Volume measurement and dosage device

Details Volume measurement and dosage device Volume measurement and dosage device

1990-05-09

1991-11-05

Huppert, Michael S.

Dispensing

Plural sources, compartment, containers and/or spaced jacket

With selecting means

222330, 222333, 222383, 422100, G01N 100

Patent

active

050625470

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).

REFERENCES:
patent: 2872082 (1959-02-01), Neugebauer
patent: 3543965 (1970-12-01), Lehmann
patent: 3568888 (1971-03-01), Baldoni
patent: 4171070 (1979-10-01), Colgate et al.
patent: 4760939 (1988-08-01), Ball et al.

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