Patents by Inventor David Gordon Duff

David Gordon Duff 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: 10891850
    Abstract: Aspects of the disclosure relate to reducing replacing a desiccant cartridge based upon a condensation risk. In one example, first information corresponding to a current dew point within a sensor housing of a sensor and second information identifying temperature data corresponding to a predefined area where the sensor is projected to travel may be received. Based upon the first and second information a condensation risk corresponding to the likelihood of condensation forming within the sensor housing in the event it traveled within the predefined area based upon the current dew point and the temperature data may be determined. Based upon the determined condensation risk, an indication that a desiccant cartridge within the sensor housing should be replaced to reduce the current dew point and the condensation risk may be provided.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: January 12, 2021
    Assignee: Waymo LLC
    Inventors: Darren Xinhang Chen, David Gordon Duff, Alexander Norton Meade
  • Patent number: 10621851
    Abstract: Aspects of the disclosure relate to reducing replacing a desiccant cartridge based upon a condensation risk. In one example, first information corresponding to a current dew point within a sensor housing of a sensor and second information identifying temperature data corresponding to a predefined area where the sensor is projected to travel may be received. Based upon the first and second information a condensation risk corresponding to the likelihood of condensation forming within the sensor housing in the event it traveled within the predefined area based upon the current dew point and the temperature data may be determined. Based upon the determined condensation risk, an indication that a desiccant cartridge within the sensor housing should be replaced to reduce the current dew point and the condensation risk may be provided.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: April 14, 2020
    Assignee: Waymo LLC
    Inventors: Darren Xinhang Chen, David Gordon Duff, Alexander Norton Meade
  • Patent number: 9505348
    Abstract: Aspects of the present disclosure relate to an apparatus providing a first component having a circular opening with an interior chamfered edge and a second component positioned within the circular opening. The apparatus also provides a magnetic feature at a circular bottom surface of the first component, where the magnetic feature provides a magnetic pull force in a first direction to secure the second component within the circular opening. The second component is configured to break away from the circular opening when a contact force to the breakaway component causes a force in a second direction opposite of the first direction and greater than the magnetic pull force.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: November 29, 2016
    Assignee: Google Inc.
    Inventors: Robert Kim, Kenneth Ryan Loo, David Gordon Duff
  • Patent number: 9221397
    Abstract: Aspects of the present disclosure relate to an apparatus providing a first component having a circular opening with an interior chaffered edge and a second component positioned within the circular opening. The apparatus also provides a magnetic feature at a circular bottom surface of the first component, where the magnetic feature provides a magnetic pull force in a first direction to secure the second component within the circular opening. The second component is configured to break away from the circular opening when a contact force to the breakaway component causes a force in a second direction opposite of the first direction and greater than the magnetic pull force.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 29, 2015
    Assignee: Google Inc.
    Inventors: Robert Kim, Kenneth Ryan Loo, David Gordon Duff
  • Publication number: 20150301695
    Abstract: The technology relates to selecting and displaying images captured at different points in time. As an example, a user of a computing device may view a first street level image as viewed from a particular location and oriented in a particular direction. The user may select other time periods for which similar images are available. Upon selecting a particular time period, a second street level image may be displayed concurrently with the first street level image, wherein the second street level image was captured on or around the selected time period. If the user changes the perspective of the first image an automatic change in perspective of the second image may occur.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 22, 2015
    Applicant: GOOGLE INC.
    Inventors: Su Chuin Leong, David Gordon Duff, Jonathan Siegel, Andrew Vytas Kisielius, Aaron Michael Donsbach
  • Patent number: 9040184
    Abstract: A battery pack dehumidifier system for controlling the relative humidity within a battery pack enclosure is provided, the dehumidifier system including a desiccant that absorbs/adsorbs water vapor from the battery pack enclosure. The system heats and reactivates the desiccant at predetermined time intervals or when the humidity within the system reaches a preset level, thereby allowing the desiccant to regain its potential for absorbing/adsorbing water vapor.
    Type: Grant
    Filed: January 28, 2012
    Date of Patent: May 26, 2015
    Assignee: Tesla Motors, Inc.
    Inventors: David Gordon Duff, Jeffrey C. Weintraub, Gregory Arcenio
  • Publication number: 20120315517
    Abstract: A battery pack dehumidifier system for controlling the relative humidity within a battery pack enclosure is provided, the dehumidifier system including a desiccant that absorbs/adsorbs water vapor from the battery pack enclosure. The system heats and reactivates the desiccant at predetermined time intervals or when the humidity within the system reaches a preset level, thereby allowing the desiccant to regain its potential for absorbing/adsorbing water vapor.
    Type: Application
    Filed: January 28, 2012
    Publication date: December 13, 2012
    Applicant: TESLA MOTORS, INC.
    Inventors: David Gordon Duff, Jeffrey C. Weintraub, Gregory Arcenio
  • Patent number: 8247097
    Abstract: A method for controlling the relative humidity within a battery pack enclosure is provided in which the volume of air within the battery pack is exposed to a volume of desiccant contained within a desiccant enclosure. The system is configured to heat and reactivate the desiccant at predetermined time intervals or when the humidity within the system reaches a preset level, thereby allowing the desiccant to regain its potential for absorbing/adsorbing water vapor.
    Type: Grant
    Filed: January 28, 2012
    Date of Patent: August 21, 2012
    Assignee: Tesla Motors, Inc.
    Inventors: David Gordon Duff, Jeffrey C. Weintraub, Gregory Arcenio
  • Patent number: D904909
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: December 15, 2020
    Assignee: Waymo LLC
    Inventors: David Gordon Duff, Blaise Gassend, Ryan Davis, Ralph Hamilton Shepard, John Massey, Pierre-Yves Droz