Patents by Inventor Steven P. Randall

Steven P. Randall 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: 20190278790
    Abstract: A system for dynamic content delivery is provided. The system includes a control component to determine location, preferences, and state of a user. A delivery component dynamically selects and provides content to the user as a function of the user's location, preferences, and state.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 12, 2019
    Inventors: Kevin T. Shields, William T. Flora, Bret P. O'Rourke, John Mark Miller, Eric P. Wilfrid, Nigel S. Keam, Steven N. Bathiche, Oliver R. Roup, Zachary L. Russell, Jon Marcus Randall Whitten
  • Patent number: 10331708
    Abstract: A system for dynamic content delivery is provided. The system includes a control component to determine location, preferences, and state of a user. A delivery component dynamically selects and provides content to the user as a function of the user's location, preferences, and state.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: June 25, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Kevin T. Shields, William T. Flora, Bret P. O'Rourke, John Mark Miller, Eric P. Wilfrid, Nigel S. Keam, Steven N. Bathiche, Oliver R. Roup, Zachary L. Russell, Jon Marcus Randall Whitten
  • Patent number: 9917486
    Abstract: An electric motor assembly including a stator having a stator core and windings around the stator core is disclosed. The stator core has opposing ends and an outer surface extending between the opposing ends. The electric motor assembly also includes a housing having an inner surface enclosing at least a portion of the stator, and at least one fluid passage between the outer surface of the stator core and the inner surface of the housing. The fluid passage permits a coolant in the fluid passage to contact one or more portions of the outer surface of the stator core to remove heat from the stator core during operation of the electric motor assembly. Additional motor assemblies including stator and/or rotor cooling features are disclosed.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: March 13, 2018
    Assignee: Nidec Motor Corporation
    Inventors: Thomas E. Kirkley, Jr., Lawrence J. Wittman, Andrew F. Poag, Steven P. Randall
  • Patent number: 9819233
    Abstract: An electric motor is provided. A rotor sensor mechanism is operable to sense a condition of the rotor. The rotor sensor mechanism includes a target component, a radial sensor, and a sensor carrier. The target component comprises a shutter wheel fixed relative to the rotor for rotational movement therewith. The shutter wheel includes a plurality of circumferentially spaced, radially projecting radial target teeth. The radial sensor is configured to sense the target teeth. The radial sensor is at least generally axially aligned with the radial target teeth and faces radially toward the radial target teeth. The sensor carrier adjustably supports the radial sensor on the motor frame assembly so as to permit the radial sensor to be selectively positioned relative to the radial target teeth.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: November 14, 2017
    Assignee: Nidec Motor Corporation
    Inventors: Kenneth R. Friedman, Ronald W. Schmidt, Steven P. Randall
  • Publication number: 20150229187
    Abstract: An electric motor is provided. A rotor sensor mechanism is operable to sense a condition of the rotor. The rotor sensor mechanism includes a target component, a radial sensor, and a sensor carrier. The target component comprises a shutter wheel fixed relative to the rotor for rotational movement therewith. The shutter wheel includes a plurality of circumferentially spaced, radially projecting radial target teeth. The radial sensor is configured to sense the target teeth. The radial sensor is at least generally axially aligned with the radial target teeth and faces radially toward the radial target teeth. The sensor carrier adjustably supports the radial sensor on the motor frame assembly so as to permit the radial sensor to be selectively positioned relative to the radial target teeth.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 13, 2015
    Applicant: NIDEC MOTOR CORPORATION
    Inventors: Kenneth R. Friedman, Ronald W. Schmidt, Steven P. Randall
  • Publication number: 20150171699
    Abstract: An electric motor assembly including a stator having a stator core and windings around the stator core is disclosed. The stator core has opposing ends and an outer surface extending between the opposing ends. The electric motor assembly also includes a housing having an inner surface enclosing at least a portion of the stator, and at least one fluid passage between the outer surface of the stator core and the inner surface of the housing. The fluid passage permits a coolant in the fluid passage to contact one or more portions of the outer surface of the stator core to remove heat from the stator core during operation of the electric motor assembly. Additional motor assemblies including stator and/or rotor cooling features are disclosed.
