Patents by Inventor William Marvin Dyer

William Marvin Dyer 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: 8815610
    Abstract: Magnetic nanoparticles are detected across a thin membrane that separates the nanoparticles from a magnetic sensor. The technique can be used in a medical context, in which an analyte of interest (present in a test fluid, such as blood) is attached to the membrane. Other compounds are in turn bound to the analyte, with one of these compounds including a magnetic nanoparticle that is then detected by the sensor. In this way, the analyte is detected by detecting the magnetic nanoparticle. By counting the number of magnetic nanoparticles, the concentration of the analyte in the test fluid can be determined.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: August 26, 2014
    Assignee: International Business Machines Corporation
    Inventors: David Berman, Qiu Dai, William Marvin Dyer, Wayne Isami Imaino, Alshakim Nelson
  • Patent number: 8755151
    Abstract: In one embodiment, a tape movement constraint comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates. An actuator adapted to pivot the roller bearing surface controls the lateral position of a tape. In operation, in one embodiment, the roller barrel of the roller bearing is rotated by engaging a surface of the tape roller barrel with a longitudinally moving magnetic tape. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: June 17, 2014
    Assignee: International Business Machines Corporation
    Inventors: Armando Jesus Argumedo, William Marvin Dyer, Wayne Isami Imaino, Kevin Bruce Judd
  • Patent number: 8749922
    Abstract: A tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. Other embodiments are described and claimed.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: June 10, 2014
    Assignee: International Business Machines Corporation
    Inventors: Armando Jesus Argumedo, Nhan Xuan Bui, William Marvin Dyer, Reed Alan Hancock, David Howard Flores Harper, Wayne Isami Imaino, Kevin Bruce Judd
  • Patent number: 8743508
    Abstract: A tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. Other embodiments are described and claimed.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: June 3, 2014
    Assignee: International Business Machines Corporation
    Inventors: Armando Jesus Argumedo, Nhan Xuan Bui, William Marvin Dyer, Reed Alan Hancock, David Howard Flores Harper, Wayne Isami Imaino, Kevin Bruce Judd
  • Patent number: 8619392
    Abstract: In one embodiment, a tape movement constraint comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates. An actuator adapted to pivot the roller bearing surface controls the lateral position of a tape. In operation, in one embodiment, the roller barrel of the roller bearing is rotated by engaging a surface of the tape roller barrel with a longitudinally moving magnetic tape. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: December 31, 2013
    Assignee: International Business Machines Corporation
    Inventors: Armando Jesus Argumedo, William Marvin Dyer, Wayne Isami Imaino, Kevin Bruce Judd
  • Publication number: 20130021692
    Abstract: A tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. Other embodiments are described and claimed.
    Type: Application
    Filed: July 23, 2012
    Publication date: January 24, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Armando Jesus Argumedo, Nhan Xuan Bui, William Marvin Dyer, Reed Alan Hancock, David Howard Flores Harper, Wayne Isami Imaino, Kevin Bruce Judd
  • Publication number: 20130021693
    Abstract: A tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. Other embodiments are described and claimed.
    Type: Application
    Filed: July 23, 2012
    Publication date: January 24, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Armando Jesus Argumedo, Nhan Xuan Bui, William Marvin Dyer, Reed Alan Hancock, David Howard Flores Harper, Wayne Isami Imaino, Kevin Bruce Judd
  • Publication number: 20120281308
    Abstract: In one embodiment, a tape movement constraint comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates. An actuator adapted to pivot the roller bearing surface controls the lateral position of a tape. In operation, in one embodiment, the roller barrel of the roller bearing is rotated by engaging a surface of the tape roller barrel with a longitudinally moving magnetic tape. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 8, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Armando Jesus Argumedo, William Marvin Dyer, Wayne Isami Imaino, Kevin Bruce Judd
  • Publication number: 20120281307
    Abstract: In one embodiment, a tape movement constraint comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates. An actuator adapted to pivot the roller bearing surface controls the lateral position of a tape. In operation, in one embodiment, the roller barrel of the roller bearing is rotated by engaging a surface of the tape roller barrel with a longitudinally moving magnetic tape. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 8, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Armando Jesus Argumedo, William Marvin Dyer, Wayne Isami Imaino, Kevin Bruce Judd
  • Patent number: 8270114
    Abstract: In one embodiment, a tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a roller barrel biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. Other embodiments are described and claimed.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: September 18, 2012
    Assignee: International Business Machines Corporation
    Inventors: Armando Jesus Argumedo, Nhan Xuan Bui, William Marvin Dyer, Reed Alan Hancock, David Howard Flores Harper, Wayne Isami Imaino, Kevin Bruce Judd
  • Patent number: 8228635
    Abstract: In one embodiment, a tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, the roller barrel of the roller bearing is rotated by engaging a surface of the tape roller barrel with a longitudinally moving magnetic tape. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: July 24, 2012
    Assignee: International Business Machines Corporation
    Inventors: Armando Jesus Argumedo, William Marvin Dyer, Wayne Isami Imaino, Kevin Bruce Judd
  • Patent number: 8054582
    Abstract: A tape head and bearing assembly comprises an air bearing structure having a tape bearing surface with a plurality of openings therein configured to provide a continuous air bearing of pressurized air to support a linear tape moving along a path, the air bearing being provided on only one side of the linear tape. A head slider assembly, such as an HDD-type assembly, is positioned at the opposite side of the linear tape from the tape bearing surface and is configured to be in contact with the linear tape.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: November 8, 2011
