| 发明名称 |
Two-piece earth engaging implement and method of forming the same |
| 摘要 |
An agricultural earth engaging implement formed from two metal plate sections. One piece forms a narrow profile shaft and the other forms the earth engaging portion. The shaft is formed to provide a tapered cavity for receiving a tine and the implement is held on to the tine by frictional forces.
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| 申请公布号 |
US4781254(A) |
申请公布日期 |
1988.11.01 |
| 申请号 |
US19860948462 |
申请日期 |
1986.12.30 |
| 申请人 |
RALPH MCKAY LIMITED |
发明人 |
JOHNSON, WILLIAM M. |
| 分类号 |
A01B35/22;A01B39/22;(IPC1-7):A01B15/04;B21D5/16;B21H7/06 |
主分类号 |
A01B35/22 |
| 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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