Patent ID: 7789601
Filing Date: 2010-09-07
Classification: A61C,B23B,Y10T

Abstract:
1. A mill blank mandrel system for securing a machinable dental blank within a dental milling machine, comprising: a mill blank mandrel comprising: a mandrel socket comprising: a locking pin having a D-shaped cross section having a flat surface joined at opposite ends to a convexly-curved surface, the locking pin being positioned within the second opening of the mandrel socket, the locking pin connected to an actuator for moving the locking pin between a receiving position and a locked position, wherein in the receiving position the locking pin allows the elongated shaft of the mill blank mandrel to be inserted into the first elongated opening of the mandrel socket and wherein in the locked position the locking pin secures the elongated shaft of the mill blank mandrel within the first elongated opening of the mandrel socket via engagement of the convexly-curved surface of the locking pin with the arcuate surface of the recess of the elongated shaft.