Patents by Inventor Shawn E. Casey

Shawn E. Casey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240309316
    Abstract: The specification describes a composition comprising an improved eukaryotic cell culture medium, which can be used for the production of a protein of interest. TaXULne can be added to the serum-free media or chemically-defined media to increase the production of a protein of interest. Methods for recombinantly expressing high levels of protein using the media compositions are included.
    Type: Application
    Filed: May 23, 2024
    Publication date: September 19, 2024
    Inventors: Amy S. Johnson, Meghan E. Casey, Shadia Oshodi, Shawn Lawrence
  • Publication number: 20240309315
    Abstract: The specification describes a composition comprising an improved eukaryotic cell culture medium, which can be used for the production of a protein of interest. TaXULne can be added to the serum-free media or chemically-defined media to increase the production of a protein of interest. Methods for recombinantly expressing high levels of protein using the media compositions are included.
    Type: Application
    Filed: May 23, 2024
    Publication date: September 19, 2024
    Inventors: Amy S. Johnson, Meghan E. Casey, Shadia Oshodi, Shawn Lawrence
  • Patent number: 9099163
    Abstract: A disk drive assembly including a disk drive enclosure, a damping assembly including a first mounting sheet having a first side and a second side opposite the first side, at least one elastomeric cushion attached to the second side of the first mounting sheet, wherein the first side of the first mounting sheet of the damping assembly contacts a surface of the disk drive enclosure.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: August 4, 2015
    Assignee: Western Digital Technologies, Inc.
    Inventors: Shawn E. Casey, David W. Niss
  • Patent number: 9036295
    Abstract: A novel information storage device is disclosed and claimed. The information storage device includes a device housing with a generally rectangular bay to accommodate a disk drive. The generally rectangular bay includes a base portion and a plurality of side portions. The information storage device further includes a damping insert sheet disposed between the disk drive and the base portion. The damping insert sheet has a plurality of elastomeric cushions, for example with a cushion thickness in the range 0.5 mm to 10 mm, and a spanning sheet, for example having a sheet thickness in the range 0.02 mm to 0.35 mm. Each of the plurality of elastomeric cushions is attached to the spanning sheet. Each of the plurality of elastomeric cushions contacts and is compressed between the generally rectangular bay and the disk drive.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: May 19, 2015
    Assignee: Western Digital Technologies, Inc.
    Inventors: Shawn E. Casey, Jifang Tian, Tegan Campbell, Hongqi Li, William Flynn
  • Patent number: 8705201
    Abstract: A novel information storage device is disclosed and claimed. The information storage device includes a device housing with a generally rectangular bay to accommodate a disk drive. The generally rectangular bay includes a base portion and a plurality of side portions. The information storage device further includes a damping insert sheet disposed between the disk drive and the base portion. The damping insert sheet has a plurality of elastomeric cushions, for example with a cushion thickness in the range 0.5 mm to 10 mm, and a spanning sheet, for example having a sheet thickness in the range 0.02 mm to 0.35 mm. Each of the plurality of elastomeric cushions is attached to the spanning sheet. Each of the plurality of elastomeric cushions contacts and is compressed between the generally rectangular bay and the disk drive.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: April 22, 2014
    Assignee: Western Digital Technologies, Inc.
    Inventors: Shawn E. Casey, Jifang Tian, Tegan Campbell, Hongqi Li, William Flynn
  • Publication number: 20130155545
    Abstract: A novel information storage device is disclosed and claimed. The information storage device includes a device housing with a generally rectangular bay to accommodate a disk drive. The generally rectangular bay includes a base portion and a plurality of side portions. The information storage device further includes a damping insert sheet disposed between the disk drive and the base portion. The damping insert sheet has a plurality of elastomeric cushions, for example with a cushion thickness in the range 0.5 mm to 10 mm, and a spanning sheet, for example having a sheet thickness in the range 0.02 mm to 0.35 mm. Each of the plurality of elastomeric cushions is attached to the spanning sheet. Each of the plurality of elastomeric cushions contacts and is compressed between the generally rectangular bay and the disk drive.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 20, 2013
    Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Shawn E. Casey, Jifang Tian, Tegan Campbell, Hongqi LI, William Flynn
  • Patent number: 7375929
    Abstract: An actuator for a disk drive. The actuator includes an actuator body The actuator body includes a main body section defining a horizontal plane orthogonal to an axis of rotation. The actuator body further includes an actuator arm extending from the main body section. The actuator body further includes two parallel support extensions extending from the main body section opposite the actuator arm. The support extensions cooperatively form a channel between the support extensions. The actuator body further includes a coil support tab disposed adjacent the support extensions and extending orthogonal to the horizontal plane. The actuator further includes a vertical coil defining a coil plane disposed orthogonal to the horizontal plane. The coil is disposed in mechanical communication with the support extensions and the coil support tab for supporting the coil within the channel.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: May 20, 2008
    Assignee: Western Digital Technologies, Inc.
