Copper-graphite brush
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United States of America Patent
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Jun 27, 2006
Grant Date -
Jul 31, 2003
app pub date -
Jan 27, 2003
filing date -
Jan 30, 2002
priority date (Note) -
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Abstract
A copper-zinc alloy powder of which zinc content is from 10 to 50 wt % and of which mean particle diameter is from 15 .mu.m or under is added to a Pb-less brush body comprising graphite, copper and a metal sulfide solid lubricant of a copper-graphite brush.
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