Patents by Inventor Keith D. Larson

Keith D. Larson 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: 11970111
    Abstract: A vehicular exterior rearview mirror assembly includes a mounting arm and a mirror head at one end of the mounting arm distal from an attachment portion of the mounting arm that is configured for attachment at a vehicle. A mirror reflective element is fixedly attached at the mirror head. An innermost side of the mirror reflective element is attached at a front side of an attachment plate. The mirror reflective element moves in tandem with movement of the mirror head relative to the mounting arm when the driver of the vehicle operates an electrically-operable actuator. The attachment plate includes wall structure that extends from the front side of the attachment plate and circumscribes and spans the perimeter circumferential edge of the glass substrate and does not encroach onto and does not overlap the front surface of the glass substrate of the exterior mirror reflective element.
    Type: Grant
    Filed: July 5, 2023
    Date of Patent: April 30, 2024
    Assignee: MAGNA MIRRORS OF AMERICA, INC.
    Inventors: John T. Uken, Darryl P. De Wind, Keith D. Foote, Joseph M. Mambourg, Rodney K. Blank, Mark L. Larson, Niall R. Lynam
  • Publication number: 20240125625
    Abstract: A sensor assembly for a rotary sensor is provided. The sensor assembly comprises a sensor housing, a sensor shield, and a sensor. The sensor housing defines a cavity. The sensor shield is disposed within the cavity of the sensor housing and defines a slot along a length of the sensor shield. The sensor shield is composed of a highly permeable material. The sensor is disposed within the cavity and at least a portion of the sensor is positioned within the slot of the sensor shield. The sensor comprises a printed circuit board having a plurality of sensor elements disposed along an inner circumference of the printed circuit board in a radially outward direction, and each sensor element is positioned at an equal distance from each other.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 18, 2024
    Inventors: James C. FALK, Keith D. LARSON
  • Patent number: 11898885
    Abstract: A sensor assembly for a rotary sensor is provided. The sensor assembly comprises a sensor housing, a sensor shield, and a sensor. The sensor housing defines a cavity. The sensor shield is disposed within the cavity of the sensor housing and defines a slot along a length of the sensor shield. The sensor shield is composed of a highly permeable material. The sensor is disposed within the cavity and at least a portion of the sensor is positioned within the slot of the sensor shield. The sensor comprises a printed circuit board having a plurality of sensor elements disposed along an inner circumference of the printed circuit board in a radially outward direction, and each sensor element is positioned at an equal distance from each other.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: February 13, 2024
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: James C. Falk, Keith D. Larson
  • Publication number: 20230251111
    Abstract: Methods, apparatuses and systems for providing a position sensing component are disclosed herein. An example position sensing component may comprise: a sensing coil; a moveable core disposed within the sensing coil; an oscillator circuit; and a feedback control circuit coupled to the oscillator circuit, wherein the position sensing component is configured to: maintain a fixed amplitude voltage in response to a variable current signal provided by the oscillator circuit in conjunction with the feedback control circuit, and generate an oscillator circuit output signal that is linearly proportional to a position of the moveable core with respect to the sensing coil.
    Type: Application
    Filed: April 11, 2023
    Publication date: August 10, 2023
    Inventors: Joseph M. Walling, John Jerred, Keith D. Larson, Michael Fettig, Stephen William Tillotson
  • Patent number: 11650081
    Abstract: Methods, apparatuses and systems for providing a position sensing component are disclosed herein. An example position sensing component may comprise: a sensing coil; a moveable core disposed within the sensing coil; an oscillator circuit; and a feedback control circuit coupled to the oscillator circuit, wherein the position sensing component is configured to: maintain a fixed amplitude voltage in response to a variable current signal provided by the oscillator circuit in conjunction with the feedback control circuit, and generate an oscillator circuit output signal that is linearly proportional to a position of the moveable core with respect to the sensing coil.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: May 16, 2023
    Assignee: Honeywell International Inc.