    Inventors: Ken L. Chang, Kamran Oveyssi, Shawn E. Casey, Chaw-Wu Tseng
  • Patent number: 7180711
    Abstract: A head stack assembly for a disk drive. The head stack assembly includes an actuator body. The actuator body includes a main body section defining a horizontal plane orthogonal to an axis of rotation. The actuator body further includes an actuator arm extending from the main body section. The actuator body further includes a flex cable guiding support extending from the main body section adjacent the actuator arm orthogonal to the horizontal plane. The head stack assembly further includes a flex cable including a substantially flat main cable body disposed in mechanical communication with the flex cable guiding support in planes orthogonal to the horizontal plane parallel to the axis of rotation.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: February 20, 2007
    Assignee: Western Digital Technologies, Inc.
    Inventors: Ken L. Chang, Kamran Oveyssi, Shawn E. Casey, Chaw-Wu Tseng
  • Patent number: 7145753
    Abstract: A head stack assembly for a disk drive. The head stack assembly includes an actuator body defining an axis of rotation. The actuator body includes a main body section and a coil support portion extending from the main body section. The head stack assembly further includes an actuator coil supported by the coil support portion. The head stack assembly further includes insulated wiring extending between the actuator coil and the main body section in a direction orthogonal to the axis of rotation. The head stack assembly further includes a lateral wiring protector disposed laterally about the insulated wiring and extending from the main body section in a direction parallel to the axis of rotation. The lateral wiring protector includes an open channel with the insulated wiring disposed within the open channel.
    Type: Grant
    Filed: May 15, 2004
    Date of Patent: December 5, 2006
    Assignee: Western Digital Technologies, Inc.
    Inventors: Ken L. Chang, Kamran Oveyssi, Shawn E. Casey, Chaw-Wu Tseng
  • Patent number: 6934126
    Abstract: A disk drive comprises a housing including a base; a disk rotatably attached to the base; a printed circuit board coupled to the base and including a plurality of circuit board pads; a head stack assembly pivotally coupled to the base about a pivot axis and a flex-to-board connector. The head stack assembly includes a head for reading and writing to the disk and a flex cable assembly that includes a flexible film including a plurality of conductive traces that are electrically coupled to the head. The flexible film includes a connecting portion in which each of the plurality of conductive traces defines a trace pad. Each trace pad is disposed on a surface of the flexible film that is generally parallel to the pivot axis. The flex-to-board connector is attached to the base and is configured to couple to the connecting portion of the flexible film and to maintain the surface of the flexible film on which the trace pads are disposed in an orientation that is generally parallel to the pivot axis.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: August 23, 2005
    Assignee: Western Digital Technologies, Inc.
    Inventors: Keith R. Berding, Shawn E. Casey
  • Patent number: 6710980
    Abstract: A disk drive comprises a disk, an actuator arm, a head attached to the actuator arm, a voice coil motor, a parking latch for latching the actuator arm in a latched position in order to park the head during a non-operating mode, a post, and an inertial latch for maintaining the actuator arm in the latched position when the disk drive is subjected to a physical shock. The inertial latch comprises a body having a protruding arm and a pivot surface, wherein during the physical shock the body rotates about the pivot surface such that the protruding arm engages the actuator arm. The body of the inertial latch further comprises a strip-spring comprising a first end inserted into a first receptor and a second end inserted into a second receptor such that the strip spring has an initial arc displacement when installed into the body of the inertial latch.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: March 23, 2004
    Assignee: Western Digital Technologies, Inc.
