Patents Assigned to Fuji Tomson Kabushiki Kaisha
  • Patent number: 3994269
    Abstract: The multistep fluid control valve comprises a valve case having a plurality of valve seats. A valve stem is provided in the valve case and is capable of being continuously or stepwise displaced axially. At least one valve body is shiftably mounted on the valve stem it is urged toward the corresponding one of the valve seats, but normally arrested at a position clear of the valve seat. This valve body closes the valve seat when the valve stem is moved a predetermined amount. At least one further valve body is provided axially in line with the valve stem so as to cooperate with a corresponding one of the valve seats. The further valve body is actuated by a further stepwise movement of the valve stem so that the corresponding valve seat is opened or closed by the further valve body.
    Type: Grant
    Filed: July 31, 1975
    Date of Patent: November 30, 1976
    Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Fuji Tomson Kabushiki Kaisha
    Inventors: Hiroyuki Takaoka, Osamu Aki, Kazuhiro Kaneko