公开(公告)号：CH615364A5

公开(公告)日：1980-01-31

申请号：CH233376

申请日：1976-02-25

Applicant: MEDICAL LABORATORY AUTOMATION

Inventor： KEEGAN WILLIAM P

IPC: G01F11/06 ,  B01L3/02

Abstract: A mechanical pipette having a fixed stroke for aspirating and discharging a predetermined volume of liquid into and from a reservoir. A measuring piston controls the volume of liquid drawn into the reservoir and a substantially larger piston assures that all of the liquid in the reservoir is expelled therefrom on a discharge stroke. On the discharge stroke, a mechanically actuated valve is opened to admit air being compressed by the substantially larger piston into the reservoir.

公开(公告)号：CA1029692A

公开(公告)日：1978-04-18

申请号：CA246255

申请日：1976-02-20

Applicant: MEDICAL LABORATORY AUTOMATION

Inventor： KEEGAN WILLIAM P

IPC: G01F11/06 ,  B01L3/02

Abstract: A mechanical pipette having a fixed stroke for aspirating and discharging a predetermined volume of liquid into and from a reservoir. A measuring piston controls the volume of liquid drawn into the reservoir and a substantially larger piston assures that all of the liquid in the reservoir is expelled therefrom on a discharge stroke. On the discharge stroke, a mechanically actuated valve is opened to admit air being compressed by the substantially larger piston into the reservoir.

公开(公告)号：AU1141676A

公开(公告)日：1977-09-01

申请号：AU1141676

申请日：1976-02-25

Applicant: MEDICAL LABORATORY AUTOMATION

Inventor： KEEGAN WILLIAM P

IPC: G01F11/06 ,  B01L3/02

Abstract: A mechanical pipette having a fixed stroke for aspirating and discharging a predetermined volume of liquid into and from a reservoir. A measuring piston controls the volume of liquid drawn into the reservoir and a substantially larger piston assures that all of the liquid in the reservoir is expelled therefrom on a discharge stroke. On the discharge stroke, a mechanically actuated valve is opened to admit air being compressed by the substantially larger piston into the reservoir.