Patents by Inventor Charles D. Grundy

Charles D. Grundy 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).

  • Removing coatings from pipe
    Patent number: 3999483
    Abstract: A method and an article of manufacture useful in the method are provided for removing a fracturable coating, such as concrete, from a conduit, such as an underwater pipeline. According to the method a plurality of spaced explosive detonating cords are placed against the portion of the coating to be removed. Upon detonation of the explosive detonating cords the coating is sufficiently fractured to enable its convenient removal from the conduit by a diver but the conduit is only very slightly damaged, if at all, by the explosion.
    Type: Grant
    Filed: July 30, 1975
    Date of Patent: December 28, 1976
    Assignee: Jet Research Center, Inc.
    Inventor: Charles D. Grundy