    Inventors: Serge Hauert, Shawn E. Casey, Haldun Arin
  • Patent number: 6571460
    Abstract: An aspect of the invention can be regarded as a method of balancing a rotary actuator for use in a rotatable head stack assembly (HSA) portion in a disk drive. The rotary actuator has a pivot axis, and the rotatable HSA portion has an installed HSA portion center-of-gravity. The method provides for determining a desired rotary actuator center-of-gravity location for locating the installed HSA portion center-of-gravity along the pivot axis for mitigating acceleration of the rotary actuator about the pivot axis due to external linear acceleration experienced by the disk drive during a track-follow operation. The method further provides for measuring weight distribution characteristics of the rotary actuator to determine an actual rotary actuator center-of-gravity. The method further provides for selectively modifying weight distribution characteristics of the rotary actuator to locate the actual rotary actuator center-of-gravity at the desired rotary actuator center-of-gravity location.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: June 3, 2003
    Assignee: Western Digital Technologies, Inc.
    Inventors: Shawn E. Casey, Raffi Codilian, Roger G. Davis, Jorge Haro
  • Patent number: 6522504
    Abstract: A disk drive includes a head gimbal assembly and a disk that includes a recording surface. The head gimbal assembly comprises a load beam, the load beam including a first load beam surface facing toward the recording surface and a second load beam surface facing away from the recording surface, a plurality of conductors at least partially supported by the first load beam surface, each conductor including a proximal conductive pad, a distal conductive pad and a conductive path between the proximal and distal conductive pads, the proximal conductive pad being closer to a pivot axis than the distal conductive pad, a gimbal coupled to the load beam, the gimbal including a gimbal proximal end that supports the respective distal conductive pads and a gimbal distal end, and a head for flying above the recording surface of the disk while reading magnetic data recorded on the recording surface of the disk as the disk spins in a rotational direction.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: February 18, 2003
    Assignee: Western Digital Technologies, Inc.
    Inventor: Shawn E. Casey
  • Patent number: 6519116
    Abstract: An aspect of the invention can be regarded as an actuator arm assembly which includes an actuator arm having an actuator bore. The actuator arm is configured to pivot about an axis of rotation. The actuator bore has pivot sleeve contact areas. The actuator arm assembly includes a pivot cartridge which includes a pivot sleeve which is formed to exert compressive force radially from the axis of rotation. The pivot sleeve is formed to locally deform radially relative to the axis of rotation adjacent the pivot sleeve contact areas. The pivot cartridge includes a bearing outer race. The pivot cartridge includes a bearing gap formed between the bearing outer race and the pivot sleeve for inhibiting transfer of force between the pivot sleeve and the bearing outer race.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: February 11, 2003
    Assignee: Western Digital Technologies, Inc.
    Inventors: Chen-Chi Lin, Kamran Oveyssi, Shawn E. Casey
  • Patent number: 6502300
    Abstract: An aspect of the invention can be regarded as a method of balancing a rotary actuator for use in a rotatable head stack assembly (HSA) portion in a disk drive. The rotary actuator has a pivot axis, and the rotatable HSA portion has an installed HSA portion center-of-gravity. The method provides for deetermining a desired rotary actuator center-of-gravity location for locating the installed HSA portion center-of-gravity along the pivot axis for mitigating acceleration of the rotary actuator about the pivot axis due to external linear acceleration experienced by the disk drive during a track-follow operation. The method further provides for measuring weight distribution characteristics of the rotary actuator to determine an actual rotary actuator center-of-gravity. The method further provides for selectively modifying weight distribution characteristics of the rotary actuator to locate the actual rotary actuator center-of-gravity at the desired rotary actuator center-of-gravity location.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: January 7, 2003
    Assignee: Western Digital Technologies, Inc.
