Patents by Inventor David B. Sears
David B. Sears 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: 11786677Abstract: A brushless DC motor including a rotor, a magnet provided to the rotor, a pair of bearings to rotatably support the rotor, a stator assembly that at least partly surrounds the rotor and magnet thereof and adapted to control movement of the rotor, and a bearing tube having an exterior surface and an interior surface that defines a tube interior. The stator assembly is provided along the exterior surface of the tube and the bearings are provided along the interior surface of the tube to support the rotor and magnet within the tube interior. The motor has sample application for use in PAP devices for delivery of positive airway pressure therapy for users or patients.Type: GrantFiled: August 11, 2021Date of Patent: October 17, 2023Assignee: ResMed Motor Technologies Inc.Inventors: David B. Sears, Aleksandr S. Nagorny, Samuel Aziz Mebasser
-
Publication number: 20220220972Abstract: A blower includes a stationary portion including an inlet and an outlet, a rotating portion provided to the stationary portion, and a motor adapted to drive the rotating portion. The inlet and outlet are co-axially aligned. The stationary portion includes a housing, a stator component provided to the housing, and a tube providing an interior surface. The rotating portion includes one or more bearings that are provided along the interior surface of the tube to support a rotor within the tube. In an embodiment, the blower is structured to supply air at positive pressure.Type: ApplicationFiled: March 28, 2022Publication date: July 14, 2022Inventors: Barton John KENYON, David B. SEARS, Aleksandr S. NAGORNY, Samuel Aziz MEBASSER, Peter John SWEENEY
-
Patent number: 11293453Abstract: A blower includes a stationary portion including an inlet and an outlet, a rotating portion provided to the stationary portion, and a motor adapted to drive the rotating portion. The inlet and outlet are co-axially aligned. The stationary portion includes a housing, a stator component provided to the housing, and a tube providing an interior surface. The rotating portion includes one or more bearings that are provided along the interior surface of the tube to support a rotor within the tube. In an embodiment, the blower is structured to supply air at positive pressure.Type: GrantFiled: July 8, 2019Date of Patent: April 5, 2022Assignee: ResMed Motor Technologies IncInventors: Barton John Kenyon, David B. Sears, Aleksandr S. Nagorny, Samuel Aziz Mebasser, Peter John Sweeney
-
Publication number: 20210369994Abstract: A brushless DC motor including a rotor, a magnet provided to the rotor, a pair of bearings to rotatably support the rotor, a stator assembly that at least partly surrounds the rotor and magnet thereof and adapted to control movement of the rotor, and a bearing tube having an exterior surface and an interior surface that defines a tube interior. The stator assembly is provided along the exterior surface of the tube and the bearings are provided along the interior surface of the tube to support the rotor and magnet within the tube interior. The motor has sample application for use in PAP devices for delivery of positive airway pressure therapy for users or patients.Type: ApplicationFiled: August 11, 2021Publication date: December 2, 2021Inventors: David B. SEARS, Aleksandr S. NAGORNY, Samuel Aziz MEBASSER
-
Patent number: 11090453Abstract: A brushless DC motor including a rotor, a magnet provided to the rotor, a pair of bearings to rotatably support the rotor, a stator assembly that at least partly surrounds the rotor and magnet thereof and adapted to control movement of the rotor, and a bearing tube having an exterior surface and an interior surface that defines a tube interior. The stator assembly is provided along the exterior surface of the tube and the bearings are provided along the interior surface of the tube to support the rotor and magnet within the tube interior. The motor has sample application for use in PAP devices for delivery of positive airway pressure therapy for users or patients.Type: GrantFiled: March 1, 2018Date of Patent: August 17, 2021Assignee: ResMed Motor Technologies IncInventors: David B. Sears, Aleksandr S. Nagorny, Samuel Aziz Mebasser
-
Publication number: 20190334418Abstract: A blower includes a stationary portion including an inlet and an outlet, a rotating portion provided to the stationary portion, and a motor adapted to drive the rotating portion. The inlet and outlet are co-axially aligned. The stationary portion includes a housing, a stator component provided to the housing, and a tube providing an interior surface. The rotating portion includes one or more bearings that are provided along the interior surface of the tube to support a rotor within the tube. In an embodiment, the blower is structured to supply air at positive pressure.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Inventors: Barton John KENYON, David B. SEARS, Aleksandr S. NAGORNY, Samuel Aziz MEBASSER, Peter John SWEENEY
-
