PNEUMATIC SEEDING UNIT Russian patent published in 1997 - IPC

FIELD: agricultural engineering, in particular, precise drilling of row crops. SUBSTANCE: pneumatic seeding unit has rotation spindle 11 of lever 14 with excessive seed ejector 10. Spindle 11 is pivotally connected with base 12 mounted on housing 1 for displacement and fixation in predetermined positions. Housing 1 is provided with slot 16 having length not less than space between circles defining outer rows of suction openings in disk 5. EFFECT: wider operational capabilities and improved quality of single-seed drilling. 2 dwg