Patents by Inventor Dustin JEFFERIES
Dustin JEFFERIES 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: 11955863Abstract: A motor assembly includes a stator having a stator core, stator windings, and a routing insulator configured to electrically insulate the stator core from the stator windings; a rotor rotatably received within the stator; and a bearing bridge received at least partially within the routing insulator and including a main body forming a center pocket arranged to support a bearing of the rotor shaft. A circuit board is provided including a circuit board, and an overmold structure forming an annular body on a surface of the circuit board arranged to mate with the main body of the bearing bridge to substantially seal the center pocket from ingress of debris particles.Type: GrantFiled: February 1, 2022Date of Patent: April 9, 2024Assignee: Black & Decker Inc.Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori, Kristopher Cochran
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Patent number: 11876424Abstract: A motor is provided including: a stator including a stator core, stator windings, and an end insulator; a rotor rotatably received within the stator; and stator terminals supported by the routing insulator and extending away from the stator. Each stator terminal includes a main body having a curved portion, a tang portion folded over the main body and receiving a portion of a magnet wire therein to make an electrical connection with at least one of the stator windings, and a terminal pin projecting axially away from the stator core. The stator core has a maximum diameter of less than or equal to approximately 34 mm defining an outer envelope of the stator, and the stator terminals are fully contained within the outer envelope.Type: GrantFiled: February 1, 2022Date of Patent: January 16, 2024Assignee: Black & Decker Inc.Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori, Kristopher Cochran
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Patent number: 11870316Abstract: A motor is provided including a motor housing having an open end; a stator disposed within the motor housing and including a stator core, stator windings, and an end insulator that electrically insulate the stator core from the stator windings and includes an annular body; a rotor rotatably received within the stator and including a rotor shaft extending along a longitudinal axis and permanent magnets; and a bearing bridge including a center pocket arranged to support a bearing of the rotor shaft. The bearing bridge is received at least partially within the end insulator. The annular body of the end insulator includes at least one peripheral opening located within the motor housing, and the bearing bridge is radially piloted relative to the motor housing via a retaining member received through the at least one peripheral opening.Type: GrantFiled: February 1, 2022Date of Patent: January 9, 2024Assignee: BLACK & DECKER, INC.Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori, Kristopher Cochran
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Publication number: 20230421023Abstract: A power tool is provided including a housing having an elongated body having an outer diameter that is at most approximately 34 mm, and an outer-rotor electric motor disposed within the elongated body of the housing. The electric motor is configured to provide a maximum power output of approximately greater than or equal to 470 watts and a maximum output speed of greater than 25,000 rotations-per-minutes (RPM) when powered by the battery pack having a maximum rated voltage of 20V and rated capacity of 2 Amp-hours.Type: ApplicationFiled: July 31, 2023Publication date: December 28, 2023Applicant: BLACK & DECKER, INC.Inventors: Dustin Jefferies, Marcus E. E. Rydin, Jarrett A. DUNSTON, Timothy W. FRENCH, Gale A. HESLOP, Ross A. BILLINGS
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Patent number: 11855521Abstract: A power tool is provided including a housing including a grip portion; and a brushless direct-current (BLDC) motor at least partially disposed within the grip portion of the housing. The motor includes a stator having a rotor core, a rotor, and front and rear bearing support structures. The stator core includes a non-segmented construction with a maximum diameter of approximately smaller than or equal to 34 mm, and a ratio of a motor size (Km) constant of the motor to a length of the motor is in the range of approximately 0.39 to 0.59 (Nmm/?W)/mm. When powered by a 20 V battery pack, a ratio of a maximum power output of the motor to a volume of the motor is at least approximately 0.0106 W/mm{circumflex over (?)}3.Type: GrantFiled: February 1, 2022Date of Patent: December 26, 2023Assignee: BLACK & DECKER, INC.Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori, John B. Fogle, John D. Cox, Kristopher Cochran, Barak N. Gohn
