Patents by Inventor Hirofusa Ogawa

Hirofusa Ogawa 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).

  • Apparatus for compacting solid waste materials and its accessory facilities
    Patent number: 4661290
    Abstract: An apparatus for compacting a solid waste material includes a hollow cylindrical body having a charging inlet for charging the solid waste material therethrough into the hollow cylindrical body, a heating portion for heating the solid waste material in the hollow cylindrical body, and a discharging outlet for discharging the solid waste material from the hollow cylindrical body; a rotatable shaft disposed in the hollow cylindrical body and having a helical screw blade thereon, the screw blade and an inner wall surface of the hollow cylindrical body being spaced from each other with a clearance provided therebetween for allowing the solid waste material in the hollow cylindrical body to form a bridge therein; a support for radially movably supporting an end of the rotatable shaft; a prime mover coupled to the end of the rotatable shaft through the support; and an outlet nozzle coupled to the discharging outlet for compressing the solid waste material discharged from the discharging outlet.
    Type: Grant
    Filed: May 7, 1985
    Date of Patent: April 28, 1987
    Assignee: JGC Corporation
    Inventors: Kenzo Sauda, Akitoshi Yokota, Takuro Yagi, Hiroshi Kuribayashi, Saburo Kita, Setsuo Shibata, Hirofusa Ogawa