Patents by Inventor Fumio Jyoraku

Fumio Jyoraku 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: 4767285
    Abstract: An electric blower comprising an electric motor and an impeller drivingly rotated thereby. A housing and an end bracket connected thereto cooperate with each other to define an internal space within which the electric motor is disposed. A tubular wall surrounding an output shaft of the motor extends from an end wall of the end bracket into a central opening in a shroud plate of the impeller. A bearing is disposed between the tubular wall and the output shaft for rotatably supporting the output shaft. A guide vane assembly introduces air discharged from the impeller, into the internal space. The guide vane assembly is connected to the end bracket at a location radially outwardly remote from the bearing. The guide vane assembly guides the air flow from the impeller, toward openings in a peripheral wall of the end bracket.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: August 30, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Fumio Jyoraku, Hisanori Toyosima