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US 2003/0141777 A1Published application
Copper-graphite brush
AssigneeTRIS Inc.
InventorsTakayoshi Otani, Masakiyo Shimada, Hirotada Kanagawa, Yukinobu Isoda, Kyoji Inukai, Youichi Murakami, Yasuyuki Wakahara, Masami Niimi, Ryoichi Honbo
Life of this patent
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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 μm or under is added to a Pb-less brush body comprising graphite, copper and a metal sulfide solid lubricant of a copper-graphite brush.
Claims4
A copper-graphite brush comprising a brush body to which a metal sulfide solid lubricant is added and an outer terminal connected with said brush body characterized in that
- a copper-zinc alloy is added to at least one member of said brush body and a connection part between said brush body and said outer terminal.
Dependencies are inferred from the claim text.