Patents by Inventor William J. Ballantyne

William J. Ballantyne 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).

  • Patent number: 5295399
    Abstract: A force moment sensor for interjection in a load path comprises two rings having a common central axis joined by a resilient wall. Three or four tongue-like targets attached to one of the rings and equally spaced about the periphery of the ring project parallel to the central axis and a like number of proximity sensing assemblies attached to the other ring detect the proximity of these targets. These target-sensing assembly pairs allow sensing of forces along the central axis and torques about the two shear axes. Three or four additional tongue-like targets attached to one of the rings and equally spaced about the periphery of the ring project perpendicular to the central axis and a like number of sensing assemblies attached to the other ring detect the proximity of these targets. These target-sensing assembly pairs permit the measuring of forces along the two shear axes and torque about the central axis.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: March 22, 1994
    Assignee: Spar Aerospace Limited
    Inventors: Andris P. Grant, William J. Ballantyne