Patent 7216744 was granted and assigned to Sepac, Inc. on May, 2007 by the United States Patent and Trademark Office.
A disc brake which is particularly designed for arcuate travel of less than 360 degrees has pie shaped segments, i.e. segments which are not complete circles which are interleaved. Some segments are rotatable about an axis and others are stationary and have friction brake material carried on them at a position remote from the axis of rotation.