Patents by Inventor Theodore S. Sprague

Theodore S. Sprague 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).

  • Thermal sleeve
    Patent number: 4161967
    Abstract: A nozzle and thermal sleeve arrangement whereby the thermal sleeve maintains sealing contact with component parts of the nozzle during thermal expansion and contraction without giving rise to stress causing restraints.
    Type: Grant
    Filed: February 3, 1978
    Date of Patent: July 24, 1979
    Assignee: The Babcock & Wilcox Company
    Inventor: Theodore S. Sprague