DROPPER Russian patent published in 2004 - IPC

FIELD: agronomical amelioration, in particular, drop irrigation of vegetable crops, vineyards, gardens and other plantations. SUBSTANCE: dropper has collapsible chamber, injector made in the form of pin, and water supplying dosing device. Collapsible chamber has union, through which dropper is communicated with water distributing main of drop irrigation system. Rigidity ribs provided on pin surface are converging to pin pointed end. Water supplying dosing device mounted in collapsible chamber is made in the form of hollow spherical member. Supporting shoe is formed on injector pin below collapsible chamber. Dropper pin is formed as hollow member and made from water-tight material. Lower part of pin is closed with plug having pointed end. Water-distributing member made in the form of perforated cylinder is inserted into pin cavity. Rings are provided on outer surface of perforated cylinder in equally spaced relation with respect to one another. Perforation slots are formed between each pair of rings. Slots are oriented along cylindrical surface generatrix. Length of slots is less than pitch of ring pair. EFFECT: simplified construction, increased service life and improved quality of irrigation. 3 cl, 1 dwg