Western Digital Technologies, Inc.

Joseph A Perlas

Jambunathan Vangal-Ramamurthy

Dean Albert Tarrant

A disk clamp that can engage a disk hub to couple a disk media to a disk hub, the disk clamp having a body portion, and a groove formed in a surface of the body portion and extending at least in a circumferential direction substantially parallel to at least a portion of the circumference of the disk clamp; and a balance weight installed in the groove formed in the surface of the disk clamp, the balance weight having a quantity of material applied in the groove. A disk drive assembly using the disk hub and a method of correcting a drive imbalance using the disk hub.

Method of imbalance correction using a grooved disk clamp

A device may comprise a gripper defining a plurality of openings, each being configured to selectively receive, retain and release an item using a vacuum. One or more sensors may be associated with the plurality of openings, and may be configured to detect a faulty item received in the opening associated therewith. An item receiving structure may be configured to receive items released by the gripper when one or more of the sensors detects that one or more of the received items is faulty. An item receptacle may be configured to receive a plurality of items, and a vacuum chute may be configured to convey items received in the item receiving structure away from the gripper and into the item receptacle under a vacuum force.

Growing community of inventors

San Jose, CA, United States of America

Joseph A Perlas