Patents by Inventor William John Raphael

William John Raphael 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).

  • Patent number: 7116524
    Abstract: An actuator assembly and method for orienting a head over a disc within a multi-disc servo-track writer incorporates an actuator block, rotational air bearing, translational air bearing, adaptor plate, E-block and actuator arm/head assembly. Rotation of the E-block, and hence actuator arm/head assembly, is directly controlled by the movement of the rotational air bearing, which is rotated by a motor. The air bearing provides for reduced friction and, as a result, decreased eccentricity of the head as compared to related art configurations. A translational air bearing laterally positions the actuator assembly within the multi-disc servo-track writer for servo-track recording.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: October 3, 2006
    Assignee: Seagate Technology LLC
    Inventors: Lon Richard Buske, Rodney Dale Dahlenburg, Joel Daniel Phillips, William John Raphael, Thomas Henry Sexton, Mark August Toffle, Brent Melvin Weichelt, Jason Paul Zimmerman
  • Patent number: 6900968
    Abstract: Apparatus and method for orienting a head over a disc within a multi-disc servo-track writer preferably uses two gas bearings, an adaptor plate, and an actuator assembly including an E-block and arm/head assembly. Rotation of the E-block, and hence actuator arm/head assembly, can be controlled by the movement of a rotational gas bearing, which is rotated by a motor. The gas bearing provides for reduced friction and, as a result, decreased eccentricity of the head as compared to related art configurations. A translational gas bearing can be used for laterally positioning the actuator assembly for servo track recording.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: May 31, 2005
    Assignee: Seagate Technology LLC
    Inventors: Lon Richard Buske, Rodney Dale Dahlenburg, Joel Daniel Phillips, William John Raphael, Thomas Henry Sexton, Mark August Toffle, Brent Melvin Weichelt, Jason Paul Zimmerman
  • Publication number: 20040145833
    Abstract: An actuator assembly and method for orienting a head over a disc within a multi-disc servo-track writer incorporates an actuator block, rotational air bearing, translational air bearing, adaptor plate, E-block and actuator arm/head assembly. Rotation of the E-block, and hence actuator arm/head assembly, is directly controlled by the movement of the rotational air bearing, which is rotated by a motor. The air bearing provides for reduced friction and, as a result, decreased eccentricity of the head as compared to related art configurations. A translational air bearing laterally positions the actuator assembly within the multi-disc servo-track writer for servo-track recording.
    Type: Application
    Filed: January 13, 2004
    Publication date: July 29, 2004
    Applicant: Seagate Technology LLC
    Inventors: Lon Richard Buske, Rodney Dale Dahlenburg, Joel Daniel Phillips, William John Raphael, Thomas Henry Sexton, Mark August Toffle, Brent Melvin Weichelt, Jason Paul Zimmerman
  • Patent number: 6614626
    Abstract: An apparatus is described which reduces flow-induced disturbances of the head. A disc drive assembly is provided which includes a basedeck and top cover. A spindle motor mounted to the basedeck which rotates around a central axis; at least one magnetic storage disc mounted to the spindle motor for rotation around the central axis and an actuator arm assembly. The actuator arm assembly includes an actuator arm rotatably attached to a pivot axis and a suspension arm attached to a distal end of the actuator arm. A magnetic transducing head is attached to the suspension. The head is used to read and write data to the magnetic storage disc. Finally, a leading surface portion of the actuator arm utilizes several turbulence-reducing portions laterally recessed so as to guide an airflow to reduce a flow-induced disturbance acting on the transducing head.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: September 2, 2003
    Assignee: Seagate Technology LLC
    Inventors: William John Raphael, Carl Fred Adams, Nigel Frank Misso, Kenny Troy Coker, Eldon L Nelson
  • Publication number: 20020181160
    Abstract: Apparatus and method for orienting a head over a disc within a multi-disc servo-track writer preferably uses two gas bearings, an adaptor plate, and an actuator assembly including an E-block and arm/head assembly. Rotation of the E-block, and hence actuator arm/head assembly, can be controlled by the movement of a rotational gas bearing, which is rotated by a motor. The gas bearing provides for reduced friction and, as a result, decreased eccentricity of the head as compared to related art configurations. A translational gas bearing can be used for laterally positioning the actuator assembly for servo track recording.
    Type: Application
    Filed: January 2, 2002
    Publication date: December 5, 2002
    Inventors: Lon Richard Buske, Rodney Dale Dahlenburg, Joel Daniel Phillips, William John Raphael, Thomas Henry Sexton, Mark August Toffle, Brent Melvin Weichelt, Jason Paul Zimmerman
  • Publication number: 20020154449
    Abstract: An apparatus is described which reduce flow-induced disturbances of the head. A disc drive assembly is provided which includes a basedeck and top cover. A spindle motor mounted to the basedeck which rotates around a central axis; at least one magnetic storage disc mounted to the spindle motor for rotation around the central axis and an actuator arm assembly. The actuator arm assembly includes an actuator arm rotatably attached to a pivot axis and a suspension arm attached to a distal end of the actuator arm. A magnetic transducing head is attached to the suspension. The head is used to read and write data to the magnetic storage disc. Finally, leading surface portion of the actuator arm utilizes several turbulence-reducing portions laterally recessed so as to guide an airflow to reduce a flow-induced disturbance acting on the transducing head.
    Type: Application
    Filed: December 28, 2001
    Publication date: October 24, 2002
    Inventors: William John Raphael, Carl Fred Adams, Nigel Frank Misso, Kenny Troy Coker, Eldon L. Nelson