Patents by Inventor James A. Andrews
James A. Andrews 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: 12284507Abstract: Force transducers for use in electrostatic drivers, including electrostatic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers having the force transducers can be used at all audio frequencies, including subwoofer frequencies.Type: GrantFiled: February 21, 2023Date of Patent: April 22, 2025Assignee: Brane Audio, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Patent number: 12256207Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: GrantFiled: September 18, 2020Date of Patent: March 18, 2025Assignee: Brane Audio, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Publication number: 20240388853Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS). The magnets of the MNS can be arranged for radial stability and/or to provide for linear magnetic forces. A variable reluctance device can be used to vary the resonant frequency of electroacoustic driver in response to a feedback signal.Type: ApplicationFiled: May 17, 2023Publication date: November 21, 2024Applicant: CLEAN ENERGY LABS, LLCInventors: Joseph F. Pinkerton, James A. Andrews, David A. Badger
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Publication number: 20240388854Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS). The magnets of the MNS can be arranged for radial stability and/or to provide for linear magnetic forces. A variable reluctance device can be used to vary the resonant frequency of electroacoustic driver in response to a feedback signal.Type: ApplicationFiled: May 17, 2023Publication date: November 21, 2024Applicant: CLEAN ENERGY LABS, LLCInventors: Joseph F. Pinkerton, James A. Andrews, David A. Badger
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Patent number: 12126979Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: GrantFiled: February 21, 2023Date of Patent: October 22, 2024Assignee: Brane Audio, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Publication number: 20240340595Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS). The MNS has an asymmetrical magnet design so that it can cancel or partially cancel the differential air pressure force that is different between inward and outward movement of a sound panel.Type: ApplicationFiled: July 18, 2022Publication date: October 10, 2024Applicant: BRANE AUDIO, LLCInventors: Joseph F. PINKERTON, James A. ANDREWS
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Patent number: 12003940Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: GrantFiled: February 21, 2023Date of Patent: June 4, 2024Assignee: Brane Audio, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Patent number: 12003943Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: GrantFiled: June 15, 2023Date of Patent: June 4, 2024Assignee: Brane Audio, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Patent number: 12003942Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: GrantFiled: February 21, 2023Date of Patent: June 4, 2024Assignee: Brane Audio, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Patent number: 12003941Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: GrantFiled: February 21, 2023Date of Patent: June 4, 2024Assignee: Brane Audio, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Publication number: 20230345180Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: ApplicationFiled: September 18, 2020Publication date: October 26, 2023Applicant: CLEAN ENERGY LABS, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Publication number: 20230328448Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: ApplicationFiled: June 15, 2023Publication date: October 12, 2023Applicant: CLEAN ENERGY LABS, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Publication number: 20230247364Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: ApplicationFiled: February 21, 2023Publication date: August 3, 2023Applicant: CLEAN ENERGY LABS, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Publication number: 20230217183Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: ApplicationFiled: February 21, 2023Publication date: July 6, 2023Applicant: CLEAN ENERGY LABS, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Publication number: 20230209274Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: ApplicationFiled: February 21, 2023Publication date: June 29, 2023Applicant: CLEAN ENERGY LABS, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Publication number: 20230199401Abstract: Force transducers for use in electrostatic drivers, including electrostatic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers having the force transducers can be used at all audio frequencies, including subwoofer frequencies.Type: ApplicationFiled: February 21, 2023Publication date: June 22, 2023Applicant: CLEAN ENERGY LABS, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Publication number: 20230199403Abstract: Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS) (such as reluctance assist drivers (RAD) and permanent magnet crown (PMC) drivers). The electroacoustic drivers can be used at all audio frequencies, including subwoofer frequencies. The magnetic negative springs of the electroacoustic drivers can cancel, or partially cancel, the large pressure forces on a sound panel (of an audio speaker) so that substantial subwoofer notes can be efficiently and cost effectively produced in small/portable speakers. The electroacoustic drivers can include a stabilizing/centering mechanism to overcome the destabilizing forces of a MNS that are too large for a voice coil alone to produce.Type: ApplicationFiled: February 21, 2023Publication date: June 22, 2023Applicant: CLEAN ENERGY LABS, LLCInventors: Joseph F. Pinkerton, David A. Badger, James A. Andrews, William Martin Lackowski, William Neil Everett
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Patent number: 11595751Abstract: Dipole audio speakers, and more particularly, voice controlled dipole audio speakers having at least one microphone located substantially along the null sound plane of the dipole audio speaker. An improved loudspeaker system that produces an improved audio quality for stereophonic sound. The improved loudspeaker utilizes conventional electro-dynamic drivers in a sealed chamber that produce sound primarily in the 20-300 Hz band coupled with electrostatic card stack drivers placed outside the sealed chamber that cover the remaining 98% of the audio frequency spectrum (300 Hz to 20 kHz). The improved loudspeaker system can also include multiple card stack drivers that are placed at angles with respect to each other to maximize audio fidelity.Type: GrantFiled: May 2, 2019Date of Patent: February 28, 2023Assignee: Clean Energy Labs, LLCInventors: Joseph F. Pinkerton, David A. Badger, William Martin Lackowski, James A. Andrews
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Publication number: 20210250680Abstract: Dipole audio speakers, and more particularly, voice controlled dipole audio speakers having at least one microphone located substantially along the null sound plane of the dipole audio speaker. An improved loudspeaker system that produces an improved audio quality for stereophonic sound. The improved loudspeaker utilizes conventional electro-dynamic drivers in a sealed chamber that produce sound primarily in the 20-300 Hz band coupled with electrostatic card stack drivers placed outside the sealed chamber that cover the remaining 98% of the audio frequency spectrum (300 Hz to 20 kHz). The improved loudspeaker system can also include multiple card stack drivers that are placed at angles with respect to each other to maximize audio fidelity.Type: ApplicationFiled: May 2, 2019Publication date: August 12, 2021Applicant: CLEAN ENERGY LABS, LLCInventors: Joseph F. Pinkerton, David A. Badger, William Martin Lackowski, James A. Andrews
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Publication number: 20160322881Abstract: Provided is a flywheel system, including: an armature coil set; and a rotor assembly having: a first rotor member; a second rotor member; a permanent magnet disposed between the first rotor member and the second rotor member; and a magnetic circuit formed by the first rotor member, the second rotor member, and the permanent magnet, wherein the magnetic circuit spans a gap between the first rotor member and the second rotor member into which at least part of the armature coil set is disposed.Type: ApplicationFiled: April 29, 2016Publication date: November 3, 2016Inventor: James A. Andrews