发明名称 |
Cultivator sweep with pair of rearwardly extending downturned rigid flaps |
摘要 |
The convex upper surface of the generally triangular sweep has oppositely inclined, lateral faces that diverge from the forwardmost point of the sweep and serve to loosen and lift the soil while the outer cutting edges sever subsurface roots of weeds and other above-ground growth. Rigid, rearwardly extending flaps at the rear extremity of the sweep are disposed at such a strategic angle that although they rigidify the trailing section of the sweep and reduce wear which might otherwise occur at outer rear corners of the sweep, they avoid untoward turning and rolling of the loosened soil and severed plant materials so that moisture-retaining trash and plant residue is left intact on the ground surface.
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申请公布号 |
US4850435(A) |
申请公布日期 |
1989.07.25 |
申请号 |
US19870018274 |
申请日期 |
1987.02.24 |
申请人 |
MORRIS ROB-WEEDER COMPANY, LTD. |
发明人 |
MORRIS, GEORGE H.;MICHALCHUK, DONALD M.;HARPER, LYLE |
分类号 |
A01B35/26 |
主分类号 |
A01B35/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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