Patents by Inventor Graeme Van Dongen

Graeme Van Dongen 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).

  • Method and apparatus for circumferential application of materials to an interior surface of a curved pipe
    Patent number: 6234383
    Abstract: A method and apparatus for circumferential application of materials to an interior surface of a curved pipe includes providing a pipe support with a rotational axis. A curved section of pipe is mounted to the pipe support. An arm supporting an applicator head is positioned within the curved section of pipe. The pipe support is rotated about the rotational axis, while coordinating movement of the arm to maintain the applicator head in a working position within the curved section of pipe.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: May 22, 2001
    Assignee: Almac Machine Works Ltd.
    Inventors: Fred Harmat, Graeme Van Dongen