DROPPER Russian patent published in 2011 - IPC A01G25/02 

FIELD: agriculture.

SUBSTANCE: dropper includes vessel with inlet and outlet nozzles. Vessel comprises locker element, entering outlet nozzle. In outlet channel of lower vessel part there is a drop feed controller. Drop feed controller consists of three composite parts. Upper conical part is a locker element. Average threaded part with thread pitch T is the channel for water passage. Lower part has a conical element with concave surface. Concave surface generatrix is arranged with gradual increase of angle and is described by the following equation: where R - radius of conical element base; α - final angle of tangent turn to generatrix curve, α<90°.

EFFECT: design makes it possible to improve efficiency of drop sprinkling and to improve reliability of dropper operation.

2 cl, 3 dwg