发明名称 |
Electric contacts, electric contact apparatus and method for detecting abrasion of the electric contacts |
摘要 |
A pair of electric contacts include a pair of first units which are provided on the surfaces of the end sides of the electric contacts, and generate light having first characteristics at the time of opening and closing of the electric contacts, and a pair of second units which are covered with the first units, and generate light having second characteristics differing from the first characteristics when abrasion of the first units reaches abrasion detection positions due to opening and closing of the electric contacts.
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申请公布号 |
US2005040020(A1) |
申请公布日期 |
2005.02.24 |
申请号 |
US20040921209 |
申请日期 |
2004.08.19 |
申请人 |
KANAZAWA YUKIO;MORI TADASHI |
发明人 |
KANAZAWA YUKIO;MORI TADASHI |
分类号 |
H02B13/02;H01H1/00;H01H33/26;H01H33/66;H02B13/065;(IPC1-7):H01J47/00 |
主分类号 |
H02B13/02 |
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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