    Inventors: Joseph M. Walling, John Jerred, Keith D. Larson, Michael Fettig, Stephen William Tillotson
  • Publication number: 20220291020
    Abstract: Methods, apparatuses and systems for providing a position sensing component are disclosed herein. An example position sensing component may comprise: a sensing coil; a moveable core disposed within the sensing coil; an oscillator circuit; and a feedback control circuit coupled to the oscillator circuit, wherein the position sensing component is configured to: maintain a fixed amplitude voltage in response to a variable current signal provided by the oscillator circuit in conjunction with the feedback control circuit, and generate an oscillator circuit output signal that is linearly proportional to a position of the moveable core with respect to the sensing coil.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 15, 2022
    Inventors: Joseph M. Walling, John Jerred, Keith D. Larson, Michael Fettig, Stephen William Tillotson
  • Patent number: 11174917
    Abstract: Example systems, apparatuses and methods are disclosed for gear reduction. An example system comprises a second gear configured to be disposed in mesh with a first gear coupled to an input shaft. The system further comprises a carrier housing configured to be fixably disposed within the second gear. The system further comprises a third gear configured to be disposed within the carrier housing; a fourth gear configured to be disposed in mesh with the third gear, wherein the third gear is further configured to rotate about the fourth gear; an anti-backlash gear coupled to the fourth gear and configured to be disposed in mesh with the third gear; and a fifth gear configured to be disposed in mesh with the third gear. The second gear, the fourth gear, the anti-backlash gear, and the fifth gear are configured to be disposed along a common axis of rotation.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: November 16, 2021
    Assignee: Honeywell International Inc.
    Inventors: Keith D. Larson, John Jerred, Stephen William Tillotson, Chandra Sudhakar Gudimetla, Mahesh Basavantappa Hallikeri, Joe Walling
  • Publication number: 20210302203
    Abstract: A sensor assembly for a rotary sensor is provided. The sensor assembly comprises a sensor housing, a sensor shield, and a sensor. The sensor housing defines a cavity. The sensor shield is disposed within the cavity of the sensor housing and defines a slot along a length of the sensor shield. The sensor shield is composed of a highly permeable material. The sensor is disposed within the cavity and at least a portion of the sensor is positioned within the slot of the sensor shield. The sensor comprises a printed circuit board having a plurality of sensor elements disposed along an inner circumference of the printed circuit board in a radially outward direction, and each sensor element is positioned at an equal distance from each other.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 30, 2021
    Inventors: James C. FALK, Keith D. LARSON
  • Publication number: 20200278010
    Abstract: Example systems, apparatuses and methods are disclosed for gear reduction. An example system comprises a second gear configured to be disposed in mesh with a first gear coupled to an input shaft. The system further comprises a carrier housing configured to be fixably disposed within the second gear. The system further comprises a third gear configured to be disposed within the carrier housing; a fourth gear configured to be disposed in mesh with the third gear, wherein the third gear is further configured to rotate about the fourth gear; an anti-backlash gear coupled to the fourth gear and configured to be disposed in mesh with the third gear; and a fifth gear configured to be disposed in mesh with the third gear. The second gear, the fourth gear, the anti-backlash gear, and the fifth gear are configured to be disposed along a common axis of rotation.
    Type: Application
    Filed: March 2, 2020
    Publication date: September 3, 2020
    Inventors: Keith D. LARSON, John JERRED, Stephen William TILLOTSON, Chandra Sudhakar GUDIMETLA, Mahesh Basavantappa HALLIKERI, Joe WALLING
  • Patent number: 8136421
    Abstract: A gimbal assembly includes a gimbal mechanism, an electrical connector, and a flexible substrate. The gimbal mechanism is configured to rotate about a first rotational axis and a second rotational axis that is perpendicular to the first rotational axis. The electrical connector is coupled to, and mounted on, the gimbal mechanism. The flexible substrate is coupled to the electrical connector and is adapted to be coupled to an external circuit for electrically interconnecting the electrical connector and the external circuit.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: March 20, 2012
    Assignee: Honeywell International Inc.