Patent number: 10396640Abstract: A method for forming windings of a stator assembly in a blower includes providing a stationary portion for the blower including a tube adapted to support a rotor and using the tube as a mandrel to form the windings of the stator assembly.Type: GrantFiled: December 20, 2013Date of Patent: August 27, 2019Assignee: ResMed Motor Technologies Inc.Inventors: Barton John Kenyon, David B. Sears, Aleksandr S. Nagorny, Samuel Aziz Mebasser, Peter John Sweeney
-
Publication number: 20180185594Abstract: A brushless DC motor including a rotor, a magnet provided to the rotor, a pair of bearings to rotatably support the rotor, a stator assembly that at least partly surrounds the rotor and magnet thereof and adapted to control movement of the rotor, and a bearing tube having an exterior surface and an interior surface that defines a tube interior. The stator assembly is provided along the exterior surface of the tube and the bearings are provided along the interior surface of the tube to support the rotor and magnet within the tube interior. The motor has sample application for use in PAP devices for delivery of positive airway pressure therapy for users or patients.Type: ApplicationFiled: March 1, 2018Publication date: July 5, 2018Inventors: David B. SEARS, Aleksandr S. NAGORNY, Samuel Aziz MEBASSER
-
Patent number: 9937307Abstract: A PAP device for generating a supply of pressurized gas to be provided to a patient for treatment includes a housing, a core including a motor and at least one impeller, and a vibration isolation system to support the core within the housing in a flexible, vibration-isolated manner.Type: GrantFiled: December 6, 2013Date of Patent: April 10, 2018Assignee: ResMed Motor Technologies Inc.Inventors: David B. Sears, Aleksandr S. Nagorny, Samuel Aziz Mebasser
-
Patent number: 8816558Abstract: An insulator for a stator assembly includes at least a first insulator adapted to be mounted to the stator core and structured to insulate the stator core from the coils. The at least one insulator includes structure to perform at least one additional function. For example, the structure may include a support member to support and/or locate the PCBA on the stator core, a wire guide to guide cross-over wires that form a connection between coils, and/or positioning structure to precisely position the PCBA with respect to the coils.Type: GrantFiled: May 16, 2013Date of Patent: August 26, 2014Assignee: ResMed Motor Technologies IncInventors: David B. Sears, Michael Bruce Moir, Peter Jeffrey Thomas
-
Publication number: 20140101926Abstract: A method for forming windings of a stator assembly in a blower includes providing a stationary portion for the blower including a tube adapted to support a rotor and using the tube as a mandrel to form the windings of the stator assembly.Type: ApplicationFiled: December 20, 2013Publication date: April 17, 2014Applicant: ResMed Motor Technologies IncInventors: Barton John KENYON, David B. SEARS, Aleksandr S. NAGORNEY, Samuel Aziz MEBASSER, Peter John SWEENEY
-
Publication number: 20140090645Abstract: A PAP device for generating a supply of pressurized gas to be provided to a patient for treatment includes a housing, a core including a motor and at least one impeller, and a vibration isolation system to support the core within the housing in a flexible, vibration-isolated manner.Type: ApplicationFiled: December 6, 2013Publication date: April 3, 2014Applicant: ResMed Motor Technologies IncInventors: David B. SEARS, Aleksandr S. NAGORNY, Samuel Aziz MEBASSER
-
Patent number: 8636479Abstract: A blower includes a stationary portion including an inlet and an outlet, a rotating portion provided to the stationary portion, and a motor adapted to drive the rotating portion. The inlet and outlet are co-axially aligned. The stationary portion includes a housing, a stator component provided to the housing, and a tube providing an interior surface. The rotating portion includes one or more bearings that are provided along the interior surface of the tube to support a rotor within the tube. In an embodiment, the blower is structured to supply air at positive pressure.Type: GrantFiled: June 5, 2008Date of Patent: January 28, 2014Assignee: ResMed Motor Technologies IncInventors: Barton John Kenyon, David B. Sears, Aleksandr Nagorny, Samuel Aziz Mebasser, Peter John Sweeney
-
Patent number: 8638014Abstract: A brushless DC motor including a rotor, a magnet provided to the rotor, a pair of bearings to rotatably support the rotor, a stator assembly that at least partly surrounds the rotor and magnet thereof and adapted to control movement of the rotor, and a bearing tube having an exterior surface and an interior surface that defines a tube interior. The stator assembly is provided along the exterior surface of the tube and the bearings are provided along the interior surface of the tube to support the rotor and magnet within the tube interior. The motor has sample application for use in PAP devices for delivery of positive airway pressure therapy for users or patients.Type: GrantFiled: October 24, 2007Date of Patent: January 28, 2014Assignee: ResMed Motor Technologies IncInventors: David B. Sears, Aleksandr Nagorny, Samuel Aziz Mebasser