    Type: Application
    Filed: February 23, 2015
    Publication date: June 18, 2015
    Applicant: NIDEC MOTOR CORPORATION
    Inventors: Thomas E. Kirkley, JR., Lawrence J. Wittman, Andrew F. Poag, Steven P. Randall
  • Patent number: 8963384
    Abstract: An electric motor assembly including a stator having a stator core and windings around the stator core is disclosed. The stator core has opposing ends and an outer surface extending between the opposing ends. The electric motor assembly also includes a housing having an inner surface enclosing at least a portion of the stator, and at least one fluid passage between the outer surface of the stator core and the inner surface of the housing. The fluid passage permits a coolant in the fluid passage to contact one or more portions of the outer surface of the stator core to remove heat from the stator core during operation of the electric motor assembly. Additional motor assemblies including stator and/or rotor cooling features are disclosed.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: February 24, 2015
    Assignee: Nidec Motor Corporation
    Inventors: Thomas E. Kirkley, Jr., Lawrence J. Wittman, Andrew F. Poag, Steven P. Randall
  • Patent number: 8916997
    Abstract: An electric motor assembly including a stator having a stator core and windings around the stator core is disclosed. The stator core has opposing ends and an outer surface extending between the opposing ends. The electric motor assembly also includes a housing having an inner surface enclosing at least a portion of the stator, and at least one fluid passage between the outer surface of the stator core and the inner surface of the housing. The fluid passage permits a coolant in the fluid passage to contact one or more portions of the outer surface of the stator core to remove heat from the stator core during operation of the electric motor assembly. Additional motor assemblies including stator and/or rotor cooling features are disclosed.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: December 23, 2014
    Assignee: Nidec Motor Corporation
    Inventors: Thomas E. Kirkley, Jr., Lawrence J. Wittman, Andrew F. Poag, Steven P. Randall
  • Publication number: 20110309697
    Abstract: An electric motor assembly including a stator having a stator core and windings around the stator core is disclosed. The stator core has opposing ends and an outer surface extending between the opposing ends. The electric motor assembly also includes a housing having an inner surface enclosing at least a portion of the stator, and at least one fluid passage between the outer surface of the stator core and the inner surface of the housing. The fluid passage permits a coolant in the fluid passage to contact one or more portions of the outer surface of the stator core to remove heat from the stator core during operation of the electric motor assembly. Additional motor assemblies including stator and/or rotor cooling features are disclosed.
    Type: Application
    Filed: June 21, 2011
    Publication date: December 22, 2011
    Inventors: Thomas E. Kirkley, JR., Lawrence J. Wittman, Andrew F. Poag, Steven P. Randall
  • Publication number: 20110309698
    Abstract: An electric motor assembly including a stator having a stator core and windings around the stator core is disclosed. The stator core has opposing ends and an outer surface extending between the opposing ends. The electric motor assembly also includes a housing having an inner surface enclosing at least a portion of the stator, and at least one fluid passage between the outer surface of the stator core and the inner surface of the housing. The fluid passage permits a coolant in the fluid passage to contact one or more portions of the outer surface of the stator core to remove heat from the stator core during operation of the electric motor assembly. Additional motor assemblies including stator and/or rotor cooling features are disclosed.
    Type: Application
    Filed: July 29, 2011
    Publication date: December 22, 2011
    Inventors: Thomas E. Kirkley, JR., Lawrence J. Wittman, Andrew F. Poag, Steven P. Randall
  • Patent number: 7012350
    Abstract: A switched reluctance machine includes a stator with a plurality of circumferentially-spaced stator segment assemblies that include salient stator poles and inter-polar stator slots. Each of the stator segment assemblies includes a stack of stator plates forming a stator segment core, an end cap assembly, and winding wire wound around the stator segment core and the end cap assembly. The rotor defines a plurality of rotor poles. The rotor tends to rotate relative to the stator to maximize the inductance of an energized winding. A drive circuit energizes the winding wire around the stator segment assemblies based on a rotational position of the rotor. Each stator plate includes a first radially outer rim section and a tooth section that extends radially inwardly from a first center portion of the first radially outer rim section.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: March 14, 2006
    Assignee: Emerson Electric Co.
