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    Powder Suction And Discharge Apparatus
    1.
    发明申请
    Powder Suction And Discharge Apparatus 有权

    公开(公告)号：US20230058983A1

    公开(公告)日：2023-02-23

    申请号：US17891477

    申请日：2022-08-19

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Homare KURIBAYASHI ,  Masato HANAMURA ,  Koji IMAMURA ,  Koki YAMAKAWA ,  Hirokazu YAMAGA

    IPC: B05B7/14

    Abstract: A powder suction and discharge apparatus including a pipe, a container that is coupled to the pipe, a valve that opens and closes a passage of the pipe, and a pressure reducing mechanism that causes an internal space of the container to have negative pressure, in which in a first state in which the valve is open and the pressure reducing mechanism is driven, powder is sucked into the container through the pipe, in a second state in which the valve is closed, the sucked powder is stored in the container, and in a third state in which the valve is open, the stored powder is discharged through the pipe.

    Dispensing Device And Dispensing Method
    4.
    发明公开
    Dispensing Device And Dispensing Method 审中-公开

    公开(公告)号：US20230236214A1

    公开(公告)日：2023-07-27

    申请号：US18100002

    申请日：2023-01-23

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Homare KURIBAYASHI ,  Masato HANAMURA ,  Koki YAMAKAWA ,  Koji IMAMURA ,  Hiroyuki KANAI ,  Makihito HORI

    IPC: G01N35/10

    CPC classification number: G01N35/1016 ,  G01G2015/022

    Abstract: A dispensing device that dispenses a liquid sample with a target weight x (in grams) includes: a pipette that discharges the liquid sample into a vessel; and a controller that controls the pipette. The controller performs: first liquid discharge processing in which the controller discharges the liquid sample with a volume of (x/ρ0×y) milliliters (mL) into the pipette, where y is a numeric value greater than 0 and smaller than 1, and ρ0 is the tentative density (in grams per mL) of the liquid sample; first weight acquisition processing in which the controller acquires information about the weight z (in grams) of the liquid sample discharged in first liquid discharge processing; density calculation processing in which the controller calculates the density p (in grams/mL) of the liquid sample according to the expression ρ=z/(x/ρ0×y); and second liquid discharge processing in which the controller discharges, into the pipette, the liquid sample with a volume based on the density ρ, weight z, and target weight x.

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