Patents by Inventor Matthew John Childe
Matthew John Childe 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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Patent number: 11668322Abstract: A turbomachine having a rotor assembly, a stator assembly and a toroidal inductor. The rotor assembly includes an impeller. The inductor is located between the impeller and the stator assembly, and is exposed to an airflow generated by or acting upon the impeller.Type: GrantFiled: April 27, 2016Date of Patent: June 6, 2023Assignee: Dyson Technology LimitedInventors: Andrew Charlton Clothier, Matthew John Childe
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Patent number: 11473594Abstract: A compressor has a rotor assembly having an impeller for generating an airflow through the compressor, a stator core assembly for causing rotation of the impeller, and a diffuser assembly for acting on the airflow generated by the impeller. The diffuser assembly has a first diffuser stage and a second diffuser stage. The first and second diffuser stages are separate components connected to one another by a fastener.Type: GrantFiled: March 12, 2019Date of Patent: October 18, 2022Assignee: Dyson Technology LimitedInventors: Mark Andrew Johnson, Simon Alexander Locke, Matthew John Childe, Cathal Clancy, Vadivel Kumaran Sivashanmugam, Nora Er-Rouhly, Lukasz Andrzej Kowalczyk, Alan Glynn Sanderson, Thomas Richard Stafford, Sarah Elizabeth Elson, Alexander Thomas Wells, Jim Ray Lluisma
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Patent number: 10729218Abstract: A handheld device comprising a motor for generating an airflow through the device, the motor including: a frame for supporting a rotor assembly and a stator assembly, the frame including an inner wall and an outer wall and a plurality of diffuser vanes extending between the inner wall and outer wall; a rotor assembly including a shaft, a magnet, a bearing assembly and an impeller; and a stator assembly including a bobbin, a stator core and a winding wound around the bobbin; the frame being formed of zinc and the impeller being formed of aluminium.Type: GrantFiled: December 12, 2016Date of Patent: August 4, 2020Assignee: Dyson Technology LimitedInventors: Matthew John Childe, Simon Alexander Locke, Martin Richard Harrex
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Patent number: 10505414Abstract: A rotor core assembly that includes a magnet, a first end cap located at an end of the magnet, a second end cap located at an opposite end of the magnet, and a sleeve that surrounds the magnet and the end caps. The sleeve forms an interference fit with each of the end caps, and an adhesive is located between the magnet and the sleeve. Additionally, a method of manufacturing the rotor core assembly.Type: GrantFiled: March 5, 2014Date of Patent: December 10, 2019Assignee: Dyson Technology LimitedInventors: David Ions, Paul Theo Heyting, Matthew John Childe, David Michael Jones
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Patent number: 9611864Abstract: A centrifugal compressor that includes an impeller, a diffuser and a shroud. One of the diffuser and shroud includes a plurality of recesses and the other of the diffuser and shroud includes a plurality of radial vanes. The shroud covers the impeller and diffuser such that each radial vane projects into a respective recess.Type: GrantFiled: February 19, 2010Date of Patent: April 4, 2017Assignee: Dyson Technology LimitedInventors: Matthew John Childe, Peter Lee Crossley
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Patent number: 9564778Abstract: A stator core that includes a pair of poles separated by an air gap. Each pole includes a first side adjacent the air gap and a second opposite side remote from the air gap. A pole arc is formed in the first side and an arcuate mounting recess is formed in the second side of each pole. Additionally, an electric machine that includes the stator core.Type: GrantFiled: February 19, 2010Date of Patent: February 7, 2017Assignee: Dyson Technologies LimitedInventors: Howard Charles Fulford, Stephen Greetham, Andrew Charlton Clothier, Matthew John Childe
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Patent number: 9410442Abstract: A turbomachine having a rotor assembly, a stator assembly and a toroidal inductor. The rotor assembly includes an impeller. The inductor is located between the impeller and the stator assembly, and is exposed to an airflow generated by or acting upon the impeller.Type: GrantFiled: August 24, 2012Date of Patent: August 9, 2016Assignee: Dyson Technology LimitedInventors: Andrew Charlton Clothier, Matthew John Childe
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Patent number: 8933604Abstract: A rotor core assembly that includes a magnet, a first end cap located at an end of the magnet, a second end cap located at an opposite end of the magnet, and a sleeve that surrounds the magnet and the end caps. The sleeve forms an interference fit with each of the end caps, and an adhesive is located between the magnet and the sleeve. Additionally, a method of manufacturing the rotor core assembly.Type: GrantFiled: August 18, 2011Date of Patent: January 13, 2015Assignee: Dyson Technology LimitedInventors: David Ions, Paul Theo Heyting, Matthew John Childe, David Michael Jones
