Patents by Inventor Robert Lawrence Tweedie
Robert Lawrence Tweedie 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).
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Publication number: 20240065411Abstract: A hair styling appliance is described that includes an airflow unit for generating an airflow, a heating unit for heating the airflow, and a control unit for controlling the airflow unit and the heating unit. The control unit receives user data relating to at least one of a desired style, a hair type and a previous styling by the appliance. The control unit controls the airflow unit and the heating unit in a sequence of modes to style the hair of a user, the airflow unit having a different flow rate and/or the heating unit having a different heat setting in different modes. The control unit uses the user data to define the sequence of modes.Type: ApplicationFiled: December 23, 2021Publication date: February 29, 2024Applicant: Dyson Technology LimitedInventors: Thomas Alexander CARLYLE, Emma Victoria CARSON, Robert Lawrence TWEEDIE, Stephen Benjamin COURTNEY
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Publication number: 20240057738Abstract: A hair styling appliance is described that includes an airflow unit for generating an airflow, a heating unit for heating the airflow, and a control unit for controlling the airflow unit and the heating unit. The control unit controls the airflow unit and the heating unit in a predefined sequence of modes that includes a first mode, a second mode and a third mode. The airflow unit has a different flow rate and/or the heating unit has a different heat setting in each of the modes, and the control unit determines when to transition between modes of the predefined sequence.Type: ApplicationFiled: December 23, 2021Publication date: February 22, 2024Applicant: Dyson Technology LimitedInventors: Thomas Alexander CARLYLE, Emma Victoria CARSON, Robert Lawrence TWEEDIE, Nathan Haruna Waters IMHASLY, Robert Mark Brett COULTON, Stephen Benjamin COURTNEY
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Publication number: 20230397705Abstract: A haircare appliance has a housing having an air inlet and an air outlet, an airflow generator for generating an airflow from the air inlet to the air outlet, and a heater for heating the airflow. The haircare appliance has an airflow temperature module for obtaining a value indicative of a temperature of the airflow at the air outlet, a distance sensor for sensing a distance to hair within a flow path from the air outlet and a temperature sensor for sensing a temperature of the hair. The haircare appliance has a moisture estimation module configured to estimate, based on received output values from the airflow temperature module, the distance sensor and the temperature sensor, a moisture content of the hair.Type: ApplicationFiled: October 13, 2021Publication date: December 14, 2023Applicant: Dyson Technology LimitedInventors: Thomas Alexander CARLYLE, David James GRAHAM, Nathan Haruna Waters IMHASLY, Robert Lawrence TWEEDIE
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Patent number: 11744689Abstract: A dental cleaning appliance includes a handle and a fluid delivery system. The fluid delivery system includes a nozzle for delivering a burst of working fluid to the teeth of a user, and a moveable fluid conduit which is moveable about an axis relative to the handle. The nozzle is moveable with the fluid conduit, which is biased for movement about the axis in a direction which urges the nozzle against a user's teeth during use of the appliance.Type: GrantFiled: May 11, 2016Date of Patent: September 5, 2023Assignee: Dyson Technology LimitedInventors: Thomas James Dunning Follows, William John Bex-Russell, Timothy Nicholas Stickney, Robert Lawrence Tweedie
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Patent number: 11317710Abstract: A fluid delivery system for a dental cleaning appliance includes a nozzle for delivering a burst of working fluid to the teeth of a user, and a fluid conduit for conveying working fluid to the nozzle. A body of the nozzle defines a fluid chamber and a channel for conveying working fluid from the fluid chamber to a fluid outlet from the nozzle. The fluid chamber has a tangential inlet for receiving working fluid from the fluid conduit.Type: GrantFiled: October 26, 2017Date of Patent: May 3, 2022Assignee: Dyson Technology LimitedInventors: Robert Lawrence Tweedie, Christopher Graham Vincent, Thomas James Dunning Follows, James David Coleman, Andrew Nicholas Walton
