Patents by Inventor Peter Madden
Peter Madden 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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Publication number: 20230318389Abstract: A stator assembly typically includes at least one stator core assembly that generates a magnetic field to rotate a rotor. The stator core assembly includes a core and a coil wrapped around the core to receive a current thus generating the magnetic field. To improve the performance and manufacturability of the stator assembly, a stator core assembly may include an insulator, disposed between the coil and the core, formed as a single flat sheet. A flat manufacturing process allows greater control of the insulator geometry, a broader range of materials to form the insulator, and patterning of structural features into the insulator to improve assembly and performance. The coil of the stator core assembly may also be electrically coupled to a bus bar using a fastener process and/or a crimping process that consumes less energy and occurs at lower temperatures than conventional soldering or welding processes.Type: ApplicationFiled: February 16, 2023Publication date: October 5, 2023Applicant: Indigo Technologies, Inc.Inventors: Adam Wahab, Scott T. Purchase, Peter Madden, Grant W. Kristofek
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Publication number: 20230033646Abstract: Conventional axial flux motors typically include multiple rotors and stators resulting in a larger and heavier motor. Additionally, conventional axial flux motors include a housing to protect the rotors and stators, but the housing is often difficult to seal from the environment leading to risks of contaminants (e.g., dirt, water) infiltrating the motor and causing failure over time. The present invention overcomes these limitations by disclosing an axial flux motor with a single rotor and two stators. The use of a single rotor reduces the size and weight of the motor. An inboard housing and an outboard housing mechanically support the two stators and are joined together to define an interior cavity. A ring seal is disposed between the two housings to ensure the interior cavity is sealed. Additionally, the two stators may actuate multiple degrees of freedom (DOF) including the rotation of a wheel and actuation of a suspension.Type: ApplicationFiled: August 8, 2022Publication date: February 2, 2023Applicant: Indigo Technologies, Inc.Inventors: Scott T. Purchase, Peter Madden, Rachel A. Dias Carlson
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Publication number: 20230006522Abstract: An electric drive system including: a rotary motor system including a hub assembly, a first rotating assembly, a second rotating assembly, and a third rotating assembly, wherein the hub assembly defines a rotational axis about which the first rotating assembly, the second rotating assembly, and the third rotating assembly are coaxially aligned and are capable of independent rotational movement independent of each other; a multi-bar linkage mechanism connected to each of the first and third rotating assemblies and connected to the hub assembly and constraining movement of the hub assembly so that the rotational axis of the hub assembly moves along a defined path that is in a transverse direction relative to the rotational axis and wherein the multi-bar linkage mechanism causes the rotational axis of the hub assembly to translate along the defined path in response to relative rotation of the first rotating assembly and the third rotating assembly with respect to each other.Type: ApplicationFiled: June 13, 2022Publication date: January 5, 2023Applicant: Indigo Technologies, Inc.Inventors: Ian W. HUNTER, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas MORIARTY, Scott T. Purchase
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Patent number: 11411450Abstract: Conventional axial flux motors typically include multiple rotors and stators resulting in a larger and heavier motor. Additionally, conventional axial flux motors include a housing to protect the rotors and stators, but the housing is often difficult to seal from the environment leading to risks of contaminants (e.g., dirt, water) infiltrating the motor and causing failure over time. The present invention overcomes these limitations by disclosing an axial flux motor with a single rotor and two stators. The use of a single rotor reduces the size and weight of the motor. An inboard housing and an outboard housing mechanically support the two stators and are joined together to define an interior cavity. A ring seal is disposed between the two housings to ensure the interior cavity is sealed. Additionally, the two stators may actuate multiple degrees of freedom (DOF) including the rotation of a wheel and actuation of a suspension.Type: GrantFiled: June 17, 2019Date of Patent: August 9, 2022Assignee: Indigo Technologies, Inc.Inventors: Scott T. Purchase, Peter Madden, Rachel A. Dias Carlson
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Patent number: 11368076Abstract: An electric drive system including: a rotary motor system including a hub assembly, a first rotating assembly, a second rotating assembly, and a third rotating assembly, wherein the hub assembly defines a rotational axis about which the first rotating assembly, the second rotating assembly, and the third rotating assembly are coaxially aligned and are capable of independent rotational movement independent of each other; a multi-bar linkage mechanism connected to each of the first and third rotating assemblies and connected to the hub assembly and constraining movement of the hub assembly so that the rotational axis of the hub assembly moves along a defined path that is in a transverse direction relative to the rotational axis and wherein the multi-bar linkage mechanism causes the rotational axis of the hub assembly to translate along the defined path in response to relative rotation of the first rotating assembly and the third rotating assembly with respect to each other.Type: GrantFiled: February 16, 2021Date of Patent: June 21, 2022Assignee: Indigo Technologies, Inc.Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas Moriarty, Scott T. Purchase
