Abstract: Drug delivery using bio-affecting drugs, particularly with shape changing drug delivery devices. Embodiments are included for depots for delivery of a therapeutic agent that change from an elongated state ex vivo to a coil in vivo where the agent is released.

Abstract: A housing for a data storage device is configured to enhance and direct cooling airflow across heat-generating components of the data storage device with an enclosure that has an air supply opening formed in a floor portion of the enclosure and an air exhaust opening formed in a ceiling portion of the enclosure. In addition, a mounting plate for a first data storage device and a mounting plate for a second data storage device may form a vertically-oriented cavity in which a printed circuit board of the data storage device is to be installed.

Abstract: In a voice coil motor (VCM) of a disk drive, a coined feature formed on a ferromagnetic plate reduces magnetic flux leakage from a disk drive without increasing the weight of the drive or adding complexity to the manufacturing process. The coined feature is shaped and positioned to alter the path of magnetic flux lines produced by the VCM in a way that significantly reduces the flux leakage from the VCM. The coined feature may be formed without adding material to the ferromagnetic plate by the same stamping process used to fabricate the plate.

Abstract: In a voice coil motor (VCM) of a disk drive, a coined feature formed on a ferromagnetic plate reduces magnetic flux leakage from a disk drive without increasing the weight of the drive or adding complexity to the manufacturing process. The coined feature is shaped and positioned to alter the path of magnetic flux lines produced by the VCM in a way that significantly reduces the flux leakage from the VCM. The coined feature may be formed without adding material to the ferromagnetic plate by the same stamping process used to fabricate the plate.

Abstract: A latch (100) for a disk drive head positioner assembly (26) is disclosed. A latch assembly (140) is mounted on a printed circuit board (136), and is thereby disposed exteriorly of the disk drive (10?). This latch assembly (140) includes a coil (144), a first pole (148), and a second pole (156). A latch housing (104) includes a pair of blind holes (112) for receiving the poles (148, 156). The latch (100) also includes an armature (120) that is disposed within an interior space (17) of the disk drive (10?) and that is rotatably supported by the latch housing (104). This armature (120) includes a permanent magnet (124) and a stop (128). The armature (120) is rotated to either dispose the stop (128) in the path of or out of the path of a tail (32) of the head positioner assembly (26) (the latched and unlatched positions, respectively).

Abstract: The present invention is directed to a load/unload ramp assembly which is interconnectable with a base plate of a dynamic load/unload-type disk drive. The load/unload ramp assembly generally includes a load/unload ramp and at least one base plate attachment cantilever. A fastener shaft is directed past each of the base plate attachment cantilevers and into a fastener receptacle on the base plate. A fastener head simultaneously exerts a force on each of the base plate attachment cantilevers that are engaged by the head to deflect such base plate attachment cantilevers toward the base plate, to in turn dispose the load/unload ramp assembly in forcible engagement with the base plate.

Abstract: The present invention is directed to a load/unload ramp assembly which is interconnectable with a base plate of a dynamic load/unload-type disk drive. The load/unload ramp assembly generally includes a load/unload ramp and at least one base plate attachment cantilever. A fastener shaft is directed past each of the base plate attachment cantilevers and into a fastener receptacle on the base plate. A fastener head simultaneously exerts a force on each of the base plate attachment cantilevers that are engaged by the head to deflect such base plate attachment cantilevers toward the base plate, to in turn dispose the load/unload ramp assembly in forcible engagement with the base plate.

Abstract: A latch system for a removable cartridge and disk drive is provided. The cartridge is hinged at the back so as to pivot apart about an axis that is perpendicular to an axis of rotation of the disk. A pair of latches are disposed on opposing sides of the cartridge outboard of a labyrinth seal. Each of the latches includes an upper and a lower protrusion that acts as a catch that are insertable into corresponding apertures in the cartridge. The latches a spring-loaded toward a closed position. A load ramp for loading and unloading heads is fixed in the drive and contacts and engages a first latch, and a second unlatching member is fixed in the drive and contacts and engages the second latch. Employing the load ramp to unlatch one side of the cartridge conserves space within the cartridge.