-
Publication number: 20130259674Abstract: An insulator for a stator assembly includes at least a first insulator adapted to be mounted to the stator core and structured to insulate the stator core from the coils. The at least one insulator includes structure to perform at least one additional function. For example, the structure may include a support member to support and/or locate the PCBA on the stator core, a wire guide to guide cross-over wires that form a connection between coils, and/or positioning structure to precisely position the PCBA with respect to the coils.Type: ApplicationFiled: May 16, 2013Publication date: October 3, 2013Applicant: ResMed Motor Technologies Inc.Inventors: David B. SEARS, Michael Bruce MOIR, Peter Jeffrey THOMAS
-
Patent number: 8450898Abstract: An insulator for a stator assembly includes at least a first insulator adapted to be mounted to the stator core and structured to insulate the stator core from the coils. The at least one insulator includes structure to perform at least one additional function. For example, the structure may include a support member to support and/or locate the PCBA on the stator core, a wire guide to guide cross-over wires that form a connection between coils, and/or positioning structure to precisely position the PCBA with respect to the coils.Type: GrantFiled: August 31, 2007Date of Patent: May 28, 2013Assignee: ResMed Motor Technologies IncInventors: David B. Sears, Michael Bruce Moir, Peter Jeffrey Thomas
-
Patent number: 8129872Abstract: An impeller and at least a portion of a cooperating peripheral volute may be integrated are integrally injection molded with, concentric outer rotor and inner stator assemblies, respectively, to achieve a low profile precision impeller mechanism based on an improved brushless D.C. motor with low length to diameter ratio and suitable for use in a variety of other applications. A rotating cap has an inner circumference which is molded about an outer ferromagnetic back ring that in turn supports a rotor magnet having a number of poles of alternating polarity and separated by a relatively small cylindrical air gap from a fixed stator assembly. The fixed stator assembly is integrally molded into a base housing having a bearing support that extends upwardly through the center of the stator assembly and that is rotatably coupled to a rotating shaft that extends downwardly from the center of the rotating cap.Type: GrantFiled: September 27, 2010Date of Patent: March 6, 2012Assignee: Resmed Motor Technologies Inc.Inventors: Leslie C. Hoffman, Barton J. Kenyon, David B. Sears
-
Publication number: 20110014074Abstract: An impeller and at least a portion of a cooperating peripheral volute may be integrated are integrally injection molded with, concentric outer rotor and inner stator assemblies, respectively, to achieve a low profile precision impeller mechanism based on an improved brushless D.C. motor with low length to diameter ratio and suitable for use in a variety of other applications. A rotating cap has an inner circumference which is molded about an outer ferromagnetic back ring that in turn supports a rotor magnet having a number of poles of alternating polarity and separated by a relatively small cylindrical air gap from a fixed stator assembly. The fixed stator assembly is integrally molded into a base housing having a bearing support that extends upwardly through the center of the stator assembly and that is rotatably coupled to a rotating shaft that extends downwardly from the center of the rotating cap.Type: ApplicationFiled: September 27, 2010Publication date: January 20, 2011Inventors: Leslie C. Hoffman, Barton J. Kenyon, David B. Sears
-
Patent number: 7804213Abstract: An impeller and at least a portion of a cooperating peripheral volute may be integrated into, and preferably are integrally injection molded with, concentric outer rotor and inner stator assemblies, respectively, to achieve a low profile precision impeller mechanism based on an improved brushless d.c. motor with low length (L) to diameter (D) ratio and suitable for use in a variety of other applications. In one practical embodiment of such a motor, a rotating cap has an inner circumference which is molded about an outer ferromagnetic back ring that in turn supports a permanently magnetized ring shaped rotor magnet having a number of poles of alternating polarity defined about its inner circumference and separated by a relatively small cylindrical air gap from the outwardly projecting radially oriented selectively magnetized poles of a fixed stator assembly. In one exemplary embodiment, the rotor may have 8 poles and the stator may have 9 poles.Type: GrantFiled: February 27, 2006Date of Patent: September 28, 2010Assignee: Resmed Motor Technologies Inc.Inventors: Leslie C. Hoffman, Barton J. Kenyon, David B. Sears
-
Patent number: D619700Type: GrantFiled: February 13, 2009Date of Patent: July 13, 2010Assignee: ResMed Motor Technologies Inc.Inventors: Barton John Kenyon, David B. Sears, Michael Bruce Moir, Michael David Bednar, Richard G. Krum