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US 4,281,842 AGranted
Inner diameter chuck
OwnerDaniel P. Martininventor
Life of this patent
Estimating the term…
Abstract
An inner diameter chuck which has a cup shaped holder with a concave face joined by the interior side of the face to a base portion. The holder will flex upon movement of an actuator against the lip of the cup to change the outer diameter along the forward side portions of the cup so to allow for engagement and disengagement of a workpiece.
Claims6
A chuck for holding a workpiece with an interior recess having an interior diameter comprising a body on which is mounted a radially flexible cup shaped workpiece holder having a concave face interconnected by a side portion to and a lip, the interior of the face rigidly joined to the body;
- means for connecting the lip to actuator means, the actuator means movable axially with respect to the holder whereby the lip is moved relative to said face interior causing a radial movement of said side portion;
- an exterior of said side portion of the cup engageable in the recess of the workpiece so to rigidly join the holder to the workpiece, the holder at said side portion having an outer diameter greater than the inner diameter of the workpiece recess when in an unstressed condition with no workpiece present and where movement of the actuator means axially towards said face causes the outer diameter at said side portion to decrease until less than the inner diameter of the workpiece recess.
Dependencies are inferred from the claim text.