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Patent number: 8864460Abstract: A bearing assembly that includes a first bearing, a second bearing, a spring and a sleeve. The spring applies a preload to each of the bearings, and the sleeve surrounds the spring and the bearings. The sleeve includes an end portion that extends axially beyond the first bearing. The end portion includes a step down in the outer diameter that defines a seat for an o-ring.Type: GrantFiled: August 20, 2012Date of Patent: October 21, 2014Assignee: Dyson Technology LimitedInventors: Matthew John Childe, Geoffrey Michael Burlington, David Michael Jones
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Patent number: 8839505Abstract: A method of manufacturing a magnet assembly that includes surrounding a bonded magnet with a sleeve, heating the magnet, and compressing the magnet in an axial direction such that the magnet and sleeve expand in a radial direction.Type: GrantFiled: October 31, 2011Date of Patent: September 23, 2014Assignee: Dyson Technology LimitedInventors: Matthew John Childe, Nigel Youan Dymond
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Publication number: 20130223997Abstract: A bearing assembly that includes a first bearing, a second bearing, a spring and a sleeve. The spring applies a preload to each of the bearings, and the sleeve surrounds the spring and the bearings. The sleeve includes an end portion that extends axially beyond the first bearing. The end portion includes a step down in the outer diameter that defines a seat for an o-ring.Type: ApplicationFiled: August 20, 2012Publication date: August 29, 2013Applicant: Dyson Technology LimitedInventors: Matthew John Childe, Geoffrey Michael Burlington, David Michael Jones
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Patent number: 7834501Abstract: A bearing assembly particularly suitable for the rotor arrangement of an electrical motor or generator includes a bearing located in a housing. The bearing has an inner race, an outer race, and a plurality of ball bearings between the inner and outer races. A portion of the housing is made up of a deformable flexible wall which permits the housing to conform to the shape of the outer race member, rather than forcing the outer race to conform to the shape of the housing, as was experienced hitherto.Type: GrantFiled: September 17, 2004Date of Patent: November 16, 2010Assignee: Dyson Technology LimitedInventors: Matthew John Childe, Peter Lee Crossley
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Publication number: 20100225197Abstract: A stator core that includes a pair of poles separated by an air gap. Each pole includes a first side adjacent the air gap and a second opposite side remote from the air gap. A pole arc is formed in the first side and an arcuate mounting recess is formed in the second side of each pole. Additionally, an electric machine that includes the stator core.Type: ApplicationFiled: February 19, 2010Publication date: September 9, 2010Applicant: Dyson Technology LimitedInventors: Howard Charles Fulford, Stephen Greetham, Andrew Charlton Clothier, Matthew John Childe
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Patent number: 7786628Abstract: A rotor assembly for an electronic machine such as a motor includes a rotor on a shaft having a bearing at each end portion, the bearings being arranged to rotatably support the rotor and shaft. The assembly further includes a balancing member, from which material may be removed for balancing the rotor assembly. The balancing member is located in a predetermined position and orientation with respect to the rotor. The balancing member includes an encoder disk, arranged to permit positioning of the rotor with respect to a stator. The provision of a balancing member having an integral encoder disk facilitates the manufacture of the rotor assembly. As the balancing member is located in a predetermined position, the encoder automatically assumes a predetermined position and hence the position of the rotor can be determined with certainty.Type: GrantFiled: September 17, 2004Date of Patent: August 31, 2010Assignee: Dyson Technology LimitedInventors: Matthew John Childe, Peter Lee Crossley
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Publication number: 20100215491Abstract: A rotor assembly that includes a shaft to which are mounted an impeller, a rotor core and a bearing cartridge. The bearing cartridge is mounted between the impeller and the rotor core and comprises a pair of bearings, a spring that applies a preload to each of the bearings, and a sleeve that surrounds the bearings.Type: ApplicationFiled: February 17, 2010Publication date: August 26, 2010Applicant: Dyson Technology LimitedInventors: Richard Iain Mockridge, Stephen Greetham, Matthew John Childe