One-by-one pneumatic seeder

摘要: A one-by-one pneumatic seeder with a seed dislodging member. rotary dispenser disc defining wall of hopper has perforate annular zone an array equidistant holes concentric the axis rotation disc. The rotates relative to member which is disposed juxtaposed and gradually approaches, though never crossing circle defined by centers in zone. part circular suction chamber on side opposite member, forward end direction substantially coinciding portion closest hole centers. seeds are thus rocked loosened before arriving at where they released eventually cutting off suction. may be curved, flat or even cylindrical, perpendicular otherwise angled plane disc, entirely radially inwardly outwardly