发明名称 |
Apparatus for digging surface trenches in the ground |
摘要 |
An elongated rigid bar is arranged to be secured at one of its ends to a power unit and is enclosed through most of its length in a rigid housing. Longitudinal passageways are provided interiorly of the housing for receiving a cross link drive chain trained over a sprocket on the power unit and on a cross shaft supported at a free end of the housing. The cross shaft supports digging units. A ground engaging support wheel is attached to the housing adjacent its free end. The housing has a semi-flexible guard mounted on it adjacent the digging units.
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申请公布号 |
US4799320(A) |
申请公布日期 |
1989.01.24 |
申请号 |
US19880161403 |
申请日期 |
1988.02.23 |
申请人 |
WEST, RAYMOND M.;STEELE, ROBERT W. |
发明人 |
WEST, RAYMOND M.;STEELE, ROBERT W. |
分类号 |
E02F3/04;E02F3/18;E02F3/20;E02F5/02;E02F5/04;(IPC1-7):E02F5/02 |
主分类号 |
E02F3/04 |
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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