Patents by Inventor Lee O. Brown

Lee O. Brown 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).

  • Concrete removal apparatus
    Patent number: 4229121
    Abstract: A tool is provided for removing concrete from underwater pipes which tool is comprised of a frame or member having two coaxially opposed concrete removal jets mounted thereon, whereby the opposing forces of the two jets cancel out the thrusting effect of one against the other to thereby provide a device which does not require massive rigid equipment to hold the jets or nozzles in place adjacent to the pipe.
    Type: Grant
    Filed: November 17, 1977
    Date of Patent: October 21, 1980
    Assignee: The Sea Horse Corporation
    Inventor: Lee O. Brown