Patents by Inventor Takami Aoyama

Takami Aoyama 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).

  • Oil seal assembly for rotary engine
    Patent number: 3975125
    Abstract: An oil seal assembly is provided for a rotary engine in which an annular groove is formed in the side of the engine rotor with an oil seal ring being fitted within said annular groove. The oil seal ring is pressed against the side wall of the engine housing by annular spring means, and detent means are inserted between the ends of the annular spring means, the detent means being engaged in recesses carved in the innermost wall of the oil seal ring and in the bottom wall of the annular groove of the rotor to restrain relative motion therebetween during rotation of the rotor.
    Type: Grant
    Filed: September 11, 1974
    Date of Patent: August 17, 1976
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kunihiko Mizutani, Takami Aoyama, Kazuhiro Kawamura