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Publication number: 20210283970Abstract: An exemplary actuator includes a motor, a transmission, and a support structure. The motor includes two torque sources that apply respective input torques to a rotor, which rotates about a rotation axis in response to a net input torque. The torque sources are arranged such that the input torques are additive, resulting in a vector-summated torque output. The torque sources also generate corresponding reactive torques that are applied to the first stator and the second stator. The transmission couples and constrains the first stator and the second stator such that rotational motion of one stator causes counter rotation of the other stator. Thus, the reactive torques are subtractive resulting a differential torque output. In some applications, the differential torque output is used to actuate a suspension of a vehicle. The actuator is also coupled to the vehicle via the support structure, which also reflects a reaction force or torque to actuate other subsystems (e.g., anti-dive, anti-squat).Type: ApplicationFiled: June 2, 2021Publication date: September 16, 2021Applicant: Indigo Technologies, Inc.Inventors: Thomas MORIARTY, Marco GIOVANARDI, Hector A. Inirio, Peter Madden
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Publication number: 20210194302Abstract: Conventional axial flux motors typically include multiple rotors and stators resulting in a larger and heavier motor. Additionally, conventional axial flux motors include a housing to protect the rotors and stators, but the housing is often difficult to seal from the environment leading to risks of contaminants (e.g., dirt, water) infiltrating the motor and causing failure over time. The present invention overcomes these limitations by disclosing an axial flux motor with a single rotor and two stators. The use of a single rotor reduces the size and weight of the motor. An inboard housing and an outboard housing mechanically support the two stators and are joined together to define an interior cavity. A ring seal is disposed between the two housings to ensure the interior cavity is sealed. Additionally, the two stators may actuate multiple degrees of freedom (DOF) including the rotation of a wheel and actuation of a suspension.Type: ApplicationFiled: June 17, 2019Publication date: June 24, 2021Inventors: Scott T. Purchase, Peter Madden, Rachel A. Dias Carlson
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Publication number: 20210167675Abstract: An electric drive system including: a rotary motor system including a hub assembly, a first rotating assembly, a second rotating assembly, and a third rotating assembly, wherein the hub assembly defines a rotational axis about which the first rotating assembly, the second rotating assembly, and the third rotating assembly are coaxially aligned and are capable of independent rotational movement independent of each other; a multi-bar linkage mechanism connected to each of the first and third rotating assemblies and connected to the hub assembly and constraining movement of the hub assembly so that the rotational axis of the hub assembly moves along a defined path that is in a transverse direction relative to the rotational axis and wherein the multi-bar linkage mechanism causes the rotational axis of the hub assembly to translate along the defined path in response to relative rotation of the first rotating assembly and the third rotating assembly with respect to each other.Type: ApplicationFiled: February 16, 2021Publication date: June 3, 2021Inventors: Ian W. HUNTER, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas MORIARTY, Scott T. Purchase
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Patent number: 10938285Abstract: An electric drive system including: a rotary motor system including a hub assembly, a first rotating assembly, a second rotating assembly, and a third rotating assembly, wherein the hub assembly defines a rotational axis about which the first rotating assembly, the second rotating assembly, and the third rotating assembly are coaxially aligned and are capable of independent rotational movement independent of each other; a multi-bar linkage mechanism connected to each of the first and third rotating assemblies and connected to the hub assembly and constraining movement of the hub assembly so that the rotational axis of the hub assembly moves along a defined path that is in a transverse direction relative to the rotational axis and wherein the multi-bar linkage mechanism causes the rotational axis of the hub assembly to translate along the defined path in response to relative rotation of the first rotating assembly and the third rotating assembly with respect to each other.Type: GrantFiled: September 19, 2019Date of Patent: March 2, 2021Assignee: Indigo Technologies, Inc.Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas Moriarty, Scott T. Purchase
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Patent number: 10644578Abstract: An electric drive system including: a rotary motor system including a hub assembly, a first rotating assembly, a second rotating assembly, and a third rotating assembly, wherein the hub assembly defines a rotational axis about which the first rotating assembly, the second rotating assembly, and the third rotating assembly are coaxially aligned and are capable of independent rotational movement independent of each other; a mechanical guide system supporting the hub assembly and constraining movement of the hub assembly so that the rotational axis of the hub assembly moves along a defined path that is in a transverse direction relative to the rotational axis; and a multi-bar linkage mechanism connecting to each of the first and third rotating assemblies and connecting the hub assembly to the mechanical guide system, wherein the multi-bar linkage mechanism causes the rotational axis of the hub assembly to translate along the defined path in response to relative rotation of the first rotating assembly and third rType: GrantFiled: September 12, 2017Date of Patent: May 5, 2020Assignee: Indigo Technologies, Inc.Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas Moriarty, Scott T. Purchase