    Inventors: Shawn E. Casey, Raffi Codilian, Roger G. Davis, Jorge Haro
  • Patent number: 6462914
    Abstract: The present invention may be regarded as a disk drive comprising a disk, an actuator arm comprising a head, and a voice coil motor for actuating the actuator arm to position the head radially over the disk. The voice coil motor comprises a first magnet for generating a first magnetic flux, and a rotary voice coil yoke comprising a magnetic flux conductor shaped to form an air gap with respect to the first magnet, the magnetic flux conductor comprising a first end having a first reluctance and a second end having a second reluctance, wherein the first reluctance is substantially lower than the second reluctance such that the magnetic flux conductor guides the first magnetic flux through the air gap and through the first end. A voice coil is wrapped around at least part of the magnetic flux conductor for conducting a current to generate a second magnetic flux such that at least part of the second magnetic flux is within the air gap for interacting with the first magnetic flux.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: October 8, 2002
    Assignee: Western Digital Technologies, Inc.
    Inventors: Kamran Oveyssi, Shawn E. Casey, Jason T. Weaver, Mitchell D. Dougherty
  • Patent number: 6349464
    Abstract: A method of making a balance-compensated (BC) rotary actuator for use in a rotatable BC head stack assembly (HSA) portion in a disk drive based upon track-follow characteristics of a rotatable test HSA portion is provided. The test HSA portion includes a test rotary actuator having a test actuator weight specification. The test rotary actuator has an actuator body portion, a test pivot axis extending through the actuator body portion and a head connected to the actuator body portion. The test rotary actuator is controlled to rotate about the test pivot axis for positioning the head over a selected disk track. The test rotary actuator has a test rotary actuator center-of-gravity torque vector associated therewith about the test pivot axis. The method provides for vibrating the disk drive at a vibration frequency in order to vibrate the test HSA portion. Position error information is read using the head while performing a track-follow operation during the vibrating of the test HSA portion.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: February 26, 2002
    Assignee: Western Digital Technologies, Inc.
    Inventors: Raffi Codilian, Shawn E. Casey
  • Patent number: 6185074
    Abstract: A disk drive includes a disk drive base, a head stack assembly pivotally coupled to the disk drive base, a ramp load coupled to the disk drive base for parking the head, and an inertial latch. The head stack assembly includes a head and a coil portion coupled to the head, the coil portion defining an inner crash stop surface and an outer crash stop surface. The inertial latch includes a unitary latch base coupled to the disk drive base, an inner crash stop and an outer crash stop. The inner crash stop is integrally formed with the latch base and contacts the inner crash stop surface to limit travel of the head in a first direction during a shock event. The outer crash stop is also integrally formed with the latch base, and contacts the outer crash stop surface to limit travel of the head in a second direction during a shock event.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: February 6, 2001
    Assignee: Western Digital Corporation
    Inventors: David T. W. Wang, Shawn E. Casey
  • Patent number: 5781380
    Abstract: The invention relates to a magnetic disk drive having a head stack assembly including a rotary actuator body having a flex circuit mounting site for mounting a main actuator flex circuit and an arm extending therefrom which supports a head gimbal assembly (HGA). The invention provides for molding the conductors into the arm and the actuator body so that the conductors are strategically exposed along the flex circuit mounting side of the actuator body and along an end of the arm body which mates with the HGA.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: July 14, 1998
    Assignee: Western Digital Corporation
    Inventors: Keith R. Berding, Shawn E. Casey, Charles B. Mountain
  • Patent number: 5570250
    Abstract: A disk drive head disk assembly having a compact configuration includes an actuator assembly with an E-block mounted to a base plate through a three point mounting system. The second ridges in a generally cylindrical opening and includes means for forcing a mounting post against the first and second ridges. The E-block has a flex cable mounting surface and wedge: shape extension adapted to receive a portion of said flex cable forming an oblique angle with the flex cable mounting surface. A flex circuit is attached to the base plate and includes a ribbon-like flex cable and an L-shaped member adapted to receive the flex cable with snap-on clamps adapted for mounting the flex cable to the E-block.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: October 29, 1996
    Assignee: Western Digital Corporation
    Inventor: Shawn E. Casey