Patents by Inventor David S. Kumka
David S. Kumka 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: 10720789Abstract: A wireless charging system including a transmitter and a receiver. The transmitter is formed of a coil of wire that includes a first loop portion, a second loop portion, and a crossing portion. The crossing portion electrically couples the first loop portion and the second loop portion such that when current is generated in the coil, electrical current flows through the first loop portion in a different rotational direction than in the second loop portion. The receiver is formed of a ferromagnetic core and multiple (e.g., three) coils disposed about the ferromagnetic core. Each coil may be disposed about a different axis of the core such that current may be induced in at least one of the coils by a magnetic field in any direction.Type: GrantFiled: March 22, 2019Date of Patent: July 21, 2020Assignee: Apple Inc.Inventors: David W. Ritter, David B. Kosecoff, David S. Kumka, Madhusudanan Keezhveedi Sampath, Steven Charles Michalske, Tavys Q. Ashcroft, Aditya Rao, Ariadne Smith
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Publication number: 20190222052Abstract: A wireless charging system including a transmitter and a receiver. The transmitter is formed of a coil of wire that includes a first loop portion, a second loop portion, and a crossing portion. The crossing portion electrically couples the first loop portion and the second loop portion such that when current is generated in the coil, electrical current flows through the first loop portion in a different rotational direction than in the second loop portion. The receiver is formed of a ferromagnetic core and multiple (e.g., three) coils disposed about the ferromagnetic core. Each coil may be disposed about a different axis of the core such that current may be induced in at least one of the coils by a magnetic field in any direction.Type: ApplicationFiled: March 22, 2019Publication date: July 18, 2019Applicant: Apple Inc.Inventors: David W. Ritter, David B. Kosecoff, David S. Kumka, Madhusudanan Keezhveedi Sampath, Steven Charles Michalske, Tavys Q. Ashcroft, Aditya Rao, Ariadne Smith
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Patent number: 10333333Abstract: A wireless charging table comprising a table top having an upper surface upon which one or more electronic devices can be placed, a wireless charging transmitter positioned under the upper surface of the table top, the wireless charging transmitter comprising a plurality of transmitter coils that define a charging region at the upper surface of the table top, and a power distribution system operatively coupled to the wireless charging transmitter, the power distribution system configured to receive power from an alternating current (AC) power source and distribute power to the wireless charging transmitter. The plurality of transmitter coils include at least a first transmitter coil comprising: a first loop portion; a second loop portion; and a crossing portion comprising overlapping conductive paths that electrically couple the first loop portion.Type: GrantFiled: June 16, 2016Date of Patent: June 25, 2019Assignee: Apple Inc.Inventors: David W. Ritter, David B. Kosecoff, David S. Kumka, Madhusudanan Keezhveedi Sampath, Steven Charles Michalske, Tavys Q. Ashcroft, Aditya Rao, Ariadne Smith
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Patent number: 10282339Abstract: Systems for presenting electrically supported devices and methods for assembling the same are provided. A platform assembly may be equipped with one or more features for enabling a support module assembly to be easily removed from a bottom table surface of a table and replaced with another support module subassembly (e.g., to physically upgrade the support module assembly) while maintaining the position of a user device and/or cable assembly with respect to the table).Type: GrantFiled: September 14, 2017Date of Patent: May 7, 2019Assignee: APPLE INC.Inventors: Clayton R. Woosley, Aditya Rao, Bo Feng, David S. Kumka, Joseph I. Briskey, Min Chul Kim, Paul Z. Yuan, Yufan Liao, George Tziviskos, Charles A. Schwalbach, Eric H. Wong, David B. Kosecoff, Steven C. Michalske, Ariadne G. Smith
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Patent number: 10277056Abstract: A wireless charging system including a transmitter and a receiver. The transmitter is formed of a coil of wire that includes a first loop portion, a second loop portion, and a crossing portion. The crossing portion electrically couples the first loop portion and the second loop portion such that when current is generated in the coil, electrical current flows through the first loop portion in a different rotational direction than in the second loop portion. The receiver is formed of a ferromagnetic core and multiple (e.g., three) coils disposed about the ferromagnetic core. Each coil may be disposed about a different axis of the core such that current may be induced in at least one of the coils by a magnetic field in any direction.Type: GrantFiled: June 16, 2016Date of Patent: April 30, 2019Assignee: Apple Inc.Inventors: David W. Ritter, David B. Kosecoff, David S. Kumka, Madhusudanan Keezhveedi Sampath, Steven Charles Michalske, Tavys Q. Ashcroft, Aditya Rao, Ariadne Smith
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Publication number: 20180074988Abstract: Systems for presenting electrically supported devices and methods for assembling the same are provided.Type: ApplicationFiled: September 14, 2017Publication date: March 15, 2018Inventors: Clayton R. Woosley, Aditya Rao, Bo Feng, David S. Kumka, Joseph I. Briskey, Min Chul Kim, Paul Z. Yuan, Yufan Liao, George Tziviskos, Charles A. Schwalbach, Eric H. Wong, David B. Kosecoff, Steven C. Michalske, Ariadne G. Smith
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Publication number: 20160372960Abstract: A wireless charging system including a transmitter and a receiver. The transmitter is formed of a coil of wire that includes a first loop portion, a second loop portion, and a crossing portion. The crossing portion electrically couples the first loop portion and the second loop portion such that when current is generated in the coil, electrical current flows through the first loop portion in a different rotational direction than in the second loop portion. The receiver is formed of a ferromagnetic core and multiple (e.g., three) coils disposed about the ferromagnetic core. Each coil may be disposed about a different axis of the core such that current may be induced in at least one of the coils by a magnetic field in any direction.Type: ApplicationFiled: June 16, 2016Publication date: December 22, 2016Applicant: Apple Inc.Inventors: David W. Ritter, David B. Kosecoff, David S. Kumka, Madhusudanan Keezhveedi Sampath, Steven Charles Michalske, Tavys Q. Ashcroft, Aditya Rao, Ariadne Smith
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Publication number: 20160372961Abstract: A wireless charging table comprising a table top having an upper surface upon which one or more electronic devices can be placed, a wireless charging transmitter positioned under the upper surface of the table top, the wireless charging transmitter comprising a plurality of transmitter coils that define a charging region at the upper surface of the table top, and a power distribution system operatively coupled to the wireless charging transmitter, the power distribution system configured to receive power from an alternating current (AC) power source and distribute power to the wireless charging transmitter. The plurality of transmitter coils include at least a first transmitter coil comprising: a first loop portion; a second loop portion; and a crossing portion comprising overlapping conductive paths that electrically couple the first loop portion.Type: ApplicationFiled: June 16, 2016Publication date: December 22, 2016Applicant: Apple Inc.Inventors: David W. Ritter, David B. Kosecoff, David S. Kumka, Madhusudanan Keezhveedi Sampath, Steven Charles Michalske, Tavys Q. Ashcroft, Aditya Rao, Ariadne Smith