Patents by Inventor C. Clark

C. Clark 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).

  • Systems for recording position information in a magnetic layer on a piston rod
    Publication number: 20060192552
    Abstract: Described are system for recording piston rod position information in a magnetic layer on the piston rod. A piston rod has a magnetically hard layer formed thereon to provide a recording medium. A magnetic pattern is recorded in the magnetically hard layer. A magnetic field sensor disposed adjacent to the piston rod senses the recorded magnetic pattern while the piston rod is moving and generates signals in response to the magnetic pattern that are used to determine a position of the piston rod.
    Type: Application
    Filed: April 24, 2006
    Publication date: August 31, 2006
    Applicant: SRI International
    Inventors: Thomas Low, C. Clark, Ronald Pelrine, Joseph Eckerle, Chris Smith
  • Systems of recording piston rod position information in a magnetic layer on a piston rod
    Publication number: 20060038556
    Abstract: Described are systems of recording piston rod position information in a magnetic layer on the piston rod. A piston rod moving with respect to a cylinder has a magnetically hard layer formed thereon to provide a recording medium. A magnetic pattern is recorded in the magnetically hard layer. A magnetic field sensor senses the recorded magnetic pattern while the piston rod is moving with respect to the cylinder and generates signals in response to the magnetic pattern that are used to determine an instantaneous position of the piston rod.
    Type: Application
    Filed: October 25, 2005
    Publication date: February 23, 2006
    Applicant: SRI International
    Inventors: Thomas Low, C. Clark, Ronald Pelrine, Joseph Eckerle, Chris Smith