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Patent number: 11837935Abstract: A motor is provided including a motor housing having a substantially cylindrical body and at least one open end, a stator disposed within the motor housing, and a rotor rotatably received within the stator. The motor further includes a bearing bridge mounted on the open end of the motor housing and including a main body forming a center pocket arranged to support a rotor shaft, an outer ring configured to be fittingly received through the open end of the motor housing, and at least one fastening receptacle formed radially through the outer ring. The motor housing includes a side opening through which a fastener is radially fastened into the fastening receptable to secure the bearing bridge to the motor housing.Type: GrantFiled: February 1, 2022Date of Patent: December 5, 2023Assignee: BLACK & DECKER, INC.Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori
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Patent number: 11757330Abstract: An outer-rotor brushless direct-current (BLDC) motor is provided including a rotor shaft, a motor housing having an open end and a closed end that supports a first motor bearing, a stator core having an aperture extending therethrough, a stator mount coupled to the open end and including an elongated cylindrical member projecting into the aperture of the stator core and a radial wall that supports a second motor bearing, an outer rotor, and a rotor mount including an outer rim arranged to couple to the outer rotor and an inner body mounted on the rotor shaft. An intermediate bearing is received at least partially within the aperture of the stator core to radially support the stator core relative to the rotor shaft.Type: GrantFiled: December 17, 2020Date of Patent: September 12, 2023Assignee: BLACK & DECKER, INC.Inventors: Dustin Jefferies, Marcus E. E. Rydin, Jarrett A. Dunston, Timothy W. French, Gale A. Heslop, Ross A. Billings
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Patent number: 11747462Abstract: The disclosed radar system may include a radar mechanism comprising a transmitter and at least one receiver. The radar system may also include a signal generator that generates a frequency-modulated radar signal. In addition, the radar system may include at least one frequency multiplier that, after multiplying a frequency of the frequency-modulated radar signal by a certain factor, synchronously passes the frequency-modulated radar signal to (1) the transmitter to be transmitted to at least one transponder located on a wearable device and (2) a processing device communicatively coupled to the receiver. The processing device may (1) detect a signal returned to the receiver from the transponder in response to the frequency-modulated radar signal and (2) calculate a distance between the transponder and the receiver based at least in part on an analysis of the signal returned from the transponder and the frequency-modulated radar signal received from the frequency multiplier.Type: GrantFiled: December 4, 2019Date of Patent: September 5, 2023Assignee: Meta Platforms Technologies, LLCInventors: Riccardo DeSalvo, Giuseppe Castaldi, Andrea Cusano, Vincenzo Galdi, Paolo Mattera, Roberto Parente, Fereydoun Daneshgaran, Joseph Minh Tien, Dustin Jeffery Gordon Krogstad
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Publication number: 20220354052Abstract: A power tool is provided including a housing, a brushless direct-current (BLDC) motor, and a gear assembly. The motor includes a stator having an inner stator, a rotor shaft extending along a center axis and including a first bearing and a second bearing; an outer rotor, a first end cap, and a second end cap. The first end cap includes a radial back plate having a center opening in the radial back plate through which the rotor shaft extends and pins projecting around the rotor shaft and parallel to the rotor shaft. The gear assembly is mounted on the first end cap and includes planetary gears supported by the pins in engagement with the rotor shaft.Type: ApplicationFiled: May 2, 2022Publication date: November 10, 2022Inventors: Dustin Jefferies, Bhanuprasad V. Gorti, John B. Fogle, John D. Cox
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Patent number: 11454700Abstract: A radar system may include (1) a wearable device, (2) a set of radar devices secured to the wearable device, wherein the set of radar devices (A) transmit radar signals to at least one transponder and (B) receive the radar signals, (3) an error-mitigation device secured to the wearable device, wherein the error-mitigation device provides data for mitigating position errors in triangulation calculations involving the radar signals, and (4) at least one processing device communicatively coupled to the set of radar devices and the error-mitigation device, wherein the processing device (A) calculates, based at least in part on roundtrip flight times of the radar signals and the data, distances between the set of radar devices and the transponder and (B) triangulates, based at least in part on the distances, a three-dimensional location of the transponder relative to the wearable device. Various other apparatuses, systems, and methods are also disclosed.Type: GrantFiled: March 31, 2020Date of Patent: September 27, 2022Assignee: Meta Platforms Technologies, LLCInventors: Riccardo DeSalvo, Giuseppe Castaldi, Andrea Cusano, Vincenzo Galdi, Paolo Mattera, Roberto Parente, Fereydoun Daneshgaran, Joseph Minh Tien, Dustin Jeffery Gordon Krogstad, Omar Mikhail Ilagan Perez
