DROPPER Russian patent published in 2006 - IPC A01G25/02 

FIELD: agriculture, in particular, drop irrigation equipment.

SUBSTANCE: dropper has casing with inlet and outlet branch pipes. Float with lock member is mounted within casing in outlet branch pipe and is made in the form of elastic membrane and flange. One side of flange is provided with bowl-shaped cavity inside bushing. Outer surface of bushing is provided with threaded portion. Radial slots are formed on flange outer surface and intersect one another within annular channel on flange peripheral portion. Slots deviate from bowl-shaped toward annular channel. Conical depressions formed at radial slot and annular channel intersection points are equipped with water dropping openings. Cable of water-conducting filaments is laid within annular channel. Wicks are arranged within radial channels. Ends of each of wicks are loosely laid within bowl-shaped cavity and conical depression under cord. Sealing ring is positioned on end of flange within annular channel. Sealing ring is joined with cylindrical wall of outlet branch pipe to serve as housing. Conical ground engaging member is positioned on lower end of flange. Elastic membrane equipped with openings and bushing on outer side of flange are fixed by means of threaded portion within dropper casing under float.

EFFECT: increased efficiency by providing uniform moistening of local zone of plot under irrigation process.

2 cl, 2 dwg