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US 11,146,152 B2Granted
Brush of motor for automotive electronics
AssigneeTRIS Inc.
InventorKenji Kawamata
Life of this patent
Estimating the term…
Abstract
A brush for a motor for electrical equipment in an automobile includes a main brush portion containing carbon and an abrasive having a Vickers hardness higher than or equal to 10 GPa and lower than or equal to 14 GPa. The sliding noise of the brush is reduced in the brush for a motor for electrical equipment in an automobile.
Claims6
A brush for a motor for electrical equipment in an automobile, the brush comprising:
- a main brush portion containing carbon and an abrasive having a Vickers hardness higher than or equal to 10 GPa and lower than or equal to 14 GPa;
- wherein
- the main brush portion contains a metal at a weight ratio between the carbon and the metal lower than or equal to 90:10 and higher than or equal to 40:60.
Dependencies are inferred from the claim text.