Adjustable mandrel
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United States of America Patent
Stats
-
Jul 19, 1988
Grant Date -
N/A
app pub date -
Oct 6, 1986
filing date -
Oct 6, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An adjustable mandrel for grasping and supporting a workpiece such as a dental retention device. The mandrel includes a stationary jaw having a body portion with a dependent grasping leg, and a movable jaw also having a body portion with a depending grasping leg. The two grasping legs are arranged to each other. A captured screw member is rotatably secured to the body portion of the stationary jaw with the body portion of the movable jaw threadingly receiving the screw member therethrough. A pair of guide rails maintain a parallel relationship between the stationary and movable jaws. As the screw member is rotated, the movable jaw moves into and out of engagement with the stationary jaw to grasp a workpiece with the grasping legs, where either external or internal surfaces of the workpiece can be grasped.
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