Seagate Technology Incorporated

Cheung Woh Technologies Ltd.

Wolfgang Rosner

Neal Frank Gunderson

Riyan Alex Mendonsa

Brett Robert Herdendorf

Krishnan Subramanian

David Lapp

Timothy Edward Langlais

Joseph H Sassine

Hany Michael Gross

Kurt LeRoy Erickson

Jonathan Lewis Kemnitz

Edward Charles Gage

Ronald Eldon Anderson

Andrew Robert Motzko

David G Fitzgerald

Law Kung Ying

Jeffrey James Croxall

Robert Mitchell Gibbs

Steven L Weber

Krithika Kalyanasundaram

Sonia Marrero

Kok Chai Low

Scott Vogel Mitzner

Edward J Seibert

Loh Yut Chai

Connector devices or connectors for use in interconnection to a circuit board may be configured in an open or closed configuration. The connectors devices may utilize a shape memory alloy (SMA) actuator to move clamping portions with respect to each other into one or both of the open or closed positions.

Connectors using shape memory alloy

A data storage device includes a base, a shaft that extends perpendicular from the base, and a head stack assembly (HSA) having a first end to which a head is coupled and a second end that is movably mounted on the shaft. The data storage device also includes either a first actuator assembly or a second actuator assembly. The first actuator assembly includes a first coil-permanent magnet assembly that rotatably moves the HSA about the shaft, and a second coil-permanent magnet assembly that serves as a first elevator to linearly move the HSA along the shaft. The second actuator assembly includes a third coil-permanent magnet assembly that rotatably moves the HSA about the shaft, and a second elevator that linearly moves the HSA along the shaft and also moves a data storage device ramp in unison with the HSA.

Actuators for an elevator drive

A data storage device includes at least one data storage disc, at least one head supported by a rotatable actuator arm, an elevator configured to move the rotatable actuator arm in a z direction, a first vertical guide post, a ramp assembly configured to support the head on a movable ramp, and a bracket attached to the movable ramp. The at least one head is configured to communicate with the at least one data storage disc when positioned over the at least one data storage disc. The movable ramp is moveable in a z direction parallel to the first vertical guide post. The bracket is engageable to the rotatable actuator arm so that the bracket moves along the first vertical guide post in unison with z direction motion of the rotatable actuator arm via the elevator, and the bracket is disengageable from the rotatable actuator arm.

Movable ramp with arm engaging bracket for an elevator drive on a magnetic disc recording device

A brake crawler for an elevator-type hard disk drive generally includes a first and second set of clamp arms vertically arranged, each of the first and second sets of clamp arms being capable of exerting a clamping force on a shaft or slider via activation or deactivation of an actuator element associated with each set of clamp arms. The brake crawler further includes an actuator element disposed between the first and second set of clamp arms which allows for movement of the first set of clamp arms away from the second set of clamp arms upon a change in state of the actuator element. Via a specific sequence of activating and deactivating various of the actuator elements associated with the brake crawler, the brake crawler is capable of inch worm-type movement up and down the shaft.

Brake crawler for elevator-type hard disk drives

A data storage device includes at least one head supported by an actuator arm. The at least one head interacts with the at least one data storage disc when positioned over the at least one data storage disc. The data storage device further includes a split ramp for supporting the at least one head when the at least one head is moved away from the at least one data storage disc. The split ramp has a first ramp portion adjacent to a first outer diameter (OD) of the at least one data storage disc and a second ramp portion adjacent to the first ramp portion, such that the first ramp portion is between the second ramp portion and the first OD. At least one of the first ramp portion or the second ramp portion is independently moveable.

Split ramp for data storage devices

An apparatus is provided, including a base-deck floor; a base-deck frame, overlying the base-deck floor; a top cover, overlying the base-deck frame; and an affixing means operable to attach the base-deck frame to the base-deck floor, wherein the base-deck frame is operable to be fastened to both the base-deck floor and the top cover to provide a housing for a hard disk drive. A method is also provided, including assembling at least a portion of a hard disk drive assembly on a base-deck floor; affixing a base-deck frame to the base-deck floor; and securing a top cover to the base-deck frame.