    Inventors: Danial L. Kosht, Joseph M. Walling, Keith D. Larson
  • Patent number: 8033197
    Abstract: A human-machine interface assembly is implemented with a gimbal assembly that includes a roll hub, a pitch hub, and a main hub. The gimbal assembly further includes a plurality of bearings, and is mounted via a plurality of bearing sets, that are each disposed in a free floating manner. As a result, each of the bearings is self-aligning and self-adjusting when the gimbal assembly is assembled and mounted. The gimbal assembly additionally includes a plurality of integral stops that mechanically limit movement of a user interface to predetermined pitch and roll angles.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: October 11, 2011
    Assignee: Honeywell International Inc.
    Inventors: Keith D. Larson, Joseph M. Walling
  • Patent number: 7888901
    Abstract: An active human-machine interface system includes a user interface, one or more motors, one or more motor controllers, one or more electrically controllable dampers, and one or more damper controllers. The motors are coupled to the user interface and are configured, upon being energized, to supply a haptic feedback force to the user interface. The motor controllers are coupled to, and configured to selectively energize, the motors. The electrically controllable dampers are coupled to the user interface and are configured, upon being energized, to supply a damping force to the user interface. The damper controllers are in operable communication with the motor controllers and are coupled to, and configured to selectively energize, the electrically controllable dampers.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: February 15, 2011
    Assignee: Honeywell International Inc.
    Inventors: Keith D. Larson, Joseph M. Walling, John K. Tillotson
  • Patent number: 7843426
    Abstract: A human-machine interface assembly includes a user interface, a first motor, a second motor, a first sector gear, and a second sector gear. The user interface is configured to rotate about a first rotational axis and a second rotational axis that is perpendicular to the first rotational axis. The user interface is responsive to an input force to rotate about one or both of the first and second rotational axes. The first motor is disposed apart from the first rotational axis and generates a drive force about a third rotational axis that is parallel to the first rotational axis. The second motor is disposed apart from the second rotational axis and generates a drive force about a fourth rotational axis that is parallel to the second rotational axis. The first sector gear is coupled between the first motor and the user interface, and the second sector gear is coupled between the second motor and the user interface.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: November 30, 2010
    Assignee: Honeywell International Inc.
    Inventors: Keith D. Larson, Joseph M. Walling, John K. Tillotson
  • Publication number: 20090178499
    Abstract: A gimbal assembly includes a gimbal mechanism, an electrical connector, and a flexible substrate. The gimbal mechanism is configured to rotate about a first rotational axis and a second rotational axis that is perpendicular to the first rotational axis. The electrical connector is coupled to, and mounted on, the gimbal mechanism. The flexible substrate is coupled to the electrical connector and is adapted to be coupled to an external circuit for electrically interconnecting the electrical connector and the external circuit.
    Type: Application
    Filed: January 10, 2008
    Publication date: July 16, 2009
    Applicant: HONEYWELL INTERNATIONAL, INC.
    Inventors: Danial L. Kosht, Joseph M. Walling, Keith D. Larson
  • Publication number: 20090152782
    Abstract: A spring-return-to-null assembly, which may be used with various types of hand controllers or other human-machine interfaces, includes a cantilever spring and a pivot assembly. The cantilever spring is adapted to be coupled to a shaft and is configured to supply a torque thereto. The pivot assembly engages the cantilever spring and is configurable to exhibit either equal or dual spring rates, depending on the direction in which the torque is supplied to the shaft.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 18, 2009
    Applicant: HONEYWELL INTERNATIONAL, INC.
    Inventors: Keith D. Larson, Joseph M. Walling
  • Publication number: 20080115611
    Abstract: A human-machine interface assembly is implemented with a gimbal assembly that includes a roll hub, a pitch hub, and a main hub. The gimbal assembly further includes a plurality of bearings, and is mounted via a plurality of bearing sets, that are each disposed in a free floating manner. As a result, each of the bearings is self-aligning and self-adjusting when the gimbal assembly is assembled and mounted. The gimbal assembly additionally includes a plurality of integral stops that mechanically limit movement of a user interface to predetermined pitch and roll angles.