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Publication number: 20200112239Abstract: An electric drive system including: a rotary motor system including a hub assembly, a first rotating assembly, a second rotating assembly, and a third rotating assembly, wherein the hub assembly defines a rotational axis about which the first rotating assembly, the second rotating assembly, and the third rotating assembly are coaxially aligned and are capable of independent rotational movement independent of each other; a multi-bar linkage mechanism connected to each of the first and third rotating assemblies and connected to the hub assembly and constraining movement of the hub assembly so that the rotational axis of the hub assembly moves along a defined path that is in a transverse direction relative to the rotational axis and wherein the multi-bar linkage mechanism causes the rotational axis of the hub assembly to translate along the defined path in response to relative rotation of the first rotating assembly and the third rotating assembly with respect to each other.Type: ApplicationFiled: September 19, 2019Publication date: April 9, 2020Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas MORIARTY, Scott T. Purchase
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Patent number: 10476360Abstract: An electric motor including: a hub assembly defining a rotational axis; a magnetic rotor assembly; a first coil stator assembly; a second coil stator assembly; and a system of rotor bearings rotatably supporting each of the magnetic rotor assembly, the first coil stator assembly, and the second coil stator assembly on the hub assembly so that each of the magnetic rotor assembly, the first coil stator assembly, and the second coil stator assembly are rotatable about the rotational axis independently of each other.Type: GrantFiled: September 12, 2017Date of Patent: November 12, 2019Assignee: Indigo Technologies, Inc.Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas Moriarty, Scott T. Purchase
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Publication number: 20070215839Abstract: The synthesis of thiophene based conducting polymer molecular actuators, exhibiting electrically triggered molecular conformational transitions is reported. Actuation is believed to be the result of conformational rearrangement of the polymer backbone at the molecular level, not simply ion intercalation in the bulk polymer chain upon electrochemical activation. Molecular actuation results from ?-? stacking of thiophene oligomers upon oxidation, producing a reversible molecular displacement that leads to surprising material properties, such as electrically controllable porosity and large strains. The existence of active molecular conformational changes is supported by in situ electrochemical data. Single molecule techniques have been used to characterize the molecular actuators.Type: ApplicationFiled: November 21, 2006Publication date: September 20, 2007Applicant: Massachusetts Institute of TechnologyInventors: Patrick Anquetil, Ian Hunter, John Madden, Peter Madden, Anthony Pullen, Timothy Swager, Bing Xu, Hsiao-hua Yu
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Publication number: 20030083618Abstract: A transdermal transport device includes a reservoir for holding a formulation of an active principle, a needle with a bore through which the formulation is transported between the reservoir and a target area of a biological body, and an electrolytic actuator which pumps the formulation through the bore.Type: ApplicationFiled: October 21, 2002Publication date: May 1, 2003Applicant: Massachusetts Institute of TechnologyInventors: Aimee B. Angel, Ian W. Hunter, Peter Madden
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Patent number: 6207034Abstract: A method of manufacturing a polymer transistor having a controllable gap is provided in an embodiment. In the embodiment, a conducting tip is positioned proximate to a conducting surface so as to form a gap, an electrochemical medium is introduced in contact with the conducting tip and the conducting surface, and an electrical potential is applied across the electrochemical medium so as to deposit a conductive polymer that electrically bridges the formed gap. In another embodiment, a counter electrode is provided in the electrochemical solution, facilitating processing in which the electrochemical potential at the conducting tip and at the conducting surface are the same and there is a return path for electrical current through the counter electrode. Repositioning of the tip during and after polymer deposition provides, in a further embodiment, adds additional capability with respect to gap control and polymer properties.Type: GrantFiled: December 3, 1998Date of Patent: March 27, 2001Assignee: Massachusetts Institute of TechnologyInventors: Peter Madden, John Madden, Ian W. Hunter
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Patent number: 5995936Abstract: A system and method of automatically assembling voice information and image information into reports or data bases is disclosed. The system uses a microphone connected to a computer for converting spoken words into text and then parses the text to distinguish commands for execution from text information for the report. Commands for image acquisition cause digital images to be inserted within the report or within a database file. Images are associated with text information or with specific locations within the text information. In dependence upon the commands and the associations, a report is automatically generated from pre-recorded information.Type: GrantFiled: February 4, 1997Date of Patent: November 30, 1999Inventors: Louis Brais, Colin Brenan, Peter Madden