Patents by Inventor Robert W. Carrigan

Robert W. Carrigan 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: 6367844
    Abstract: This invention provides sealed access to the interior of a pressure vessel and consists of a tube, a collar, redundant seals, and a port. The port allows the seals to be pressurized and seated before the pressure vessel becomes pressurized.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: April 9, 2002
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Stanley S. Smeltzer, III, Robert W. Carrigan