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Patent number: 11116306Abstract: A pump assembly for a dental cleaning appliance includes a fluid chamber, a piston, and a drive. Magnets, connected respectively to the piston and the drive, enable the drive to couple to the piston and move it within the fluid chamber to draw fluid into the fluid chamber. A stop prevents the piston from being pulled beyond a stop position so that through continued actuation of the drive the magnets separate to allow a spring to push the piston away from the stop position to urge a burst of fluid from the fluid chamber.Type: GrantFiled: September 25, 2017Date of Patent: September 14, 2021Assignee: Dyson Technology LimitedInventors: Christopher Graham Vincent, Robert Lawrence Tweedie, Jason Godfrey Jones, Robert Stefan Wronski, Philip Stephen Darling, Edward Michael Waugh
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Patent number: 11076940Abstract: A dental cleaning appliance includes a handle and a fluid delivery system. The fluid delivery system includes a nozzle for delivering a burst of working fluid to the teeth of a user. A contact member for engaging the teeth of the user is moveable relative to the nozzle as the appliance is moved along the teeth of the user. A sensor provides an output which varies with movement of contact member relative to the nozzle. A control circuit actuates the delivery of working fluid to the teeth of the user depending on the output from the sensor.Type: GrantFiled: November 3, 2017Date of Patent: August 3, 2021Assignee: Dyson Technology LimitedInventors: Robert Lawrence Tweedie, Timothy Nicholas Stickney, Christopher Graham Vincent, Alan Harold Henry Mole, Stephen Benjamin Courtney
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Patent number: 11071365Abstract: An attachment for a hand held appliance comprising a body having a wall, a fluid inlet at one end of the wall and a fluid outlet through the wall wherein the fluid outlet comprises at least one slot extending along the wall and wherein the at least one slot is formed by an overlap of a first end of the wall and a second end of the wall. The wall may be formed from at least two plates. A first one of the at least two plates may comprise the first end of the wall and a second one may comprise the second end of the wall. The first of the at least two plates may define a radially inner surface of the slot. The second one of the at least two plates may define a radially outer surface of the slot. The slot may be tangential to the wall.Type: GrantFiled: March 12, 2015Date of Patent: July 27, 2021Assignee: Dyson Technology LimitedInventors: Alasdair Michael Maclaine, Robert Lawrence Tweedie
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Patent number: 11033371Abstract: A pump assembly for a dental cleaning appliance includes a fluid chamber, a piston, and a drive. The drive rotates a coupling member having two angularly opposed pins. An arm pivotably connected to the piston has a seat for receiving one of the pins to couple the piston to the drive. Through continued rotation of the coupling member, the piston moves within the fluid chamber to draw fluid into the fluid chamber until the second detent contacts the arm to push it away from the first detent to decouple the drive from the piston. This allows a compressed spring to actuate the piston to urge a burst of fluid from the fluid chamber.Type: GrantFiled: September 25, 2017Date of Patent: June 15, 2021Assignee: Dyson Technology LimitedInventors: Robert Lawrence Tweedie, Christopher Graham Vincent, Geoffrey Michael Burlington
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Publication number: 20180125624Abstract: A dental cleaning appliance includes a handle and a fluid delivery system. The fluid delivery system includes a nozzle for delivering a burst of working fluid to the teeth of a user. A contact member for engaging the teeth of the user is moveable relative to the nozzle as the appliance is moved along the teeth of the user. A sensor provides an output which varies with movement of contact member relative to the nozzle. A control circuit actuates the delivery of working fluid to the teeth of the user depending on the output from the sensor.Type: ApplicationFiled: November 3, 2017Publication date: May 10, 2018Applicant: Dyson Technology LimitedInventors: Robert Lawrence TWEEDIE, Timothy Nicholas STICKNEY, Christopher Graham VINCENT, Alan Harold Henry MOLE, Stephen Benjamin COURTNEY
