Patent ID: 6145849
Filing Date: 2000-11-14
Classification: B24B,Y10T

Abstract:
A disk processing chuck for holding a memory disk, the disk having a central opening and planar sides for receiving magnetic media on both of the sides, the disk being bounded by a cylindrical outside diameter peripheral edge and chamfered edges extending between each of the planar sides and the peripheral edge, said chuck comprising:a disk retainer mount including a central disk support for mounting a circular chamfered edge of the disk bounding the disk central opening and a peripheral mount edge for receiving one of the outside diameter chamfered edges of the disk;a retaining ring seated in said retainer mount, said ring including a multiplicity of spaced radial fingers extending cylindrically around said ring, each finger having a distal end extending to a first position outboard of said mount edge; andwherein the distal ends are movable inwardly to a second position into clamping contact with the outside diameter peripheral edge of a disk mounted on said retainer mount.