Patents by Inventor Masanao Tokoro

Masanao Tokoro 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).

  • Temperature control unit and temperature control apparatus using it for raw molding sand or resin-coated sand for shell mold
    Patent number: 6793004
    Abstract: A temperature control unit for raw molding sand or resin-coated sand for a shell mold according to the present invention comprises a heat exchanger (A) consisting of a spiral hollow tube allowing heat carrier to flow, and a gas distribution tube assembly for making powder flow (B) for supplying gas to cause the flow of molding sand or resin-coated sand for a shell mold. Furthermore, a temperature control apparatus according to the present invention comprises a reservoir for raw molding sand or resin-coated sand for a shell mold, and said temperature control unit provided in said reservoir.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: September 21, 2004
    Assignees: Asahi Organic Chemicals Industry Co., Ltd., Tokoro Product, Inc.
    Inventors: Motoyoshi Yamazaki, Tomio Kuwatani, Masanao Tokoro
  • Temperature control unit and temperature control apparatus using it for raw molding sand or resin-coated sand for shell mold
    Publication number: 20040050527
    Abstract: A temperature control unit for raw molding sand or resin-coated sand for a shell mold according to the present invention comprises a heat exchanger (A) consisting of a spiral hollow tube allowing heat carrier to flow, and a gas distribution tube assembly for making powder flow (B) for supplying gas to cause the flow of molding sand or resin-coated sand for a shell mold. Furthermore, a temperature control apparatus according to the present invention comprises a reservoir for raw molding sand or resin-coated sand for a shell mold, and said temperature control unit provided in said reservoir.
    Type: Application
    Filed: September 17, 2002
    Publication date: March 18, 2004
    Inventors: Motoyoshi Yamazaki, Tomio Kuwatani, Masanao Tokoro