Abstract: A data recording cartridge that includes a shell that protects a data recording medium from damage and from particulate contamination is disclosed. When the cartridge is in a closed position, the top shell and bottom shell form a seal to exclude particulate matter from the data recording medium. Because the seal encloses the perimeter of the data recording medium, both internally generated and external particulates do not contaminate the data recording medium. A drive for opening and operating the cartridge is also disclosed.Another aspect of the present invention includes a hub having an enlarged center hollow, and a spindle motor having a top protrusion that fits into the enlarged center hollow. A spindle motor top bearing juts into the underside of a cavity created by the protrusion, thereby more efficiently using vertical space.

Abstract: A disk hub for a removable cartridge is disclosed that has an enlarged center hollow, and a spindle motor is also disclosed that has a top protrusion that fits into the enlarged center hollow. The center hollow and protrusion have diameters at least as large as the outside diameter of a spindle motor top bearing. While the spindle motor is engaged to the hub, the top bearing projects into the center hollow, thereby efficiently using vertical space.

Abstract: An electronic controller for actuating electric wheel brakes on a towed vehicle which includes a device for sensing the electric current flowing to the towed vehicle wheel brakes. The device is operative to interrupt the flow of electric current if the current flow becomes excessive. The controller also retains gain settings if the supply of power to the controller is interrupted and has a visual display for indicating results of self-diagnostic testing.

Abstract: An electrical short circuit protection device for an electric trailer brake controller includes a fuse connected between the controller and the trailer brakes and an acoustic piezoelectric transducer connected across the fuse. Upon a short circuit fault developing in the trailer brakes, the fuse opens and the transducer generates an audio warning signal.

Abstract: An electronic brake controller for actuating electric wheel brakes of a towed vehicle which includes a sleep mode.

Abstract: A disk hub for a removable cartridge is disclosed that has an enlarged center hollow, and a spindle motor is also disclosed that has a top protrusion that fits into the enlarged center hollow. The center hollow and protrusion have diameters at least as large as the outside diameter of a spindle motor top bearing. While the spindle motor is engaged to the hub, the top bearing projects into the center hollow, thereby efficiently using vertical space.

Abstract: An electronic brake controller for actuating electric wheel brakes of a towed vehicle which includes a zero adjusting circuit for a pendulum in an inertia sensor.

Abstract: An electronic brake controller for actuating electric wheel brakes of a towed vehicle which includes a remote manual control.

Abstract: An engagement interface between a removable cartridge containing a rigid disk for storage of data and a disk drive. The cartridge includes an opening for a hub of the disk for spinning and the disk drive has a magnetic spindle with connecting mechanism for extending the spindle into contact with the hub and retracting it out of contact. The cartridge also includes a disk immobilizer to hold the disk with its hub centered in the opening when the cartridge is outside the disk drive, and a detachable mechanical interconnection between the hub and the housing to retain the hub generally centered in the opening when the disk immobilizer is deactivated as the cartridge is inserted in the disk drive but before the spindle has engaged the hub for instances when the cartridge is inserted in the disk drive with other than a vertical orientation.

Abstract: An electronic brake controller for actuating electric wheel brakes of a towed vehicle in response to actuation of the brakes of an associated towing vehicle. The brake controller includes a sensor for producing a brake control signal which is representative of the desired braking of the towed vehicle. The controller also includes a microprocessor for responsive to the brake control signal for generating an output signal for actuating the electric wheel brakes of the towed vehicle.

Abstract: An electronic brake controller for actuating electric wheel brakes of a towed vehicle in response to braking of an associated towing vehicle. The controller includes a microprocessor responsive to the braking of the towing vehicle for generating an output signal for actuating the towed vehicle brakes in accordance with a brake response curve. The brake response curve can include a non-linear portion.