| 发明名称 |
Screw and tool for unscrewing and removal of nuts from screws |
| 摘要 |
An expansion screw (2) has a threaded bolt with an outer thread (8) and a nut (4). In the end conical area of the threaded bolt radial teeth allow the screw to work with a tool and cause a torque of the bolt against the nut. The inner surface of the tool corresponds to the outer surface of the screw.
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| 申请公布号 |
DE19814291(A1) |
申请公布日期 |
1999.10.14 |
| 申请号 |
DE19981014291 |
申请日期 |
1998.03.31 |
| 申请人 |
BEISNER, HOLGER |
发明人 |
BEISNER, HANS-WILHELM |
| 分类号 |
B23P19/06;B25B23/14;B25B23/142;F01D25/24;F16B35/04;(IPC1-7):F16B23/00;B25B13/00;B25B23/08;F16B31/00 |
主分类号 |
B23P19/06 |
| 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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