Shaped Brake Disc

A disc for a vehicle disc-brake system, generally having two fixed non-rotating and opposing brake pads which, during braking, make pressurized sliding friction contact with the sides of a spinning disc in a clamping motion to slow or stop the said disc, thereby slowing or stopping the connected vehicle, with said disc comprising, on one or both sides, in the area(s) of the disc which are contacted by the brake pad(s) during braking:

• one or more raised and/or depressed generally sloping and/or arcing features of 90 degrees or less relative to the disc's flat side(s) and generally comprising a peak or peaks and/or a valley or valleys, which said features are configured to provide greater available disc/pad contact surface area than is provided by a flat disc/pad configuration;
• and
• which said sloping and/or arcing features may be, by way of example but not limited to being, in the general shape of a triangular wave, sine wave or other charted periodic function wave(s) when viewed from the said disc's mounted cross section edge view perspective;
• and
• with said raised and/or lowered feature(s) comprising a circular ridge and/or valley configuration or a series of declining concentric circular ridges and/or valleys from the disc's perimeter edge toward and relative to its rotational axis and therefore encircling the disc's centerpoint when viewed from a side surface perspective;
• and
• with said shaped features comprising an elevation differential of generally 1/32 inch to ½ inch;
• and
• with said disc being comprised as above by virtue of original construction, modification or otherwise, by cast, forge or other manufacturing or production processes, and being inclusive of any and all construction methods, modifications, and/or materials.