Seagate Technology Incorporated

Tallgrass Technologies Corporation

George Inslee Brent

Frank William Bernett

Gary Frank Kelsic

Jason A Sorrell

Dave Paul McReynolds

Aaron Steve Macpherson

Steven R Speckmann

Richard W Deichert

In accordance with various embodiments, a data storage device comprises a sealed housing which encloses a data storage medium. The sealed housing comprises a substantially planar first housing plate with respective length, width and thickness dimensions and a circumferentially extending first peripheral edge, a substantially planar second housing plate with a circumferentially extending second peripheral edge, and a circumferentially extending first sealing member contactingly disposed between the respective first and second peripheral edges. A substantially planar third housing plate extends adjacent the first planar housing plate with respective length and width dimensions substantially corresponding to the length and width dimensions of the first housing plate, and a circumferentially extending third peripheral edge. A circumferentially extending second seal member is contactingly disposed between the second and third peripheral edges to form a hermetic seal for the low density gas.

Two-stage sealing of a data storage assembly housing to retain a low density atmosphere

A disc drive includes a base plate and a structural cover removably attached to the base plate to form an internal environment within the disc drive that is filled with a low density gas such as helium. A sealing cover is permanently attached to the base plate and the structural cover to form a hermetic seal for the low density gas. A first seal secured between the base plate and the removable structural cover permits short term operation of the disc drive with minimal leakage of the low density gas so that the drive can be tested prior to permanent attachment of the sealing cover.

An actuator arm for a rotary actuator assembly of a disc drive comprises a substantially planar sheet of pliable material defining a longitudinal actuator arm having longitudinal edges, a distal end supporting the transducer, a proximal end supporting an actuator coil. Strut means integral with the sheet extends substantially normal to the plane of the sheet along at least a portion of at least one longitudinal edge and the proximal end of the arm to provide rigidity to at least a portion of the arm. In one embodiment, an integral strut portion defines a support for the actuator coil. In another embodiment, integral strut portions extend along opposite longitudinal edges to a location proximal the distal end to define a rigid portion between the strut portions and a flexible suspension region distal to the rigid portion.

Rotatable actuator arm having an integral strut

A resilient linear latch and crash stop device incorporates a magnetic latch and a linear impact absorbing crash stop into a single composite body made up of a magnet member for contacting a strike plate on the actuator arm, an energy absorbing member, and a latch base body assembled together. The energy absorbing member fastens the magnet member to the base body and absorbs impact energy in a generally linear fashion throughout the range of anticipated impact magnitudes. The energy absorbing member is a generally rectangular elastomeric bellows member formed in place and sandwiched between the magnetic mounting plate and the base body. The elastomeric bellows member has a vertically open tubular passage therethrough that preferably has a bell shaped horizontal cross sectional shape.

Latch and linear crash stop for a disc drive actuator arm

A stacked actuator assembly includes a hub having an axis of rotation, a first member fixed in a first direction along the axis of the hub, a second member fixed in a second opposite direction along the axis of a hub, an actuator arm coupled about the hub between the first and second members and a spring coupled about the hub between the first and second members. The spring axially clamps the plurality of actuator arms between the first and second members.

Spring loaded stacked actuator assembly

A mechanism for moving a magnetic read/write recording head across a tape storage medium. A linear actuator drives an output shaft which carries a cable connector. A flexible cable is connected with the cable connector at one end and at the other end with an elevator bracket which carries the recording head. The cable is bent through a 90.degree. bend between its ends along an arcuate guide surface. The elevator bracket moves up and down across the tape on guide pins. A spring maintains the cable under tension to translate horizontal extension and retraction of the actuator shaft into corresponding vertical movement of the tape head. The use of a cable reduces the application of moments to the head and avoids applying rotational forces.

Growing community of inventors

Boulder, CO, United States of America

George Inslee Brent