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Publication number: 20220247251Abstract: A motor is provided including: a stator including a stator core, stator windings, and an end insulator; a rotor rotatably received within the stator; and stator terminals supported by the routing insulator and extending away from the stator. Each stator terminal includes a main body having a curved portion, a tang portion folded over the main body and receiving a portion of a magnet wire therein to make an electrical connection with at least one of the stator windings, and a terminal pin projecting axially away from the stator core. The stator core has a maximum diameter of less than or equal to approximately 34 mm defining an outer envelope of the stator, and the stator terminals are fully contained within the outer envelope.Type: ApplicationFiled: February 1, 2022Publication date: August 4, 2022Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori, Kristopher Cochran
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Publication number: 20220247269Abstract: A power tool is provided including a housing including a grip portion; and a brushless direct-current (BLDC) motor at least partially disposed within the grip portion of the housing. The motor includes a stator having a rotor core, a rotor, and front and rear bearing support structures. The stator core includes a non-segmented construction with a maximum diameter of approximately smaller than or equal to 34 mm, and a ratio of a motor size (Km) constant of the motor to a length of the motor is in the range of approximately 0.39 to 0.59 (Nmm/?W)/mm. When powered by a 20V battery pack, a ratio of a maximum power output of the motor to a volume of the motor is at least approximately 0.0106 W/mm{circumflex over (?)}3.Type: ApplicationFiled: February 1, 2022Publication date: August 4, 2022Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori, John B. Fogle, John D. Cox, Kristopher Cochran, Barak N. Gohn
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Publication number: 20220247270Abstract: A power tool is provided including a housing having a grip portion with a grip circumference of smaller than or equal to approximately 120 mm; and a brushless direct-current (BLDC) motor at least partially disposed within the grip portion of the housing and configured to output a maximum power output of at least 450 watts. The motor includes a stator including a stator core and stator windings; and a rotor rotatably received within the stator and including a rotor shaft extending along a longitudinal axis and a series of permanent magnet rings mounted sequentially along the longitudinal axis and surrounding the rotor shaft, each permanent magnet including a plurality of magnetic poles.Type: ApplicationFiled: February 1, 2022Publication date: August 4, 2022Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori, John B. Fogle, Kristopher Cochran
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Publication number: 20220247258Abstract: A motor is provided including a motor housing having a substantially cylindrical body and at least one open end, a stator disposed within the motor housing, and a rotor rotatably received within the stator. The motor further includes a bearing bridge mounted on the open end of the motor housing and including a main body forming a center pocket arranged to support a rotor shaft, an outer ring configured to be fittingly received through the open end of the motor housing, and at least one fastening receptacle formed radially through the outer ring. The motor housing includes a side opening through which a fastener is radially fastened into the fastening receptable to secure the bearing bridge to the motor housing.Type: ApplicationFiled: February 1, 2022Publication date: August 4, 2022Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori
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Publication number: 20220247257Abstract: A motor is provided including a motor housing having an open end; a stator disposed within the motor housing and including a stator core, stator windings, and an end insulator that electrically insulate the stator core from the stator windings and includes an annular body; a rotor rotatably received within the stator and including a rotor shaft extending along a longitudinal axis and permanent magnets; and a bearing bridge including a center pocket arranged to support a bearing of the rotor shaft. The bearing bridge is received at least partially within the end insulator. The annular body of the end insulator includes at least one peripheral opening located within the motor housing, and the bearing bridge is radially piloted relative to the motor housing via a retaining member received through the at least one peripheral opening.Type: ApplicationFiled: February 1, 2022Publication date: August 4, 2022Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori, Kristopher Cochran
