Metal working – Method of mechanical manufacture – Work holding
Reexamination Certificate
2011-06-14
2011-06-14
Gates, Eric A (Department: 3726)
Metal working
Method of mechanical manufacture
Work holding
C279S002030, C279S002090, C279S002120, C279S004040, C279S043500, C279S046400, C279S130000
Reexamination Certificate
active
07958619
ABSTRACT:
A chuck holds a disk by the inside diameter with a plurality of contact surfaces at the end of fingers. Axial motion of an actuator is translated into outward radial movement of the fingers to place the contact surfaces in contact with the inside diameter of the disk. The force that is applied to the disk is limited to reduce or eliminate warping or curvature of the disk, e.g., a sleeve that surrounds the fingers can be used as a hard stop to physically limit the range of outward radial movement of the fingers.
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Gates Eric A
Martine & Penilla & Gencarella LLP
Xyratex Technology Limited
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