Patents Assigned to Ietatsu Ohno
  • Patent number: 4205491
    Abstract: A vibration barrel grinding device particularly for light articles wherein the outer peripheral wall of a vibration barrel having a circular or polygonal grinding tub or a toroidal-shaped tub is formed of a pressurized flow wall and a pressured riser wall. A cylindrical core is provided as fixed or rotatable along the inner peripheral wall of the barrel and a proper number of blades are provided as inclined downward on the peripheral surface of the cylindrical core so that the flow of a mass may be forcibly moved downward to improve the grinding efficiency.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: June 3, 1980
    Assignee: Ietatsu Ohno
    Inventor: Mitsuo Nishiya