发明授权
- 专利标题: Lister-chisel combination
- 专利标题(中): LISTER-CHISEL组合
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申请号: US3667550D申请日: 1969-10-22
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公开(公告)号: US3667550A公开(公告)日: 1972-06-06
- 发明人: LEHMAN CHARLES L
- 申请人: LEHMAN CHARLES L
- 专利权人: Charles L Lehman
- 当前专利权人: Charles L Lehman
- 优先权: US86855669 1969-10-22
- 主分类号: A01B13/08
- IPC分类号: A01B13/08 ; A01B39/20
摘要:
A plurality of chisels are supported in spaced-apart locations along a laterally extending tool bar which is adapted to be moved forwardly over the ground level. Each chisel has a forwardly extending point at its lower end for penetrating the soil to form a narrow trench therein as the tool bar moves forwardly. A lister is mounted on each chisel to dispose its lower cutting edges in position to sever the soil above the lower end of the chisel point and turn it onto beds on opposite sides of the trench.
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