Seagate Technology Incorporated

Joel Daniel Phillips

Mark August Toffle

Lon R Buske

Brent Melvin Weichelt

Rodney Dale Dahlenburg

Jason Paul Zimmerman

William John Raphael

Thomas Henry Sexton

An actuator assembly and method for orienting a head over a disc within a multi-disc servo-track writer incorporates an actuator block, rotational air bearing, translational air bearing, adaptor plate, E-block and actuator arm/head assembly. Rotation of the E-block, and hence actuator arm/head assembly, is directly controlled by the movement of the rotational air bearing, which is rotated by a motor. The air bearing provides for reduced friction and, as a result, decreased eccentricity of the head as compared to related art configurations. A translational air bearing laterally positions the actuator assembly within the multi-disc servo-track writer for servo-track recording.

Servo track writer with actuator vibration isolation

Apparatus and method for orienting a head over a disc within a multi-disc servo-track writer preferably uses two gas bearings, an adaptor plate, and an actuator assembly including an E-block and arm/head assembly. Rotation of the E-block, and hence actuator arm/head assembly, can be controlled by the movement of a rotational gas bearing, which is rotated by a motor. The gas bearing provides for reduced friction and, as a result, decreased eccentricity of the head as compared to related art configurations. A translational gas bearing can be used for laterally positioning the actuator assembly for servo track recording.

Multi-disc servo track writer vibration isolation method and apparatus

A disc positioning system for releasably securing a disc stack array on a spindle hub in a multi-disc writer system. The system includes a disc clamp with an axial catch and a retaining arrangement for engaging the catch. The retaining arrangement includes at least one radially movable member that engages and secures the axial catch in an engagement position and disengages the axial catch in a disengagement position.

Releasable disc clamping assembly

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Burnsville, MN, United States of America

Joel Daniel Phillips