Intri-plex Technologies Inc.

Adam Donald Sutton

Ryan John Schmidt

Paul Wesley Smith

Frederic C Petersen

David M Erlach

Robert J Tench

David Django Dexter

A disk clamp for clamping a plurality of disks within a disk drive has a single fastening hole located at its symmetrical center sized to pass the shaft of a screw having a head diameter larger than the fastening hole. The screw fastens the disk clamp to a motor hub supporting the plurality of disks. The disk clamp has a moat around the fastening hole, at a maximum diameter that is smaller than the head diameter of the head on the fastening screw. The moat may be circular, have spike trenches angled toward the fastening hole, or be spiral. The diameter of the spiral moat decreases in a clockwise or counterclockwise direction toward the fastening hole. The midsection of the disk which the screw head covers is biased at a negative angle toward the fastening hole forcing particles generated during assembly toward the fastening hole of the disk clamp.

Debris reducing disk clamp for disk drives

A swage mount is provided for attaching a head suspension assembly to a head actuator arm for a hard disk drive. The swage mount has a flange body with a thickness for providing clearance from the underlying disk. The swage mount may have a tip for in-plane movement. The tip may be 'T' shaped. The tip has a thickness that is greater than the thickness of the flange body for withstanding out-of-plane loads and for enhancing performance of the hard disk drive, for example, during reading/writing of data using the head. Mass properties of the swage mount, the twisting/bending yield load, modal frequency responses, and other performance metrics are analyzed to design the dimensions of the swage mount having favorable in-plane compliance and superior out-of-plane robustness.

Swage mount for hard disk drives

A disk clamp for clamping a number of magnetic hard disks within a disk drive has a plurality of balance weight holes and a coined index mark for use as a reference in balancing the hard disks after assembly. The disk clamp also has a coined profile located adjacent or around the balance weight holes in order to provide uniform circumferential clamp force by the disk clamp. The disk clamp has a profile that places the inner region of the disk clamp in the plastic deformation region at a certain specified clamping force at the center of the disk clamp.

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Pleasanton, CA, United States of America

Adam Donald Sutton