed: August 12, 2002
    Publication date: March 6, 2003
    Inventors: Donald H. Van Steenwyk, James N. Towle, Hans S. Fairchild