Patent ID: 7765703
Filing Date: 2010-08-03
Classification: B64F,Y10S,Y10T

Abstract:
1. A centering mandrel comprising: a tapered shaft, wherein the tapered shaft has a first end and a second end, the tapered shaft has a first diameter that increases from the first end to the second end, and wherein the first diameter has a first center; a plurality of expansion segments, wherein each of the plurality of expansion segments having an outer surface and an inner surface in which the inner surface has a tapered groove, and wherein inner surfaces of the plurality of expansion segments define a tapered channel capable of receiving the tapered shaft, and wherein outer surfaces of the plurality of expansion segments define an outer diameter having a second center corresponding to the first center; a coupling system capable of holding the plurality of expansion segments around the tapered shaft; and a bearing system coupled to the tapered shaft, wherein manipulation of the bearing system moves the plurality of expansion segments in a direction towards the second end of the tapered shaft, and wherein movement of the plurality of expansion segments towards the second end causes the outer diameter of the plurality of expansion segments to increase, while the second center is around a same location.