Patents by Inventor John David Wallace

John David Wallace 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: 10344773
    Abstract: A fan assembly includes a motor-driven impeller for creating an air flow, a casing including an interior passage for receiving the air flow, and a plurality of air outlets for emitting the air flow from the casing. The casing defines and extends about an opening through which air from outside the casing is drawn by the air flow emitted from the air outlets. The fan assembly also includes at least one heater for heating at least a first portion of the air flow, and means for diverting at least a second portion of the air flow away from said at least one heater. The plurality of outlets includes at least one first air outlet for emitting the relatively hot first portion of the air flow and at least one second air outlet for emitting the relatively cold second portion of the air flow.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: July 9, 2019
    Assignee: Dyson Technology Limited
    Inventors: John David Wallace, Chang Hin Choong
  • Patent number: 10145583
    Abstract: Heating apparatus includes an air inlet, a plurality of air outlets, an impeller, a motor for rotating the impeller to draw air through the air inlet, a user interface for allowing a user to select a rotational speed of the motor from a user selectable range of values, and a plurality of heater assemblies each comprising at least one positive temperature coefficient (PTC) heating element for heating air passing from the air inlet to a respective air outlet. The magnitude of a current drawn by the heater assemblies is detected, and the rotational speed of the motor is controlled independently from the rotational speed selected by the user depending on a characteristic of the current drawn by the heater assemblies.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: December 4, 2018
    Assignee: Dyson Technology Limited
    Inventors: Yuen Kee Leow, Jun Hong Lee, Ying Fang Tan, I Made Artha Yoga Ajnyana, John David Wallace
  • Patent number: 9599368
    Abstract: A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: March 21, 2017
    Assignee: Dyson Technology Limited
    Inventors: Nicholas Gerald Fitton, John Scott Sutton, Peter David Gammack, James Dyson, John David Wallace, Arran George Smith
  • Publication number: 20150093098
    Abstract: A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 2, 2015
    Applicant: Dyson Technology Limited
    Inventors: Nicholas Gerald FITTON, John Scott SUTTON, Peter David GAMMACK, James DYSON, John David WALLACE, Arran George SMITH
  • Publication number: 20150016975
    Abstract: A fan assembly includes a motor-driven impeller for creating an air flow, a casing including an interior passage for receiving the air flow, and a plurality of air outlets for emitting the air flow from the casing. The casing defines and extends about an opening through which air from outside the casing is drawn by the air flow emitted from the air outlets. The fan assembly also includes at least one heater for heating at least a first portion of the air flow, and means for diverting at least a second portion of the air flow away from said at least one heater. The plurality of outlets includes at least one first air outlet for emitting the relatively hot first portion of the air flow and at least one second air outlet for emitting the relatively cold second portion of the air flow.
    Type: Application
    Filed: October 3, 2014
    Publication date: January 15, 2015
    Applicant: DYSON TECHNOLOGY LIMITED
    Inventors: John David WALLACE, Chang Hin CHOONG
  • Patent number: 8932028
    Abstract: A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: January 13, 2015
    Assignee: Dyson Technology Limited
    Inventors: Nicholas Gerald Fitton, John Scott Sutton, Peter David Gammack, James Dyson, John David Wallace, Arran George Smith
  • Patent number: 8873940
    Abstract: A fan assembly includes a motor-driven impeller for creating an air flow, a casing including an interior passage for receiving the air flow, and a plurality of air outlets for emitting the air flow from the casing. The casing defines and extends about an opening through which air from outside the casing is drawn by the air flow emitted from the air outlets. The fan assembly also includes at least one heater for heating at least a first portion of the air flow, and means for diverting at least a second portion of the air flow away from said at least one heater. The plurality of outlets includes at least one first air outlet for emitting the relatively hot first portion of the air flow and at least one second air outlet for emitting the relatively cold second portion of the air flow.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: October 28, 2014
    Assignee: Dyson Technology Limited
    Inventors: John David Wallace, Chang Hin Choong
  • Publication number: 20140205470
    Abstract: A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.
    Type: Application
    Filed: March 21, 2014
    Publication date: July 24, 2014
    Applicant: DYSON TECHNOLOGY LIMITED
    Inventors: Nicholas Gerald FITTON, John Scott SUTTON, Peter David GAMMACK, James DYSON, John David WALLACE, Arran George SMITH
  • Patent number: 8734094
    Abstract: A fan assembly includes a motor-driven impeller for creating an air flow, at least one heater for heating a first portion of the air flow, a surface diverting a second portion of the air flow away from said at least one heater, and a casing comprising at least one first air outlet for emitting the first portion of the air flow and at least one second air outlet from emitting the second portion of the air flow. To cool an external surface of the casing, at least one second air outlet is arranged to direct at least part of the second portion of the air flow over the external surface.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: May 27, 2014
    Assignee: Dyson Technology Limited
    Inventors: John David Wallace, Chang Hin Choong
  • Patent number: 8714937
    Abstract: A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: May 6, 2014
    Assignee: Dyson Technology Limited
    Inventors: Nicholas Gerald Fitton, John Scott Sutton, Peter David Gammack, James Dyson, John David Wallace, Arran George Smith
  • Publication number: 20130272685
    Abstract: Heating apparatus includes an air inlet, a plurality of air outlets, an impeller, a motor for rotating the impeller to draw air through the air inlet, a user interface for allowing a user to select a rotational speed of the motor from a user selectable range of values, and a plurality of heater assemblies each comprising at least one positive temperature coefficient (PTC) heating element for heating air passing from the air inlet to a respective air outlet. The magnitude of a current drawn by the heater assemblies is detected, and the rotational speed of the motor is controlled independently from the rotational speed selected by the user depending on a characteristic of the current drawn by the heater assemblies.
