MULTI-POSITION VALVELESS DISPENSER Russian patent published in 2013 - IPC B01J4/02 

FIELD: process engineering.

SUBSTANCE: proposed dispenser is intended for filling the process cartridges. invention relates to agrochemical analysis of soils by stream analysis for estimation of soil fertility. Proposed dispenser consists of sealed tubular manifold made of square or cylindrical sections from transparent chemically stable material to receive proportioned fluid. Proportioning elements are tightly secured at manifold outside bottom, each including fixed rod and moving cylinder with taper tip tightly connected with said rod where through and via manifold top cover furnished with threaded holes with plugs and seals. Drain tubes are located in proportioning elements arranged so that in upping or downing moving cylinder along fixed rod, their ends are always located, approximately, at the center of tapered tip, ID of the latter being smaller than that of moving cylinder.

EFFECT: higher accuracy of proportioning.

6 cl, 3 dwg