Patents by Inventor Barry D. Sidney

Barry D. Sidney 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: 4839330
    Abstract: A method of exchanging rare-isotope oxygen for common-isotope oxygen in the top several layers of an oxide-containing catalyst is disclosed. A sample of an oxide-containing catalyst is exposed to a flowing stream of reducing gas in an inert carrier gas at a temperature suitable for the removal of the reactive common-isotope oxygen atoms from the surface layer or layers of the catalyst without damaging the catalyst structure. The reduction temperature must be higher than any at which the catalyst will subsequently operate. Sufficient reducing gas is used to allow removal of all of the reactive common-isotope oxygen atoms in the top several layers of the catalyst. The catalyst is then reoxidized with the desired rare-isotope oxygen in sufficient quantity to replace all of the common-isotope oxygen that was removed.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: June 13, 1989
    Assignee: The United States of America as repesented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Robert V. Hess, Billy T. Upchurch, Kenneth G. Brown, Irvin M. Miller, David R. Schryer, Barry D. Sidney, George M. Wood, Ronald F. Hoyt
  • Patent number: 4829035
    Abstract: A method for the reactivation of a tin oxide-containing catalyst of a CO.sub.2 laser is provided. First, the catalyst is pretreated by a standard procedure. When the catalyst experiences diminished activity during usage, the heated zone surrounding the catalyst is raised to a temperature which is the operating temperature of the laser and 400.degree. C. for approximately one hour. The catalyst is exposed to the same laser gas mixture during this period. The temperature of the heated zone is then lowered to the operating temperature of the CO.sub.2 laser.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: May 9, 1989
    Assignee: The United States of America as represented by Administrator of the National Aeronautics and Space Adminstration
    Inventors: Billy T. Upchurch, Irvin M. Miller, Kenneth G. Brown, Robert V. Hess, David R. Schryer, Barry D. Sidney, George M. Wood, Patricia A. Paulin