发明名称 |
Electrical brush having a wear indicator |
摘要 |
An electrical brush having a wear indicator in the form of a marking substance within the brush which removes a film from a rotating collector surface of an electrical device just prior to the brush becoming worn to its minimum length. The removal of the film leaves a bright streak on the collector surface, and provides a visual indication that the brush is in need of replacement.
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申请公布号 |
US5739619(A) |
申请公布日期 |
1998.04.14 |
申请号 |
US19960618526 |
申请日期 |
1996.03.19 |
申请人 |
LIFE CYCLE ENGINEERING, INC. |
发明人 |
THORNLEY, GEORGE C. |
分类号 |
H01R39/58;(IPC1-7):H02K13/00 |
主分类号 |
H01R39/58 |
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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