发明名称 Subtiller
摘要 Combination sweep and subtiller having a plurality of leg shanks extending downward from the sweep. Each shank is angled in the direction of travel to push soil toward the center of the sweep, and simultaneously to provide minimal draft. In addition there is a horizontal bend midway between the upper and lower extremities of the shank so that the lower extremity is bent toward the center of the sweep in order to cause a soil fracture plane in the direction of the center of the sweep. The lower end of the shank has a diagonal bend toward the center of the sweep to agitate the soil thereby.
申请公布号 US4817727(A) 申请公布日期 1989.04.04
申请号 US19870042086 申请日期 1987.04.24
申请人 THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF AGRICULTURE 发明人 MIELKE, LLOYD N.;BASHFORD, LEONARD L.
分类号 A01B15/02;(IPC1-7):A01B13/08 主分类号 A01B15/02
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