Patents by Inventor William D. Chapin

William D. Chapin 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: 11989009
    Abstract: Methods and systems to control stacked hexapod platforms for use as tools, which function with both high accuracy and high precision are provided. In some embodiments, the methods and systems include a convergence of modern control theory, and machine learning. Furthermore, some embodiments provide control algorithms to carry out autonomous in-space assembly operations using assemblers. Some embodiments provide methods and systems which combine long-reach low precision manipulators and smaller, high-precision assembler with interchangeable tools.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: May 21, 2024
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: James H. Neilan, II, Matthew K. Mahlin, John R. Cooper, Laura M. White, Benjamin N. Kelley, Matthew P Vaughan, Iok M. Wong, John W. Mulvaney, Erik E. Komendera, William D Chapin, Joshua N. Moser, Samantha H. G. Chapin
  • Publication number: 20220091593
    Abstract: Methods and systems to control stacked hexapod platforms for use as tools, which function with both high accuracy and high precision are provided. In some embodiments, the methods and systems include a convergence of modern control theory, and machine learning. Furthermore, some embodiments provide control algorithms to carry out autonomous in-space assembly operations using assemblers. Some embodiments provide methods and systems which combine long-reach low precision manipulators and smaller, high-precision assembler with interchangeable tools.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 24, 2022
    Inventors: James H. Neilan, Mathew K. Mahlin, John R. Cooper, Laura M. White, Benjamin N. Kelley, Matthew P. Vaughan, I.O.K. M. Wong, John W. Mulvaney, Erik E. Komendera, William D. Chapin, Joshua N. Moser
  • Patent number: 5234361
    Abstract: A foiled grating is provided for use with a jet-powered personal watercraft. The grating is adapted to be secured substantially across the intake opening in the bottom of the craft's hull and includes a foil and at least two substantially parallel bars oriented longitudinally within the intake opening. The foil is supported by the bars and positioned so as to divide a section of the intake channel into upper and lower portions to direct the intake water flow for a more even flow to the craft's jet pump.
    Type: Grant
    Filed: November 10, 1992
    Date of Patent: August 10, 1993
    Inventors: Glenn Dickinson, William D. Chapin