Patent ID: 8573369

Claim:
A carbon composite brake disc comprising: a generally annular body having an opening, an outer axial surface, an inner axial surface, a disc thickness extending axially at locations between the outer axial surface and the inner axial surface, and at least one ring extending radially from the outer axial surface to define an outermost diameter of the carbon composite brake disc, wherein the at least one ring defines a width in the direction of the disc thickness smaller than the disc thickness, wherein: the at least one ring defines the outermost diameter of the carbon composite brake disc by a radially extended axial surface that projects radially away from the outer axial surface of the carbon composite brake disc and is joined to the outer axial surface by at least one curved surface, and an outer diameter of the carbon composite brake disc, as defined at the outer axial surface of the carbon composite brake disc, excluding the portions forming the at least one ring and the at least one curved surface, is configured to remain constant between a first, unworn state and a second, fully worn state.