Volume measurement and dosage device

Details Volume measurement and dosage device Volume measurement and dosage device

G - Physics

01

N

222/2, 222/76

G01N 1/10 (2006.01) B01L 3/02 (2006.01) G01F 11/02 (2006.01)

Patent

CA 2016801

Abstract A volume measurement and dosage device possesses a cylinder- piston- and valve-system (4). With this system, liquid can be drawn up and/or delivered in defined quantities. At least two channels (33, 36, 38) are provided in the valve-system, which can be connected with at least one opening (32) in the cylinder bottom (11). The piston (12) is displaceable within the cylinder (10) by means of an actuation device (3). The cylinder (10) is at the same time surrounded by a holding device (5, 40), in which it is mounted in bearings to rotate with the cylinder bottom (11) around an axis common to the longitudinal axis of the cylinder (Y) or parallel to it. The cylinder bottom (11), with at least two channel openings (29, 30, 31), rests with a sealed seating upon a valve element (28). Through rotation of the cylinder bottom (11), its opening (32) can alternately be aligned with the channel openings (29, 30, 31) of the valve element (28). (Figure 1)

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