Liquid dosage device having rotary feeler
AssigneeAktiebolaget Demektor
InventorsErich Salmijak, Eric Goransson
Life of this patent
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Abstract
The dosage of liquids in which an element is arranged to execute a rotating movement in a flow of liquids past the element and the element serves to alternately break a beam of light directed thereon so that the light impulses received thereupon are used via a feeler gauge and a valuation means to determine the liquid volume passing the element.
Claims7
A device for the dosage of liquids and more particularly for the measurement of beer, comprising a casing having first and second through channels therein, said channels being arranged at right-angles to and crossing each other, said first channel being of uniform cross-section throughout the length thereof, a fixing means adjacent each end of the first channel, an axle extending centrally of the first channel and secured to the fixing means, means providing a flow of liquid through the first channel, a feeler element positioned in the first channel and arranged on the axle for free rotary movement and driven by the liquid flow through the first channel, a light source located in the second channel on one side of the first channel, a light sensitive element of semi-conductor type located in the second channel on the other side of the first channel in line with the light source, the feeler element serving to alternately break a beam of light from the light source, and the axis of the light source and the axis of the feeler element being in correspondence, so that the number of light impluses emitted on rotation of the feeler element constitutes a measurement of the volume of light having passed the feeler element.
A device for the dosage of liquids and more particularly for the measurement of beer, comprising a casing having first and second through channels therein, said channels being arranged at right angles to and crossing each other, means providing a flow of liquid through the first channel, a feeler element positioned in the first channel for free rotary movement and capable of being driven by the liquid flow through the first channel, a light source located in the second channel on one side of the first channel, a light sensitive element of semi-conductor type located in the second channel on the other side of the first channel in line with the light source, the feeler element serving to alternately break a beam of light from the light source, the axis of the light source and the axis of the feeler element being in correspondence, so that the number of light impulses emitted on rotation of the feeler element constitutes a measurement of the volume of liquid having passed the feeler element, a transparent pipe within the first channel, an axle centrally located in the transparent pipe, a fixing means at each end of the transparent pipe to which the axle is attached, the feeler element being arranged on the axle, and one end of the axle being defined by a spiral coil allowing a resilient connection between the axle and the fixing means to which the axis is attached.
Dependencies are inferred from the claim text.