Patents by Inventor Masakazu Fujimoto

Masakazu Fujimoto 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).

  • Apparatus for cleaning heat exchanger tubes
    Patent number: 4583586
    Abstract: An improvement in apparatus for cleaning heat exchanger tubes wherein each tube has chambers at its opposite ends for capturing a tube cleaning element, such as a brush, which is adapted to move in opposite directions through the tube upon reversing the direction of flow of heat exchange fluid therethrough. The improvement comprises apparatus for detachably mounting the chambers to the ends of the respective tubes including a holder plate having openings formed therethrough at locations corresponding to locations of the ends of the heat exchanger tubes.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: April 22, 1986
    Assignee: Ebara Corporation
    Inventors: Masakazu Fujimoto, Naoyuki Inoue