Top cover screw floating checker system for hard disk
AssigneeHGST Netherlands B.V.
InventorsPhatharah Siriowatana, Kullachat Supanyadecha, Sitthichai Theosungnern
Life of this patent
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Abstract
A system for cover screw float detection. The system includes a drive cradle coupled to a structure. The system also includes a moveable portion coupled to the structure. The system further includes a sensor coupled to said structure. The system additionally includes another sensor coupled to the moveable portion. Spatial separation between the another sensor and the sensor when the moveable portion is oriented in a screw float check position indicates presence of cover screw float in a disk drive disposed in the drive cradle.
Claims12
A system for cover screw float detection, said system comprising:
- a disk drive retainer coupled with a top portion of a base structure, said base structure coupled with a housing structure, said disk drive retainer configured to receive a hard disk drive with a leak test valve;
- a moveable portion coupled to said top portion of said base structure, said movable portion configured to move vertically with respect to said base structure and with respect to said housing structure;
- a sensor for screw float check coupled to a support member coupled with said base structure;
- another sensor coupled to said moveable portion, wherein spatial separation between said another sensor and said sensor when said moveable portion is oriented in a screw float check position indicates presence of cover screw float in a disk drive disposed in said drive retainer;
- and
- a leak tester coupled with said moveable portion configured to couple with said leak test valve of said hard disk drive and configured to determine if said hard disk drive is sealed, wherein said leak tester is operable during said screw float check.
A method for cover screw float detection comprising:
- receiving a disk drive with a leak test valve in a drive retainer, said drive retainer coupled with a top portion of a base structure, said base structure coupled with a housing structure;
- orienting a moveable portion coupled with said top portion of said base structure to a screw float check position, said moveable portion configured to move vertically with respect to said base portion and with respect to said housing structure;
- engaging a drive bit with an associated cover screw of said hard drive, said drive bit of a plurality of drive bits, said plurality of drive bits coupled with said moveable portion;
- and
- determining the spatial separation between a sensor for screw float check coupled with a support member coupled with said structure and another sensor coupled with said moveable portion when said moveable portion is in said screw float check position;
- and
- engaging a leak tester coupled with said movable portion with said leak test valve of said hard disk drive and determining if said hard disk drive is sealed, wherein said leak detector is operable during said screw float check.
Dependencies are inferred from the claim text.