Seagate Technology Incorporated

Bruce Joseph Oxley

Gary Frank Kelsic

Richard W Deichert

Frank William Bernett

Aaron Steve Macpherson

Robert Mitchell Gibbs

Tom Konetski

A disc drive top cover incorporates an acoustic damper having alternating constraining layer material and damping layer material. Each constraining material layer is a sheet material having a high mechanical stiffness. Each damping material layer is a visco-damping adhesive having a pre-selected maximum damping efficiency for a particular disc drive operating condition. The acoustic damper may also include a carrier layer between damping layers so that multiple layers of damping material can be incorporated between any two constraining layers.

Multilayer acoustic damper for a disc drive

An actuator assembly suitable for a disc drive with at least one rotating disc for storing information. The actuator assembly has an actuator body having a mounting opening with at least a portion of the mounting opening being threaded and a bearing cartridge having an outer surface with at least a portion of the outer surface being threaded. The bearing cartridge is threadably received within the mounting opening of the actuator body so that the actuator body is releasably secured to the bearing cartridge. A method for securing an actuator body to a bearing cartridge in an actuator assembly of a disc drive is also provided.

Threadably mountable drive actuator bearing assembly

An apparatus for accelerating and concentrating wind generated by spinning discs in a disc drive includes a stationary air vane member mounted on a disc drive base plate beneath a bottom disc. The air vane member preferably has a rib with an upper edge in a plane parallel to the plane of rotation of the disc adjacent a bottom surface of the disc and curves from the inner diameter of the disc to the outer diameter in the direction of rotation of the disc. The rib terminates adjacent a wind actuated pivoting air filter latch which holds an actuator assembly in a parked position when the drive is de-energized. This arrangement accelerates and concentrates the wind at the latch apparatus to increase wind force on the pivoting air filter latch to move the latch to an unlatched position when the rotating discs reach normal operating speed to permit the actuator to move from the parked position.

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Boulder, CO, United States of America

Bruce Joseph Oxley