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Publication number: 20220247259Abstract: A motor assembly includes a stator having a stator core, stator windings, and a routing insulator configured to electrically insulate the stator core from the stator windings; a rotor rotatably received within the stator; and a bearing bridge received at least partially within the routing insulator and including a main body forming a center pocket arranged to support a bearing of the rotor shaft. A circuit board is provided including a circuit board, and an overmold structure forming an annular body on a surface of the circuit board arranged to mate with the main body of the bearing bridge to substantially seal the center pocket from ingress of debris particles.Type: ApplicationFiled: February 1, 2022Publication date: August 4, 2022Inventors: Dustin Jefferies, David J. Smith, Marcus E. E. Rydin, Justin H. Ayers, Sumiteru Mori, Kristopher Cochran
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Patent number: 11320527Abstract: The disclosed radar system may include a radar mechanism comprising a transmitter and at least one receiver. The radar system may also include a signal generator that generates a frequency-modulated radar signal. In addition, the radar system may include a delay mechanism that (1) receives the frequency-modulated radar signal from the signal generator and (2) after a certain period of delay, passes the frequency-modulated radar signal to the transmitter to be transmitted to a transponder located on a wearable artificial reality device. The radar system may also include a processing device that (1) receives the frequency-modulated radar signal from the signal generator, (2) detects a signal returned to the receiver from the transponder, and (3) calculates a distance between the transponder and the receiver based at least in part on an analysis of the signal returned from the transponder and the frequency-modulated radar signal received from the signal generator.Type: GrantFiled: December 20, 2019Date of Patent: May 3, 2022Assignee: Facebook Technologies, LLCInventors: Riccardo DeSalvo, Giuseppe Castaldi, Andrea Cusano, Vincenzo Galdi, Paolo Mattera, Roberto Parente, Fereydoun Daneshgaran, Joseph Minh Tien, Dustin Jeffery Gordon Krogstad
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Patent number: 11211664Abstract: This application relates to a power tool system including a plurality of power tools, a plurality of battery packs and at least one battery pack charger and method for operating the power tools with the battery packs. This application also relates to a method for charging the battery packs and a method for monitoring a state of charge of the battery pack. In one implementation, the system includes an existing battery pack designed to provide (output) a relatively low voltage, an existing power tool designed to operate at the relatively low voltage, a new battery pack designed to provide (output) the relatively low voltage and a relatively high voltage, and a new power tool designed to operate at the relatively high voltage.Type: GrantFiled: June 24, 2019Date of Patent: December 28, 2021Assignee: Black & Decker Inc.Inventors: Luke R. Barton, Nathan J. Cruise, Abhisheka Moturu, Dustin Jefferies, Christine H. Potter, Michael W. Roberts, Michael Varipatis, Fugen Qin, Daniel J. Albrecht, Michael J. Aronoff
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Publication number: 20210194321Abstract: An outer-rotor brushless direct-current (BLDC) motor is provided including a rotor shaft, a motor housing having an open end and a closed end that supports a first motor bearing, a stator core having an aperture extending therethrough, a stator mount coupled to the open end and including an elongated cylindrical member projecting into the aperture of the stator core and a radial wall that supports a second motor bearing, an outer rotor, and a rotor mount including an outer rim arranged to couple to the outer rotor and an inner body mounted on the rotor shaft. An intermediate bearing is received at least partially within the aperture of the stator core to radially support the stator core relative to the rotor shaft.Type: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Inventors: Dustin Jefferies, Marcus Rydin, Jarrett A. DUNSTON, Timothy W. FRENCH, Gale A. HESLOP, Ross A. BILLINGS
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Patent number: 10613188Abstract: A system includes a locatable glove and a pose determination device. The locatable glove includes a glove body worn over a hand of a user, and a plurality of positioning transponders. The positioning transponders are coupled to the glove body at various positions on the glove body, and each re-radiates a received signal, the re-radiated signal unique to the positioning transponder. The pose determination device includes a plurality of antennas and a controller. The antennas are each configured to receive the unique signals re-radiated by the positioning transponders. The antennas are physically separated from each other. The controller is communicatively coupled to the plurality of antennas, and is configured to determine, for each of the received unique signals, a location of the position on the locatable glove of the positioning transponder corresponding to the unique signal.Type: GrantFiled: September 12, 2019Date of Patent: April 7, 2020Assignee: Facebook Technologies, LLCInventors: Giuseppe Castaldi, Andrea Cusano, Vincenzo Galdi, Paolo Mattera, Roberto Parente, Joseph Minh Tien, Dustin Jeffery Gordon Krogstad, Riccardo DeSalvo, Yi Zhao