Seagate Technology Incorporated

Mohammad Noman Ahmad

Eldon Leroy Nelson

Richard G Krum

Roy Lynn Wood

Kenneth Lee Pottebaum

Steve Scott Eckerd

David S Allsup

Jackson Wagner Nichols

Ryan T Ratliff

Chad R Harrison

An actuator with a discrete molded in bumper stop for a disc drive. The actuator has an actuator body moveably supported within the disc drive. A discrete bumper stop has an attaching portion disposed adjacent the actuator body, and an extended portion projecting from the attaching portion engageable with a reference surface of the disc drive at a selected position of the actuator. An overmold member connects the attaching portion of the bumper stop to the actuator body.

Actuator with discrete molded in bumper stop

A stationary disc separator plate for use in a disc drive to suppress turbulence near a disc drive read/write head used to read data from and write data to a rotatable disc. The stationary plate is supported adjacent the disc and has substantially circular inner and outer circumferences. A leading edge and a trailing edge of the plate define an open portion to accommodate radial movement of the head adjacent the disc. A trailing edge air dam disposed at the trailing edge of the plate diverts a substantial portion of an airflow generated by rotation of the disc away from the open portion to reduce an airflow velocity at the head. In disc drives having multiple discs, a plate is preferably disposed between each pair of adjacent discs. Air vents preferably extend through the thickness of the plate to reduce aerodynamic drag and hence power consumption by the drive.

Disc separator plate with air dam

A damper for dampening resonance created by a voice coil motor of a disc drive and transmitted to a supporting enclosure, the resonance capable of creating noise signals to the disc drive servo control system. The damper has a dampening member and a liner, the liner being a magnetically permeable member that is magnetically attracted to the voice coil motor and thereby pressingly engaging a magnet housing of the voice coil motor. In a preferred embodiment the dampening member is an acrylic polymer. In an alternative embodiment the dampening member is a fluoroelastomer. The magnet housing has characteristic features that increase the magnetic flux to the liner.

Disc drive magnet housing electro mechanical resonance dampening system

Growing community of inventors

Oklahoma City, OK, United States of America

Mohammad Noman Ahmad