    Type: Application
    Filed: April 3, 2013
    Publication date: October 17, 2013
    Inventors: Yuen Kee LEOW, Jun Hong LEE, Ying Fang TAN, I Made Artha Yoga AJNYANA, John David WALLACE
  • Patent number: 8366403
    Abstract: A fan assembly includes a motor-driven impeller for creating an air flow, at least one heater for heating a first portion of the air flow, and a casing comprising at least one air outlet for emitting the first portion of the air flow, and first channel for conveying the first portion of the air flow to the at least one air outlet. To cool part of the casing, the casing diverts a second portion of the air flow away from the at least one heater, and comprises a second channel for conveying the second portion of the air flow along an internal surface of the casing. This second portion of the air flow may merge with the first portion within the casing, or it may be emitted through at least one second air outlet of the casing.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: February 5, 2013
    Assignee: Dyson Technology Limited
    Inventors: John David Wallace, Chang Hin Choong
  • Publication number: 20120230658
    Abstract: A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.
    Type: Application
    Filed: May 25, 2012
    Publication date: September 13, 2012
    Applicant: DYSON TECHNOLOGY LIMITED
    Inventors: Nicholas Gerald FITTON, John Scott SUTTON, Peter David GAMMACK, James DYSON, John David WALLACE, Arran George SMITH
  • Patent number: 8197226
    Abstract: A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: June 12, 2012
    Assignee: Dyson Technology Limited
    Inventors: Nicholas Gerald Fitton, John Scott Sutton, Peter David Gammack, James Dyson, John David Wallace, Arran George Smith
  • Publication number: 20120034108
    Abstract: A fan assembly includes a motor-driven impeller for creating an air flow, at least one heater for heating a first portion of the air flow, and a casing comprising at least one air outlet for emitting the first portion of the air flow, and first channel means for conveying the first portion of the air flow to said at least one air outlet. To cool part of the casing, the casing includes means for diverting a second portion of the air flow away from said at least one heater, and second channel means for conveying the second portion of the air flow along an internal surface of the casing. This second portion of the air flow may merge with the first portion within the casing, or it may be emitted through at least one second air outlet of the casing.
    Type: Application
    Filed: July 21, 2011
    Publication date: February 9, 2012
    Applicant: Dyson Technology Limited
    Inventors: John David Wallace, Chang Hin Choong
  • Publication number: 20120031509
    Abstract: A fan assembly includes a motor-driven impeller for creating an air flow, at least one heater for heating a first portion of the air flow, means for diverting a second portion of the air flow away from said at least one heater, and a casing comprising at least one first air outlet for emitting the first portion of the air flow and at least one second air outlet from emitting the second portion of the air flow. To cool an external surface of the casing, at least one second air outlet is arranged to direct at least part of the second portion of the air flow over the external surface.
    Type: Application
    Filed: July 22, 2011
    Publication date: February 9, 2012
    Applicant: Dyson Technology Limited
    Inventors: John David WALLACE, Chang Hin Choong
  • Publication number: 20120033952
    Abstract: A fan assembly includes a motor-driven impeller for creating an air flow, a casing including an interior passage for receiving the air flow, and a plurality of air outlets for emitting the air flow from the casing. The casing defines and extends about an opening through which air from outside the casing is drawn by the air flow emitted from the air outlets. The fan assembly also includes at least one heater for heating at least a first portion of the air flow, and means for diverting at least a second portion of the air flow away from said at least one heater. The plurality of outlets includes at least one first air outlet for emitting the relatively hot first portion of the air flow and at least one second air outlet for emitting the relatively cold second portion of the air flow.
    Type: Application
    Filed: July 27, 2011
    Publication date: February 9, 2012
    Applicant: Dyson Technology Limited
    Inventors: John David WALLACE, Chang Hin Choong
  • Publication number: 20100226797
    Abstract: A bladeless fan assembly for creating an air current includes a nozzle mounted on a base housing a device for creating an air flow. The nozzle includes an interior passage for receiving the air flow and a mouth for emitting the air flow. The nozzle defines, and extends about, an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The nozzle also includes a heater for heating the air flow upstream of the mouth.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 9, 2010
    Applicant: DYSON TECHNOLOGY LIMITED
    Inventors: Nicholas Gerald Fitton, John Scott Sutton, Peter David Gammack, James Dyson, John David Wallace, Arran George Smith
  • Patent number: D643098
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: August 9, 2011
    Assignee: Dyson Limited
    Inventors: John David Wallace, Chang Hin Choong, Peter David Gammack, James Dyson
  • Patent number: D672023
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: December 4, 2012
    Assignee: Dyson Technology Limited
    Inventors: John David Wallace, Chang Hin Choong