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Publication number: 20180125621Abstract: A dental cleaning appliance includes a handle and a fluid delivery system. The fluid delivery system includes a nozzle for delivering a burst of working fluid to the teeth of a user. The nozzle moves relative to the handle as the appliance is moved along the teeth of the user. A sensor provides an output which varies with movement of nozzle relative to the handle. A control circuit actuates the delivery of working fluid to the teeth of the user depending on the output from the sensor. The control circuit is configured to adjust a parameter of the delivery to the teeth of the user, such as the volume of working fluid within a delivery, depending on the variation with time of the output from the sensor.Type: ApplicationFiled: November 3, 2017Publication date: May 10, 2018Applicant: Dyson Technology LimitedInventors: Robert Lawrence TWEEDIE, Thomas Alexander CARLYLE, Andrew Steven BOOTH
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Publication number: 20180116390Abstract: A fluid delivery system for a dental cleaning appliance includes a nozzle for delivering a burst of working fluid to the teeth of a user, and a fluid conduit for conveying working fluid to the nozzle. A body of the nozzle defines a fluid chamber and a channel for conveying working fluid from the fluid chamber to a fluid outlet from the nozzle. The fluid chamber has a tangential inlet for receiving working fluid from the fluid conduit.Type: ApplicationFiled: October 26, 2017Publication date: May 3, 2018Applicant: Dyson Technology LimitedInventors: Robert Lawrence TWEEDIE, Christopher Graham VINCENT, Thomas James Dunning FOLLOWS, James David COLEMAN, Andrew Nicholas WALTON
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Publication number: 20180116774Abstract: A dental cleaning appliance includes a nozzle having a fluid chamber, a fluid outlet and a channel extending between the fluid chamber and the fluid outlet. A water reservoir provides water to a pump for generating a burst of pressurized water, which is supplied to the nozzle by a fluid conduit. Following the delivery of the burst of water to the teeth of the user, a valve draws water back into the fluid chamber from the channel to prevent that water from dripping from the fluid outlet before the next water burst is generated by the pump. Simultaneously, air may be drawn into the fluid chamber, for example, through the fluid outlet, for mixing with the next water burst to generate a fluid burst for delivery to the user's teeth.Type: ApplicationFiled: October 26, 2017Publication date: May 3, 2018Applicant: Dyson Technology LimitedInventors: James David COLEMAN, Andrew Nicholas WALTON, Luke William DAVISON, Robert Lawrence TWEEDIE
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Publication number: 20180085207Abstract: A pump assembly for a dental cleaning appliance includes a fluid chamber, a piston, and a drive. The drive rotates a coupling member having two angularly opposed pins. An arm pivotably connected to the piston has a seat for receiving one of the pins to couple the piston to the drive. Through continued rotation of the coupling member, the piston moves within the fluid chamber to draw fluid into the fluid chamber until the second detent contacts the arm to push it away from the first detent to decouple the drive from the piston. This allows a compressed spring to actuate the piston to urge a burst of fluid from the fluid chamber.Type: ApplicationFiled: September 25, 2017Publication date: March 29, 2018Applicant: Dyson Technology LimitedInventors: Robert Lawrence TWEEDIE, Christopher Graham VINCENT, Geoffrey Michael BURLINGTON
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Publication number: 20180084898Abstract: A pump assembly for a dental cleaning appliance includes a fluid chamber, a piston, and a drive. Magnets, connected respectively to the piston and the drive, enable the drive to couple to the piston and move it within the fluid chamber to draw fluid into the fluid chamber. A stop prevents the piston from being pulled beyond a stop position so that through continued actuation of the drive the magnets separate to allow a spring to push the piston away from the stop position to urge a burst of fluid from the fluid chamber.Type: ApplicationFiled: September 25, 2017Publication date: March 29, 2018Applicant: Dyson Technology LimitedInventors: Christopher Graham VINCENT, Robert Lawrence TWEEDIE, Jason Godfrey JONES, Robert Stefan WRONSKI, Philip Stephen DARLING, Edward Michael WAUGH
