2.
    发明专利
    未知

    公开(公告)号:IT1231213B

    公开(公告)日:1991-11-23

    申请号:IT2158889

    申请日:1989-08-31

    Applicant: TOA CORP

    Inventor: NISHIKAWA YUTAKA

    Abstract: A method of transporting mud, in which mud agitated and fluidized is supplied, while being pressurized by a pressurizing vane, through a check valve to a mud supply portion, and in which pressurizing air is supplied to the mud supply portion in a mud transporting direction to transport the mud in the mud supply pipe by the air pressure. According to this method, the mud can be continuously transported without large discharge noise.

    3.
    发明专利
    未知

    公开(公告)号:IT8921588D0

    公开(公告)日:1989-08-31

    申请号:IT2158889

    申请日:1989-08-31

    Applicant: TOA CORP

    Inventor: NISHIKAWA YUTAKA

    Abstract: A method of transporting mud, in which mud agitated and fluidized is supplied, while being pressurized by a pressurizing vane, through a check valve to a mud supply portion, and in which pressurizing air is supplied to the mud supply portion in a mud transporting direction to transport the mud in the mud supply pipe by the air pressure. According to this method, the mud can be continuously transported without large discharge noise.

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