DROPPER Russian patent published in 2006 - IPC A01G25/02 

FIELD: agricultural engineering, in particular, drop irrigation equipment.

SUBSTANCE: dropper has casing with inlet and outlet branch pipes. Float with locking member is positioned within casing. Locking member is mounted inside outlet branch pipe and consists of replaceable washer, threaded bushing and rod, said washer, threaded bushing and rod being equipped with gauged openings. Rod has annular grooves. Multiple-thread coiling is provided on internal surface of threaded bushing. Air discharge channels are provided on rod surface between annular grooves. Rod is located in cavity of threaded bushing. Lower ends of rod and bushing are closed with threaded cover having apertures for drop discharge. Upper ends of threaded bushing and rod are joined with lower surface of replaceable washer. Casing and cover with threaded bushing are connected through threaded portions on its outer end portions.

EFFECT: wider range of consumption of irrigation water, uniform discharge of precipitations, and simplified series manufacture of dropper parts.

3 cl, 1 dwg