Method for production of a multi-layer carbon brush
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United States of America Patent
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Dec 18, 2007
Grant Date -
Oct 13, 2005
app pub date -
Mar 3, 2003
filing date -
Mar 4, 2002
priority date (Note) -
Expired
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Abstract
A method for production of a multi-layer carbon brush including at least two electrically-conducting functional layers made from carbon material and at least one insulation layer made from an electrically-insulating material, running between consecutive functional layers. According to the invention, the corresponding multi-layer carbon brushes and the layers with desired thickness can be produced by applying the carbon material and the electrically-insulating material in a mold in a sequence corresponding to the layer sequence of the multi-layer carbon brush for production in powder form, then pressed and finally heat-treated.
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