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Patent number: 9808066Abstract: A hair care appliance including, a body, a heater, a PCB and a primary fluid flow path extending from a primary fluid inlet into the appliance to a primary fluid outlet out of the body wherein the PCB and heater are in fluid communication with the primary fluid flow path and the PCB is upstream of the heater. A fan unit may be provided and the fan unit is upstream of the heater and may be upstream or downstream of the PCB. A thermal barrier may be provided between the PCB and the heater. The thermal barrier may be in thermal communication with the PCB and functions as a heat sink for the PCB.Type: GrantFiled: June 13, 2014Date of Patent: November 7, 2017Assignee: Dyson Technology LimitedInventors: Patrick Joseph William Moloney, Anthony Thomas Gosnay, Nicholas Stuart Harrod, Robert Lawrence Tweedie, Christopher Daniel Wilkinson, Stephen Benjamin Courtney
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Publication number: 20170273430Abstract: An attachment including a casing having an air inlet for receiving airflow from a hair styling apparatus, a hair engaging member supported by the casing, a first airflow outlet between the casing and the hair engaging member, a second airflow outlet, spaced from the first airflow outlet, between the casing and the hair engaging member and internal airflow directing means positioned within the casing to direct air towards the first airflow outlet and the second airflow outlet.Type: ApplicationFiled: March 24, 2017Publication date: September 28, 2017Applicant: Dyson Technology LimitedInventors: Jonathan James Harvey HEFFER, Stephen Benjamin COURTNEY, Robert Mark Brett COULTON, Robert Lawrence TWEEDIE, Alasdair Michael MACLAINE, Annmarie Rita NICOLSON, Emma Victoria CARSON
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Patent number: 9743749Abstract: A dental cleaning appliance includes a handle, a fluid reservoir for storing a working fluid, and a fluid delivery system for receiving working fluid from the fluid reservoir, and for delivering the working fluid to the teeth of a user. The fluid reservoir is delimited by a wall and a movable member which is moveable relative to the wall to vary the volume of the fluid reservoir. An expansion chamber is located adjacent to the moveable member. The volume of the fluid reservoir decreases, and the volume of the expansion chamber increases, as fluid is supplied to the fluid delivery system during use of the appliance.Type: GrantFiled: May 11, 2016Date of Patent: August 29, 2017Assignee: Dyson Technology LimitedInventors: Thomas James Dunning Follows, Stephen Benjamin Courtney, Timothy Nicholas Stickney, Robert Lawrence Tweedie, Scott James Mighall
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Patent number: 9700129Abstract: A dental cleaning appliance includes a handle, a fluid reservoir for storing a working fluid, a fluid delivery system for receiving working fluid from the fluid reservoir, and for delivering a burst of working fluid to the teeth of a user, and an external collar comprising a fluid port, the collar being moveable relative to the handle between a first position in which the fluid port is exposed to allow the fluid reservoir to be replenished, and a second position in which the fluid port is occluded.Type: GrantFiled: May 11, 2016Date of Patent: July 11, 2017Assignee: Dyson Technology LimitedInventors: Thomas James Dunning Follows, William John Bex-Russell, Timothy Nicholas Stickney, Robert Lawrence Tweedie, Stephen Benjamin Courtney
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Patent number: 9510395Abstract: A heater for a hand held appliance, the heater comprising a first layer, a second layer and a separator for separating the first and second layers of the heater wherein the separator is a tube. The first layer and/or second layer may be a wire element. The first layer may extend at least partially around and/or partially along the tube. The tube may comprise spacers extending along the tube and radially away from the tube for supporting the first layer. An outer tube may be provided wherein the outer tube extends at least around and along the first layer. The outer tube may extend around and along the tube. An inner support structure for supporting the second layer may be provided. The inner support structure may comprise an inner tube or support wings and the second layer may extend at least partially around the inner tube or support wings.Type: GrantFiled: July 15, 2014Date of Patent: November 29, 2016Assignee: DYSON TECHNOLOGY LIMITEDInventors: Robert Mark Brett Coulton, Robert Lawrence Tweedie, James Richard Warren Hewitt, Patrick Joseph William Moloney