Patents by Inventor Yuji Nakauchi

Yuji Nakauchi 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).

  • Face seal with elastomeric axial thrust member
    Patent number: 4413831
    Abstract: A shaft seal device for inhibiting any fluid flow through between two relatively rotating faces, for example, between a casing or the like stationary member and a rotary shaft or the like rotating member extending through the casing or the like stationary member. A cylindrical seal ring member made of elastomeric material is disposed between a rotary ring fluidtightly fitted onto the rotating member and a stationary ring fluidtightly fitted into the stationary member in such a manner that both the end faces thereof come in contact with the corresponding faces of the stationary member and the rotating member.
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: November 8, 1983
    Assignee: Kabushiki Kaisha Arai Seisakusho
    Inventors: Akira Washida, Yuji Nakauchi