WATER OUTLET FOR IRRIGATION PIPELINE Russian patent published in 2007 - IPC A01G25/02 

FIELD: agricultural amelioration, in particular, drop irrigation technique for farm crops.

SUBSTANCE: water outlet for irrigation pipeline has casing connected to pipeline and drain apertures provided through pipeline. Irrigation pipeline and casing are formed from continuous tape. Overflow and drain apertures are provided in spaced apart relation with respect to tape edges. Overflow apertures provided along first edge are offset relative to drain apertures provided along second edge by distance equal to half the pitch of overflow apertures provided along first edge. Casing cavity is defined by tape edges overlapped with irrigation pipeline wall. Joint between tape edges and outer and inner surfaces of irrigation pipeline wall is made in the form of continuous strips welded by point welding along casing. Outer drain aperture of casing and inner overflow aperture of irrigation pipeline are arranged in diametrical plane of casing. Cord of water-permeable threads or woven wick is placed within casing cavity.

EFFECT: increased efficiency by providing uniform liquid flow rate along the entire length of irrigation pipeline.

4 dwg