Abstract:
Systems and methods for providing adsorptive surface coatings on internal components of a storage drive to adsorb contaminants are provided. One such system relates to a storage device including a magnetic media configured to store information, a head configured to read information from the media and to write information to the media, and at least one internal component selected from the group consisting of an internal surface of a housing of the storage device, a recirculation filter, an anti-disk, an actuator arm for moving the head, and a voice coil motor, where a contaminant adsorptive coating is disposed on a portion of the at least one internal component, where the contaminant adsorptive coating is configured to bond with preselected contaminants.
Abstract:
A novel disk drive includes a hermetically sealed helium-filled enclosure that has an opening extending through the disk drive base. A laminated electrical connector is disposed inside the enclosure, spans the opening, and is accessible from outside the disk drive base via the opening. The laminated electrical connector has an adhesive layer that is adhered to the disk drive base continuously around the opening, and that has a hole therethrough that is aligned with the opening. The laminated electrical connector includes electrically conductive traces that are electrically connected to the actuator flex cable, and a first insulative layer that is disposed on the trace layer. The laminated electrical connector has a metal foil sealing layer that continuously spans and completely covers the opening, and that has no holes therethrough that are aligned with the opening. The metal foil sealing layer overlaps the adhesive layer continuously around the opening.
Abstract:
A faucet includes a body with a first fluid inlet, a second fluid inlet, an outlet and a neck portion with a central cavity defined therein, a mixing chamber positioned within the central cavity of the neck portion of the body, a timing mechanism coupled to the mixing chamber and an operating handle coupled to the timing mechanism that is movable along a longitudinal axis from a closed position to an open position. The mixing chamber is rotatable about the longitudinal axis and includes a first inlet port and a second inlet port in fluid communication with the first and second fluid inlets of the body, respectively, and an outlet port in fluid communication with the outlet of the body. The operating handle is rotated about the longitudinal axis to determine a fluid temperature and pressed down along the longitudinal axis to the open position, thereby causing fluid flow through the outlet of the body and, upon release of the operating handle, the timing mechanism causes the operating handle to return to the closed position after a predetermined period of time, thereby stopping fluid flow through the outlet of the body.
Abstract:
A disk drive having a spindle motor and a head stack assembly. The spindle motor has a spindle motor hub having an axis of rotation. The spindle motor has a magnet radially attached about the spindle motor hub. The spindle motor has a spindle motor stator having a stator rim and a plurality of stator teeth arrayed about and internally extending from the stator rim towards the axis of rotation. The stator teeth are fit about the magnet in operable communication therewith for rotating the spindle motor hub. At least one of the stator teeth is a bare stator tooth and the head stack assembly pivots over the bare stator tooth. In another embodiment a reduced winding height stator tooth is provided with head stack assembly pivoting over the reduced winding height stator tooth.
Abstract:
A spindle motor for use in a disk drive having a rotatable head stack assembly. The spindle motor has a spindle motor hub having an axis of rotation. The spindle motor has a magnet radially attached about the spindle motor hub. The spindle motor has a spindle motor stator having a stator rim and a plurality of stator teeth arrayed about and internally extending from the stator rim towards the axis of rotation. The stator teeth being are to fit about the magnet in operable communication therewith for rotating the spindle motor hub. Two respective ones of the stator teeth are spaced apart along the stator rim to allow the head stack assembly to pivot between the two respective ones of the stator teeth.
Abstract:
A spindle motor for use in a disk drive having a rotatable head stack assembly. The spindle motor has a spindle motor hub. The spindle motor further has a magnet radially attached about the spindle motor hub. The spindle motor further has a spindle motor stator. The spindle motor has a stator rim. The spindle motor stator further has a plurality of stator teeth arrayed about and internally extending from the stator rim. The stator teeth are sized to fit about the magnet in operable communication therewith for rotating the spindle motor hub. The stator teeth have laminate layers. The stator teeth have a least one reduced height stator tooth having fewer laminate layers than a remainder of the stator teeth. The reduced height stator tooth is positionable adjacent the head stack assembly for allowing the head stack assembly to pivot over the reduced height stator tooth.
Abstract:
Disclosed herein are disk drive spindle motors and disk drives using same that include one of more structures that function as travel limit stops that are designed to transfer the load created by a shock impulse to non-essential mechanical features and bypass the bearing structures, thereby keeping the load imposed thereon by the shock impulse below damaging levels. The spindle motor may also include one or more compliant members between the bearing structures and facing surfaces. Such compliant members may be combined with pre-load keepers that preload the bearings by axially compressing the compliant members.
Abstract:
A disk drive includes a disk drive base, a spindle motor, a first disk and a disk clamp. The rotary hub of the spindle motor includes a generally cylindrically-shaped hub wall and a hub flange including an inner annular surface adjacent to the hub wall, an outer annular surface and a flange land portion integrally formed with the hub flange. The land portion is positioned between the annular surfaces and defines a disk contact surface projecting above the annular surfaces, the disk contact surface being substantially centered on the hub flange. The first disk is supported by the disk contact surface to form a clearance between the annular surfaces and the first disk. A second disk may be coupled to the spindle motor and an annular disk spacer may be positioned between the disks. The annular disk spacer includes a first spacer surface facing the first disk and a second spacer surface facing the second disk. The first and second spacer surfaces each comprise an inner annular spacer surface adjacent to the hub wall, an outer annular spacer and a spacer land portion integrally formed with the spacer and positioned between the annular spacer surfaces to define a spacer-to-disk contact surface that projects from the annular spacer surfaces to form a clearance between a respective disk and respective annular surfaces. The disk clamp for applies a clamping force to the first and second disks that is substantially centered on each spacer-to-disk contact surface and on the disk contact surface.
Abstract:
A disk drive includes an enclosure that has a breather port therethrough. A first labyrinth path may be disposed inside the disk drive enclosure, in fluid connection with the breather port. A second labyrinth path may be temporarily disposed outside the disk drive enclosure, in fluid connection with the breather port. An alternative gas such as helium may be allowed to bleed out through the second labyrinth path during a period of servo track writing. The second labyrinth path may be removed after servo track writing.
Abstract:
A novel disk drive includes a hermetically sealed helium-filled enclosure that has an opening extending through the disk drive base. A laminated electrical connector is disposed inside the enclosure, spans the opening, and is accessible from outside the disk drive base via the opening. The laminated electrical connector has an adhesive layer that is adhered to the disk drive base continuously around the opening, and that has a hole therethrough that is aligned with the opening. The laminated electrical connector includes electrically conductive traces that are electrically connected to the actuator flex cable, and a first insulative layer that is disposed on the trace layer. The laminated electrical connector has a metal foil sealing layer that continuously spans and completely covers the opening, and that has no holes therethrough that are aligned with the opening. The metal foil sealing layer overlaps the adhesive layer continuously around the opening.