Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1995-11-14
1998-02-10
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360105, 360137, G11B 548, G11B 2116
Patent
active
057175446
ABSTRACT:
A pressure differential actuator latching apparatus for a disk drive device is provided. The latching apparatus includes a rotatable body portion, a rigid air vane portion and a latching trap. When a data storage disk of the disk drive is not being rotated, the latching apparatus maintains a transducer actuator assembly of the disk drive in a locked position by engaging the transducer actuator assembly in the latching trap. When the data storage disk is rotated, airflow is generated proximate to the surface of the disk, in the same direction in which the disk is rotated. The transducer actuator assembly, positioned over the surface of the disk, blocks the airflow. The blockage of airflow creates an area of low pressure just downstream of the actuator assembly. The latching apparatus is disposed in a space between the edge of the data storage disk and walls of the housing so that the air vane portion is positioned between the areas of low and ambient pressure. The pressure difference integrated over the surface of the air vane portion exerts a force on the air vane portion at a distance from a pivot, rotating the latching apparatus towards the edge of the disk to release the actuator assembly from the latching trap. Once disk rotation stops, the air vane portion returns to its original position and the latching trap engages the actuator assembly in the locked position.
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Chun Debra A.
Giordana Adriana
Harrison David B.
Quantum Corporation
Tupper Robert S.
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