Abstract: The present invention relates to a system and method for sensing the angular position of a rotatable member. The system and method employ the use of a composite rotatable member comprising a solidifiable material and a magnetically attractable particulate material. The rotatable member has a major body portion and at least one magnetically detectable reference point. The reference point has a first magnetic property and the major body portion has a second magnetic property, different from the first magnetic property. A magnetic property sensor is fixed relative to the rotatable member to detect the passage of the reference point within the rotatable member. The sensor produces a signal in response to the passage of the reference point. A central processing unit is provided for determining the angular position of the rotatable member in response to the signal generated by the sensor.

Abstract: A retaining clip includes a cantilever arm which engages an exterior tab affixed to the outer surface of the retaining clip. The inner surface of the cantilever arm and the outer surface of the engaging tab both include a number of serrated catches. The catches are situated such that the inner surface catches of the cantilever arm are opposing the outer surface catches of the engaging tab. When the retaining clip is engaged, the serrated catches form a secure mesh. The retaining clip also includes a latch which further secures the engaged clip while also providing a means of unfastening the clip without specialized tools.