DROPPER Russian patent published in 2006 - IPC A01G25/02 

FIELD: agricultural amelioration, in particular, drop irrigation equipment used for irrigation of horticulture crops, grape and berry fields.

SUBSTANCE: dropper has casing with cover equipped with inlet and outlet openings. Membrane incorporated within casing is adapted for cooperation with lower casing surface when pressure is created. Supporting portion is provided on protruding part within casing. Dropper is equipped with additional chamber having float formed as hollow sphere located within said chamber, and membrane disposed above droplet former made as truncated cone. Smaller base of truncated cone is provided with slot formed as spherical segment for accommodation therein of float in its initial position. Membrane is made from thermoplastic material and is positioned for embracing surface of truncated cone, which is equipped with channels joined to outlet openings.

EFFECT: increased efficiency and uniform irrigation of crops.

2 cl, 2 dwg