Patents by Inventor Richard H. Youngstrand

Richard H. Youngstrand 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).

  • Vinsol coating in sweetie barrel
    Patent number: 4601767
    Abstract: A process for producing double base propellant powders deterred with Vinsol by diluting the Vinsol with isopropyl alcohol or similar solvent and then adding the solvent Vinsol solution to the propellant powder in a sweetie barrel in an intermittent manner proceeded by addition of graphite.
    Type: Grant
    Filed: January 29, 1985
    Date of Patent: July 22, 1986
    Assignee: Olin Corporation
    Inventor: Richard H. Youngstrand