ELECTRIC WEED KILLER Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: active part of the working tool of the device is an oblique trapezoid plate with its acute angle on the front side of the working tool. The front side of the working tool has recesses with 20 deg horizontal dislocation of their axes. The recess opening zone walls have a certain angle of taper. In their middle parts the walls of the recesses run parallel with each other, and the bottom parts are circumferences The middle parts are sloping relative to the vertical plane opposite of the recess axis. EFFECT: lower weeding cost; higher efficiency. 3 cl, 7 dwg