Patents Assigned to Ishikawakima-Harima Jukogyo Kabushiki Kaisha
  • Patent number: 4054060
    Abstract: The present invention discloses a furnace gas sampling device provided with a gate valve of the type in which a swingable valve disk is actuated to seal a lance insertion hole formed through the furnace wall when a lance is retracted away from the furnace and a mechanism for discharging dust and the like out of the valve box while the valve disk sealing the lance insertion hole.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: October 18, 1977
    Assignee: Ishikawakima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Masayuki Ueno, Fumiaki Sano