    Inventors: C. Theodore Peachee, Donald J. Williams, James A. Wafer, Marielle Piron, Steven P. Randall, Richard S. Wallace, Jr., Michael L. McClelland
  • Patent number: 6897591
    Abstract: A sensorless switched reluctance machine includes a stator with a plurality of circumferentially-spaced stator segment assemblies that include salient stator poles and inter-polar stator slots. Each of the stator segment assemblies includes a stack of stator plates forming a stator segment core, an end cap assembly, and winding wire wound around the stator segment core and the end cap assembly. The rotor defines a plurality of rotor poles. The rotor tends to rotate relative to the stator to a rotational position that maximizes the inductance of an energized winding. A sensorless drive circuit derives rotor position and energizes the winding wire around the stator segment assemblies based on the derived rotor position. Each stator plate includes a first radially outer rim section and a tooth section that extends radially inwardly from a first center portion of the first radially outer rim section.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 24, 2005
    Assignee: Emerson Electric Co.
    Inventors: C. Theodore Peachee, Donald J. Williams, James A. Wafer, Marielle Piron, Steven P. Randall, Richard S. Wallace, Jr., Michael L. McClelland
  • Patent number: 6700284
    Abstract: A fan assembly includes a fan housing and a fan. A switched reluctance fan motor is mounted in an inlet of the fan housing and includes a shaft that is connected to the fan. The switched reluctance fan motor includes a stator with a plurality of circumferentially-spaced stator segment assemblies that include a stator segment core. Winding wire is wound around the stator segment core. A rotor tends to rotate relative to the stator to a rotational position that maximizes the inductance of an energized winding. A drive circuit energizes the winding wire around the stator segment assemblies based on the rotational position of the rotor. End cap assemblies are connected to opposite axial ends of the stator segment core. The end cap assemblies define an annular channel for receiving the winding wire and for preventing winding creep.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: March 2, 2004
    Assignee: Emerson Electric Co.
    Inventors: Donald J. Williams, Steven P. Randall, Craig E. Wallace
  • Patent number: 6584813
    Abstract: A washing machine includes a tub that is rotated by a switched reluctance motor. The tub includes an outer tub and an inner tub. The drive is a direct drive or a drive assembly that includes a shaft, a belt and a spinner pulley connected to the tub. The switched reluctance motor includes a stator with a plurality of circumferentially-spaced stator segment assemblies. Winding wire is wound around a stator segment core of the stator segment assemblies. A rotor is connected to the shaft that drives the belt and rotates the spinner pulley. A drive circuit energizes the winding wire around the stator segment assemblies based on a rotational position of the rotor. End cap assemblies are connected to opposite axial ends of the stator segment core. The end cap assemblies define an annular channel for receiving the winding wire and for preventing winding creep.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: July 1, 2003
    Assignee: Emerson Electric Co.
    Inventors: C. Theodore Peachee, Donald J. Williams, Steven P. Randall
  • Publication number: 20020134118
    Abstract: A washing machine includes a tub that is rotated by a switched reluctance motor. The tub includes an outer tub and an inner tub. The drive is a direct drive or a drive assembly that includes a shaft, a belt and a spinner pulley connected to the tub. The switched reluctance motor includes a stator with a plurality of circumferentially-spaced stator segment assemblies. Winding wire is wound around a stator segment core of the stator segment assemblies. A rotor is connected to the shaft that drives the belt and rotates the spinner pulley. A drive circuit energizes the winding wire around the stator segment assemblies based on a rotational position of the rotor. End cap assemblies are connected to opposite axial ends of the stator segment core. The end cap assemblies define an annular channel for receiving the winding wire and for preventing winding creep.
