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US 2006/0151268 A1Published application
Copper-free non-asbestos organic friction material
OwnerSunil Kesavan, Xinming Shaoinventors
Life of this patent
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Abstract
A braking element generally including a friction material having one of iron fibers, aluminum, zinc, tin and combinations thereof. An amount of the iron fibers in the friction material is in a range between about 1 v % to about 10 v %. An amount of one of the aluminum, the zinc, the tin and the combinations thereof is in a range between about 1 v % to about 5 v %. The friction material is free of elemental copper. As the friction material wears, elemental copper is not released into the environment.
Claims21
A braking element comprising:
- a friction material including one of iron fibers, aluminum, zinc, tin and combinations thereof, wherein an amount of said iron fibers in said friction material is in a range between about 1 v % to about 10 v %, wherein an amount of one of said aluminum, said zinc, said tin and said combinations thereof is in a range between about 1 v % to about 5 v % and wherein said friction material is free of elemental copper.
A braking element comprising:
- a friction material including iron fibers, wherein an amount of said iron fibers in said friction material is in a range between about 1 v % to about 10 v % and wherein said friction material is free of copper.
A braking element comprising:
- a friction material free of elemental copper.
A braking element comprising:
- a friction material including one of aluminum, zinc, tin and combinations thereof, wherein an amount of one of said aluminum, said zinc, said tin and said combinations thereof is about 1 v % and wherein an amount of said iron fibers in said friction material is about 2.5 v % and said friction material is free of elemental copper.
Dependencies are inferred from the claim text.