发明名称 |
METHOD FOR MAKING RECESSES |
摘要 |
For locating steel reinforcing members in construction materials, a galvanic cell is formed between an electrode and the reinforcing members by placing the electrode in electrically conducting contact with the construction material. When drilling an opening into the construction material using a hand-held drilling device and the drilling bit in the device contacts a reinforcing member, the potential difference between the electrode and the drill bit can be utilized as a signal for controlling the operation of the drilling device. |
申请公布号 |
EP0183644(A3) |
申请公布日期 |
1988.01.20 |
申请号 |
EP19850810501 |
申请日期 |
1985.11.01 |
申请人 |
HILTI AKTIENGESELLSCHAFT |
发明人 |
MILLAUER, WOLFGANG;RAAB, DIETER |
分类号 |
B28D1/00;B28D1/14;B28D7/00;H02H5/12;(IPC1-7):B28D1/14;B23Q11/00 |
主分类号 |
B28D1/00 |
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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