    Type: Application
    Filed: March 26, 2001
    Publication date: September 26, 2002
    Inventors: C. Theodore Peachee, Donald J. Williams, Steven P. Randall
  • Publication number: 20020135255
    Abstract: A fan assembly includes a fan housing and a fan. A switched reluctance fan motor is mounted in an inlet of the fan housing and includes a shaft that is connected to the fan. The switched reluctance fan motor includes a stator with a plurality of circumferentially-spaced stator segment assemblies that include a stator segment core. Winding wire is wound around the stator segment core. A rotor tends to rotate relative to the stator to a rotational position that maximizes the inductance of an energized winding. A drive circuit energizes the winding wire around the stator segment assemblies based on the rotational position of the rotor. End cap assemblies are connected to opposite axial ends of the stator segment core. The end cap assemblies define an annular channel for receiving the winding wire and for preventing winding creep.
    Type: Application
    Filed: March 26, 2001
    Publication date: September 26, 2002
    Inventors: Donald J. Willliams, Steven P. Randall, Craig E. Wallace
  • Publication number: 20020135254
    Abstract: A sensorless switched reluctance machine includes a stator with a plurality of circumferentially-spaced stator segment assemblies that include salient stator poles and inter-polar stator slots. Each of the stator segment assemblies includes a stack of stator plates forming a stator segment core, an end cap assembly, and winding wire wound around the stator segment core and the end cap assembly. The rotor defines a plurality of rotor poles. The rotor tends to rotate relative to the stator to a rotational position that maximizes the inductance of an energized winding. A sensorless drive circuit derives rotor position and energizes the winding wire around the stator segment assemblies based on the derived rotor position. Each stator plate includes a first radially outer rim section and a tooth section that extends radially inwardly from a first center portion of the first radially outer rim section.
    Type: Application
    Filed: March 26, 2001
    Publication date: September 26, 2002
    Inventors: C. Theodore Peachee, Donald J. Williams, James A. Wafer, Marielle Piron, Steven P. Randall, Richard S. Wallace, Michael L. McClelland
  • Publication number: 20020125782
    Abstract: A switched reluctance machine includes a stator with a plurality of circumferentially-spaced stator segment assemblies that include salient stator poles and inter-polar stator slots. Each of the stator segment assemblies includes a stack of stator plates forming a stator segment core, an end cap assembly, and winding wire wound around the stator segment core and the end cap assembly. The rotor defines a plurality of rotor poles. The rotor tends to rotate relative to the stator to maximize the inductance of an energized winding. A drive circuit energizes the winding wire around the stator segment assemblies based on a rotational position of the rotor. Each stator plate includes a first radially outer rim section and a tooth section that extends radially inwardly from a first center portion of the first radially outer rim section.
    Type: Application
    Filed: March 12, 2001
    Publication date: September 12, 2002
    Inventors: C. T. Peachee, Donald J. Williams, James A. Wafer, Marielle Piron, Steven P. Randall, Richard S. Wallace, Michael L. McClelland
  • Patent number: 5877568
    Abstract: An improved rotor position sensing system for detecting the angular position of the rotor of a rotating machine with respect the stator of the machine that includes a shutter that is affixed to the rotor, a sensor board holder that is positioned within the stator such that it has known orientation with respect to the stator, and a sensor board including rotor position sensors that is positioned within the sensor board holder such that it has a known orientation with respect to the holder.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: March 2, 1999
    Assignee: Emerson Electric Co.
    Inventors: Gregory R. Maes, Raymond D. Heilman, James L. Skinner, Steven P. Randall
  • Patent number: 5726516
    Abstract: A rotor assembly for a reluctance machine is disclosed in which the rotor assembly comprises a stack of rotor laminations having a plurality of rotor poles defining interpole regions. The rotor assembly also comprises a cage including an end plate and support bars, which may be electrically conductive, that are axially aligned within the interpolar regions that lie between adjacent rotor poles. When the support bars are electrically conductive, the support bars can become transient "flux blockers" as the rotor assembly rotates past a stator pole, blocking the flow of flux through the interpole regions and improving the performance of the motor.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 10, 1998
    Assignee: Switched Reluctance Drives, Ltd.
    Inventor: Steven P. Randall