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 threaded bushing, rod and threaded cover. Multiple-thread coiling is provided on internal surface of threaded bushing. Rod is equipped with annular grooves and is mounted within cavity of threaded bushing. Slots provided on rod surface are extending in parallel with axis of symmetry of rod. Slots in each step between adjacent annular grooves are expanded around axis through an angle of 90 deg as compared to adjacent slots. Sections of slots on rod surface are reducing in water supplying direction. Threaded cover has water discharge drop apertures. Casing is provided with openings, one of said openings being adapted for communicating said cavity with atmosphere and other openings being adapted for supplying of water from cavity into outlet branch pipe. On assembling of casing, float is located inside casing cavity.

EFFECT: increased efficiency by uniform discharge of precipitations in the form of droplets of desirable diameter.

11 dwg