Patents by Inventor Daniel C. Ludois

Daniel C. Ludois 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).

  • ELECTROSTATIC MACHINE SYSTEM AND METHOD OF OPERATION
    Publication number: 20230223869
    Abstract: An electrostatic machine includes a drive electrode and a stator electrode. The drive electrode and the stator electrode are separated by a gap and form a capacitor. The drive electrode is configured to move with respect to the stator electrode. The electrostatic machine further includes a housing configured to enclose the drive electrode and the stator electrode. The stator electrode is fixed to the housing. The electrostatic machine also includes a dielectric fluid that fills a void defined by the housing, the drive electrode, and the stator electrode. The dielectric fluid includes an ester.
    Type: Application
    Filed: March 3, 2023
    Publication date: July 13, 2023
    Applicant: C-Motive Technologies, Inc.
    Inventors: Graham T. Reitz, William D. Butrymowicz, Justin K. Reed, Daniel C. Ludois
  • Electrostatic machines that include a malonate in a dielectric fluid
    Patent number: 11601069
    Abstract: An electrostatic machine includes a drive electrode and a stator electrode. The drive electrode and the stator electrode are separated by a gap and form a capacitor. The drive electrode is configured to move with respect to the stator electrode. The electrostatic machine further includes a housing configured to enclose the drive electrode and the stator electrode. The stator electrode is fixed to the housing. The electrostatic machine also includes a dielectric fluid that fills a void defined by the housing, the drive electrode, and the stator electrode. The dielectric fluid includes an ester.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: March 7, 2023
    Assignee: C-Motive Technologies, Inc.
    Inventors: Graham T. Reitz, William D. Butrymowicz, Justin K Reed, Daniel C. Ludois
  • ELECTROSTATIC MACHINE SYSTEM AND METHOD OF OPERATION
    Publication number: 20210391809
    Abstract: An electrostatic machine includes a drive electrode and a stator electrode. The drive electrode and the stator electrode are separated by a gap and form a capacitor. The drive electrode is configured to move with respect to the stator electrode. The electrostatic machine further includes a housing configured to enclose the drive electrode and the stator electrode. The stator electrode is fixed to the housing. The electrostatic machine also includes a dielectric fluid that fills a void defined by the housing, the drive electrode, and the stator electrode. The dielectric fluid includes an ester.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 16, 2021
    Inventors: Graham T. Reitz, William D. Butrymowicz, Justin K. Reed, Daniel C. Ludois
  • ELECTROSTATIC MACHINE SYSTEM AND METHOD OF OPERATION
    Publication number: 20210391810
    Abstract: An electrostatic machine includes a drive electrode and a stator electrode. The drive electrode and the stator electrode are separated by a gap and form a capacitor. The drive electrode is configured to move with respect to the stator electrode. The electrostatic machine further includes a housing configured to enclose the drive electrode and the stator electrode. The stator electrode is fixed to the housing. The electrostatic machine also includes a dielectric fluid that fills a void defined by the housing, the drive electrode, and the stator electrode. The dielectric fluid includes a ketone, malonate, or an oxalate.
    Type: Application
    Filed: September 12, 2019
    Publication date: December 16, 2021
    Applicant: C-Motive Technologies, Inc.
    Inventors: Graham T. Reitz, William D. Butrymowicz, Baoyun GE, Justin K. Reed, Daniel C. Ludois
  • Electrostatic machine system and method of operation
    Patent number: 11114951
    Abstract: An electrostatic machine includes a drive electrode and a stator electrode. The drive electrode and the stator electrode are separated by a gap and form a capacitor. The drive electrode is configured to move with respect to the stator electrode. The electrostatic machine further includes a housing configured to enclose the drive electrode and the stator electrode. The stator electrode is fixed to the housing. The electrostatic machine also includes a dielectric fluid that fills a void defined by the housing, the drive electrode, and the stator electrode. The dielectric fluid includes an ester.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: September 7, 2021
    Assignee: C-Motive Technologies Inc.
    Inventors: Graham T. Reitz, William D. Butrymowicz, Justin K Reed, Daniel C. Ludois
  • ELECTROSTATIC MACHINE SYSTEM AND METHOD OF OPERATION
    Publication number: 20190296659
    Abstract: An electrostatic machine includes a drive electrode and a stator electrode. The drive electrode and the stator electrode are separated by a gap and form a capacitor. The drive electrode is configured to move with respect to the stator electrode. The electrostatic machine further includes a housing configured to enclose the drive electrode and the stator electrode. The stator electrode is fixed to the housing. The electrostatic machine also includes a dielectric fluid that fills a void defined by the housing, the drive electrode, and the stator electrode. The dielectric fluid includes an ester.
    Type: Application
    Filed: November 7, 2017
    Publication date: September 26, 2019
    Applicant: C-Motive Technologies Inc.
    Inventors: Graham T. Reitz, William D. Butrymowicz, Justin K Reed, Daniel C. Ludois
  • Varying capacitance rotating electrical machine
    Patent number: 9184676
    Abstract: A varying capacitance rotating electrical machine provides capacitor elements, such as capacitor plates, that move with respect to each other as separated by a thin film of fluid, for example air, on which one capacitor element floats. In one embodiment, multiple plates provide for three-phase operation. Narrow gaps provided by the floating capacitor elements increase the power density of rotating electrical machine.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: November 10, 2015
    Assignee: Wisconsin Alumni Research Foundation
    Inventor: Daniel C. Ludois
  • Varying Capacitance Rotating Electrical Machine
    Publication number: 20130106317
    Abstract: A varying capacitance rotating electrical machine provides capacitor elements, such as capacitor plates, that move with respect to each other as separated by a thin film of fluid, for example air, on which one capacitor element floats. In one embodiment, multiple plates provide for three-phase operation. Narrow gaps provided by the floating capacitor elements increase the power density of rotating electrical machine.
    Type: Application
    Filed: October 31, 2011
    Publication date: May 2, 2013
    Inventor: Daniel C. Ludois