    Type: Application
    Filed: October 15, 2007
    Publication date: May 22, 2008
    Applicant: HONEYWELL INTERNATIONAL, INC.
    Inventors: Keith D. Larson, Joseph M. Walling
  • Publication number: 20080115061
    Abstract: An active human-machine interface system includes a user interface, one or more motors, one or more motor controllers, one or more electrically controllable dampers, and one or more damper controllers. The motors are coupled to the user interface and are configured, upon being energized, to supply a haptic feedback force to the user interface. The motor controllers are coupled to, and configured to selectively energize, the motors. The electrically controllable dampers are coupled to the user interface and are configured, upon being energized, to supply a damping force to the user interface. The damper controllers are in operable communication with the motor controllers and are coupled to, and configured to selectively energize, the electrically controllable dampers.
    Type: Application
    Filed: August 8, 2007
    Publication date: May 15, 2008
    Applicant: HONEYWELL INTERNATIONAL, INC.
    Inventors: Keith D. Larson, Joseph M. Walling, John K. Tillotson
  • Publication number: 20080111515
    Abstract: A human-machine interface assembly includes a user interface, a first motor, a second motor, a first sector gear, and a second sector gear. The user interface is configured to rotate about a first rotational axis and a second rotational axis that is perpendicular to the first rotational axis. The user interface is responsive to an input force to rotate about one or both of the first and second rotational axes. The first motor is disposed apart from the first rotational axis and generates a drive force about a third rotational axis that is parallel to the first rotational axis. The second motor is disposed apart from the second rotational axis and generates a drive force about a fourth rotational axis that is parallel to the second rotational axis. The first sector gear is coupled between the first motor and the user interface, and the second sector gear is coupled between the second motor and the user interface.
    Type: Application
    Filed: September 25, 2007
    Publication date: May 15, 2008
    Applicant: HONEYWELL INTERNATIONAL, INC.
    Inventors: Keith D. Larson, Joseph M. Walling, John K. Tillotson
  • Patent number: 5183933
    Abstract: Provided is a continuous process for producing 2,6-naphthalenedicarboxylic acid by the liquid phase oxidation of 2,6-dimethylnaphthalene comprising continuously adding to a reaction zone the oxidation reaction components comprising 2,6-dimethylnaphthalene, a source of molecular oxygen, a solvent comprising an aliphatic monocarboxylic acid, and a catalyst comprising cobalt, manganese and bromine components, wherein the atom ratio of manganese to cobalt is about 5:1 to about 0.3:1, the total of cobalt and manganese is at least about 0.40 weight percent based on the weight of solvent, and maintaining the contents of the reaction zone at a temperature of about 370.degree. F. to about 420.degree. F. and at a pressure sufficient to maintain at least a portion of the monocarboxylic acid in the liquid phase thereby oxidizing the 2,6-dimethylnaphthalene to 2,6-naphthalenedicarboxylic acid.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: February 2, 1993
    Assignee: Amoco Corporation
    Inventors: Jon J. Harper, George E. Kuhlmann, Keith D. Larson, Rosemary F. McMahon, Paul A. Sanchez
  • Patent number: 5113015
    Abstract: There is provided a process for recovering acetic acid from methyl acetate wherein the methyl acetate is hydrolyzed catalytically to methanol and acetic acid in the same tower or column that is used to separate the methanol from the acetic acid and the hydrolysis and separation are carried out coextensively in the vessel. The process is employed suitably in a process for the partial oxidation of a polymethylbenzene to a polycarboxylic acid in the presence of an oxidation catalyst and an acetic acid solvent.
    Type: Grant
    Filed: November 20, 1990
    Date of Patent: May 12, 1992
    Assignee: Amoco Corporation
    Inventors: David A. Palmer, Keith D. Larson, Kristi A. Fjare