Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 30, 2007
Patent Application Number
11029114
Date Filed
December 31, 2004
Patent Primary Examiner
Patent abstract
An improved clutch or brake device in which at least two members are mounted for relative rotation and engagement, the members having friction material rotatable therewith, and the friction material of the members having surfaces confronting each other, characterized in that the friction material has a solid density of greater than 30% and includes an open lattice of carbon ligaments forming a network of three dimensionally interconnected cells; and a pyrolytic carbon coating on the open lattice of carbon ligaments.
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