    Assignee: International Business Machines Corporation
    Inventors: David Berman, William Marvin Dyer, Wayne Isami Imaino
  • Patent number: 7869163
    Abstract: A tape head and bearing assembly comprises an air bearing structure having a tape bearing surface with a plurality of openings therein configured to provide a continuous air bearing of pressurized air to support a linear tape moving along a path, the air bearing being provided on only one side of the linear tape. A head slider assembly, such as an HDD-type assembly, is positioned at the opposite side of the linear tape from the tape bearing surface and is configured to be in contact with the linear tape.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: January 11, 2011
    Assignee: International Business Machines Corporation
    Inventors: David Berman, William Marvin Dyer, Wayne Isami Imaino
  • Publication number: 20090201608
    Abstract: In one embodiment, a tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 13, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Armando Jesus Argumedo, Nhan Xuan Bui, William Marvin Dyer, Reed Alan Hancock, David Howard Flores Harper, Wayne Isami Imaino, Kevin Bruce Judd
  • Publication number: 20090201609
    Abstract: In one embodiment, a tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, the roller barrel of the roller bearing is rotated by engaging a surface of the tape roller barrel with a longitudinally moving magnetic tape. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 13, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Armando Jesus Argumedo, William Marvin Dyer, Wayne Isami Imaino, Kevin Bruce Judd
  • Publication number: 20090052087
    Abstract: A tape head and bearing assembly comprises an air bearing structure having a tape bearing surface with a plurality of openings therein configured to provide a continuous air bearing of pressurized air to support a linear tape moving along a path, the air bearing being provided on only one side of the linear tape. A head slider assembly, such as an HDD-type assembly, is positioned at the opposite side of the linear tape from the tape bearing surface and is configured to be in contact with the linear tape.
    Type: Application
    Filed: March 26, 2008
    Publication date: February 26, 2009
    Inventors: DAVID BERMAN, William Marvin Dyer, Wayne Isami Imaino
  • Publication number: 20090052082
    Abstract: A tape head and bearing assembly comprises an air bearing structure having a tape bearing surface with a plurality of openings therein configured to provide a continuous air bearing of pressurized air to support a linear tape moving along a path, the air bearing being provided on only one side of the linear tape. A head slider assembly, such as an HDD-type assembly, is positioned at the opposite side of the linear tape from the tape bearing surface and is configured to be in contact with the linear tape.
    Type: Application
    Filed: August 23, 2007
    Publication date: February 26, 2009
    Inventors: David Berman, William Marvin Dyer, Wayne Isami Imaino
  • Patent number: 6639760
    Abstract: A mechanical linkage, including a worm gear and a worm gear support bracket, for joining a drive motor to a helical gear; it is particularly adapted for controlling a tape drive head. The worm gear head is threadably engaged with the helical gear. The shaft of the worm gear is engaged with the motor and is sufficiently flexible to operably correct misalignments between the worm gear shaft and the motor shaft. The support bracket includes a flat leaf spring which provides lateral spring force against the worm gear shaft to maintain a driving engagement between the worm gear and the helical gear, while the leaf spring is stiff in the in-plane directions of movement. The support bracket also includes a bushing, such as a C-shaped bushing or a cylindrical bushing, which provides support for the worm gear shaft against the helical gear.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: October 28, 2003
    Assignee: International Business Machines Corporation
    Inventors: William Marvin Dyer, James Howard Eaton, David Howard Flores Harper
  • Publication number: 20030128476
    Abstract: A mechanical linkage, including a worm gear and a worm gear support bracket, for joining a drive motor to a helical gear; it is particularly adapted for controlling a tape drive head. The worm gear head is threadably engaged with the helical gear. The shaft of the worm gear is engaged with the motor and is sufficiently flexible to operably correct misalignments between the worm gear shaft and the motor shaft. The support bracket includes a flat leaf spring which provides lateral spring force against the worm gear shaft to maintain a driving engagement between the worm gear and the helical gear, while the leaf spring is stiff in the in-plane directions of movement. The support bracket also includes a bushing, such as a C-shaped bushing or a cylindrical bushing, which provides support for the worm gear shaft against the helical gear.
    Type: Application
    Filed: January 7, 2002
    Publication date: July 10, 2003
    Inventors: William Marvin Dyer, James Howard Eaton, David Howard Flores Harper
  • Patent number: 6005209
    Abstract: A keyboard apparatus is provided for small and lightweight computers and the like. Keyswitches and a keyboard assembly comprise a sheet member having a plurality of key faces fixed thereon in a conventional keyboard arrangement. A plurality of cutouts are provided in the sheet member, partially surrounding each key face. A living hinge member is provided in the sheet member at one side of each key face. Each living hinge member includes a base section, an intermediate section, and a key face section. The former two and the latter two sections each interface at a living hinge. Depressing the key face causes the key face section to pivot about the living hinges to operate a corresponding set of electrical contacts, indicating operation of the key. A conventional rubber spring may transmit the pivot motion of the key face to the electrical contacts.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: December 21, 1999
    Assignee: International Business Machines Corporation
    Inventors: Winslow Scott Burleson, William Marvin Dyer, Christopher Karl Eisbach, Derek Solomon Pai, Edwin Joseph Selker