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).

  • Publication number: 20230318389
    Abstract: 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: Application
    Filed: February 16, 2023
    Publication date: October 5, 2023
    Applicant: Indigo Technologies, Inc.
    Inventors: Adam Wahab, Scott T. Purchase, Peter Madden, Grant W. Kristofek
  • Publication number: 20230033646
    Abstract: 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: Application
    Filed: August 8, 2022
    Publication date: February 2, 2023
    Applicant: Indigo Technologies, Inc.
    Inventors: Scott T. Purchase, Peter Madden, Rachel A. Dias Carlson
  • Publication number: 20230006522
    Abstract: 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: Application
    Filed: June 13, 2022
    Publication date: January 5, 2023
    Applicant: Indigo Technologies, Inc.
    Inventors: Ian W. HUNTER, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas MORIARTY, Scott T. Purchase
  • Patent number: 11411450
    Abstract: 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: Grant
    Filed: June 17, 2019
    Date of Patent: August 9, 2022
    Assignee: Indigo Technologies, Inc.
    Inventors: Scott T. Purchase, Peter Madden, Rachel A. Dias Carlson
  • Patent number: 11368076
    Abstract: 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: Grant
    Filed: February 16, 2021
    Date of Patent: June 21, 2022
    Assignee: Indigo Technologies, Inc.
    Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas Moriarty, Scott T. Purchase
  • Publication number: 20210283970
    Abstract: 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: Application
    Filed: June 2, 2021
    Publication date: September 16, 2021
    Applicant: Indigo Technologies, Inc.
    Inventors: Thomas MORIARTY, Marco GIOVANARDI, Hector A. Inirio, Peter Madden
  • Publication number: 20210194302
    Abstract: 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: Application
    Filed: June 17, 2019
    Publication date: June 24, 2021
    Inventors: Scott T. Purchase, Peter Madden, Rachel A. Dias Carlson
  • Publication number: 20210167675
    Abstract: 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: Application
    Filed: February 16, 2021
    Publication date: June 3, 2021
    Inventors: Ian W. HUNTER, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas MORIARTY, Scott T. Purchase
  • Patent number: 10938285
    Abstract: 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: Grant
    Filed: September 19, 2019
    Date of Patent: March 2, 2021
    Assignee: Indigo Technologies, Inc.
    Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas Moriarty, Scott T. Purchase
  • Patent number: 10644578
    Abstract: 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 r
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: May 5, 2020
    Assignee: Indigo Technologies, Inc.
    Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas Moriarty, Scott T. Purchase
  • Publication number: 20200112239
    Abstract: 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: Application
    Filed: September 19, 2019
    Publication date: April 9, 2020
    Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas MORIARTY, Scott T. Purchase
  • Patent number: 10476360
    Abstract: 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: Grant
    Filed: September 12, 2017
    Date of Patent: November 12, 2019
    Assignee: Indigo Technologies, Inc.
    Inventors: Ian W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas Moriarty, Scott T. Purchase
  • Publication number: 20070215839
    Abstract: 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: Application
    Filed: November 21, 2006
    Publication date: September 20, 2007
    Applicant: Massachusetts Institute of Technology
    Inventors: Patrick Anquetil, Ian Hunter, John Madden, Peter Madden, Anthony Pullen, Timothy Swager, Bing Xu, Hsiao-hua Yu
  • Publication number: 20030083618
    Abstract: 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: Application
    Filed: October 21, 2002
    Publication date: May 1, 2003
    Applicant: Massachusetts Institute of Technology
    Inventors: Aimee B. Angel, Ian W. Hunter, Peter Madden
  • Patent number: 6207034
    Abstract: 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: Grant
    Filed: December 3, 1998
    Date of Patent: March 27, 2001
    Assignee: Massachusetts Institute of Technology
    Inventors: Peter Madden, John Madden, Ian W. Hunter
  • Patent number: 5995936
    Abstract: 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: Grant
    Filed: February 4, 1997
    Date of Patent: November 30, 1999
    Inventors: Louis Brais, Colin Brenan, Peter Madden