Patents by Inventor Toyohisa Shimodaira

Toyohisa Shimodaira 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).

  • Centrifugal braking device
    Patent number: 4216848
    Abstract: Centrifugally activated members adapted to project outwardly by centrifugal forces when the rotational speed of a shaft to be braked reaches a predetermined level are brought into contact with a brake shoe to impart a rotational force thereto. When rotated, the brake shoe moves axially of the shaft to be braked so as to force a brake wheel, mounted on the shaft to be braked, against a brake disk, thereby applying the brake to the shaft to be braked.
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: August 12, 1980
    Assignee: Hitachi, Ltd.
    Inventor: Toyohisa Shimodaira