DEVICE AND METHOD OF DISPENSING THE PRESET VOLUME OF LIQUID Russian patent published in 2018 - IPC B67C3/20 

FIELD: technological processes.

SUBSTANCE: invention includes a dispenser device and method for providing a controlled transport of liquid from a supply tank to a closed measuring intermediate vessel, defining a metered volume connected to the liquid delivery channel in the form of a conical nozzle having a locking member; measurement of the liquid level in a special tube, the result of which is the addition of liquid to the device; while the length of the channel between the inlet to the fluid delivery nozzle and the level measurement tube determines the volume to be dispensed; filling of the measuring closed intermediate vessel which is carried out by partially opening the nozzle to form an aerosol flow at a liquid flow rate of less than 0.1 ml/min to 1 ml/min, wherein the detection of the presence of the aerosol by the sensor is a filling signal, after which the nozzle is closed and the liquid is transported back to the storage tank, for which a reduced gas pressure is created, with the dispensed volume separated from the remaining liquid, and then a metered quantity of liquid is dispensed when the nozzle is opened.

EFFECT: invention can be used for dispensing and applying liquids and solutions, including colloids with increased accuracy and reproducibility of the dispensed volume, both by spreading for filling containers, and by aerosol spraying on the surface.

7 cl, 5 dwg