Patents by Inventor Ryozo Arai

Ryozo Arai 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).

  • Rubber screens for vibratory screening apparatus
    Patent number: 4120785
    Abstract: A rubber screen for a vibratory screening apparatus comprises a plurality of first parallel rope members having suitable cross sectional shapes and arranged in a particle flowing direction, each of said first rope members having a tensile member composed of a strand of filament having a high elongation at break and an organic material having flexibility and/or elasticity and covering the tensile member, and a plurality of second parallel rope members having suitable cross sectional shapes and arranged in a direction normal to the first rope members, each of the second rope members having a tensile member of a material having a low elongation at break and an organic material having flexibility and/or elasticity and covering the tensile member, each point of intersection between the first and second rope members being suitably bonded.
    Type: Grant
    Filed: February 23, 1977
    Date of Patent: October 17, 1978
    Assignee: Mitsuboshi Belting Limited
    Inventors: Katsuo Kanamori, Nobuo Sakurai, Ryozo Arai