Patent ID: 6524681
Filing Date: 2003-02-25
Classification: D06N,F16D,Y10T

Abstract:
A friction member comprising:a layer of material fixed to a backing, the layer of material comprising a friction surface having at least 120 precisely shaped friction composites per square centimeter, each of the precisely shaped friction composites having a cross-sectional or three dimensional shape selected from the group consisting of parallelepipeds, rectangles, cones, truncated pyramids, semicircles, circles, triangles, squares, hexagons, pyramids, octagons, and combinations thereof, wherein each of the precisely shaped friction composites further has precisely the same shape as that of a cavity on a forming tool, where each precisely shaped friction composite comprises friction particles dispersed in a binder, wherein the friction member is operatively adapted to form a portion of an apparatus for transmitting torque between two elements of a vehicle, where the apparatus is a component of the vehicle, the two elements are (i) two rotatable elements or (ii) a non-rotatable element and a rotatable element, and the friction member is operatively adapted to form a part of one of the elements that contacts and transmits torque therebetween, wherein the apparatus is selected from the group consisting of clutches, brakes, transmissions, synchronizer rings, and train tracks.