Patents by Inventor Robert J. Buzzard

Robert J. Buzzard 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).

  • Fatigue testing apparatus
    Patent number: 4916954
    Abstract: Apparatus is provided for obtaining a single crack in fatigue loading which emanates from a predetermined starting notch in a test specimen. This crack propagates in a direction in line with that of the applied Mode II load. The loading may be performed either monotonically or in a cyclic fatigue.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: April 17, 1990
    Assignee: The United States of America as represented by the United States National Aeronautics and Space Administration
    Inventor: Robert J. Buzzard
  • Laser plasma tube having internal gas path
    Patent number: 4143339
    Abstract: Several embodiments of a gas laser plasma tube are described having one or more internal gas return paths doubled back upon themselves within the structure which defines the gaseous discharge bore, to increase their length so that electrical gaseous discharge in the same is inhibited.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: March 6, 1979
    Assignee: Lexel Corporation
    Inventors: Robert J. Buzzard, Galen E. Mohler