Multipiece deck for hard disk drive

A hard drive includes a base deck with sidewalls to define a cavity. The hard drive further includes a weld lip that is positioned along and extends from the sidewalls. The weld lip includes a thermal choke that is configured to reduce heat transfer from the weld lip to the sidewalls.

Methods and devices for sealing hard drives

Certain exemplary aspects of the present disclosure are directed towards an apparatus in which a base deck and a forged base deck cover are coupled to one another, via a weld joint, to provide a hermetically sealed cavity within. The base deck includes an outer region, and the base deck cover includes a lip that interfaces with the outer region of the base deck to provide the weld joint. Similarly, the base deck is formed by an outer region of a base deck bottom portion interfacing with a lip of the shroud to form, via welding, the base deck.

Apparatus with sealed cavity formed by at least one impermeable weld

The present invention is directed to a printed circuit board assembly having a circuit board with opposing side edges and an open frame housing with parallel mounting frames extending along the side edges of the circuit board. Each mounting frame has a body portion having a support shelf and an overhang ledge forming a channel, the channel nesting an associated side edge of the circuit board. A mounting peg is supported to extend transversely to the entry of the channel, and temporary deforming of the ledge permits entry of the associated side edge into the channel, the circuit board having a complementary peg retention hole appropriately sized to receive the mounting peg.

PCBA low cost snap-on frame mount

Various embodiments of the present invention are directed to a printed circuit board assembly having a circuit board with opposing side edges and an open frame housing that has first and second parallel elongated mounting frames extending along the respective side edges of the circuit board. Each mounting frame has an elongated body portion forming a channel extending the length of the body, the channel serving to nest one of the side edges of the circuit board. The body of each mounting frame has one or more sets of orthogonally disposed, intersecting mounting holes that permit use of mounting holes to accommodate screws for attaching the mounting frames in a rack frame of a host system so that the circuit board is optionally supported in a side attached mode or in a bottom attached mode.

PCBA low cost frame mount

An electrical feedthrough is provided to establish an electrical conduction path from an interior of a hermetically sealed housing to an exterior environment. The feedthrough comprises an elongated electrically conductive pin having opposing proximal and distal ends and a medial portion configured to be supported within a corresponding aperture in a first housing member. A first cantilevered spring contact is affixed to and projects from a selected one of the proximal and distal ends of the pin. Preferably, a second cantilevered spring contact is further affixed to and projects from the remaining one of the proximal and distal ends of the pin. A plurality of feedthroughs are preferably affixed through an insertion member to form a feedthrough assembly which is then affixed adjacent an aperture in the first housing member. An insulating member in the plate preferably supports and isolates a pair of the pins to transmit a differential signal.

Electrical feedthrough in a hermetically sealed data storage device

A hermetically sealed housing such as for use in a data storage device. The housing is formed from a pair of opposing, substantially planar first and second housing members. A gasket seal is compressed between the housing members to form a hermetic seal. A compression limit spacer limits the compression of the gasket seal to a predetermined compression level. Preferably, the gasket seal is nested within and is contactingly supported by the compression limit spacer. A plurality of fasteners secure the first and second housing members and apply a compressive force to the gasket seal. The compression limit spacer preferably comprises a plurality of discrete, spaced apart bosses through which the plurality of fasteners extend. The gasket seal preferably has a hexagonal or a c-shaped cross-sectional shape. An inert fluidic atmosphere is preferably retained within the housing.

Hermetically sealed data storage device

A hermetically sealed housing such as for use in a data storage device. Opposing first and second housing members are coupled together with respective interior surfaces in facing relationship to form a hermetically sealed interior environment. An internally mounted shaft includes a medial portion about which a rotatable article rotates, a proximal end internally supported by the first housing member, and a distal end internally supported by the second housing member. In some embodiments, at least one of the proximal and distal ends fits into a corresponding recess formed in the respective housing member. In other embodiments, at least one of the proximal and distal ends includes a cup-shaped recess which accommodates a pin that projects from the respective housing member. Layers of compliant material are preferably provided at the interfaces between the ends of the shaft and the respective housing members.

Growing community of inventors

Burnsville, MN, United States of America

Wolfgang Rosner