Patents by Inventor Graham T. Reitz
Graham T. Reitz 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: 20240128894Abstract: An example electrostatic machine includes a number of stator plates, each having a stator electrode and rotationally fixed to a housing, a shaft at least partially defined within the housing and configured to rotate about an axis, and a number of rotor plates, each having a rotor electrode and rotational fixed to the shaft. The electrostatic machine includes a dielectric fluid disposed in the housing, and that fills a gap between the stator plates and the rotor plates. The electrostatic machine includes a seal associated with the shaft, where the seal includes a material compatible with the dielectric fluid.Type: ApplicationFiled: July 6, 2023Publication date: April 18, 2024Inventors: Justin Kyle Reed, Ryan Knippel, William D. Butrymowicz, Graham T. Reitz, Matthew Maroon, Baoyun Ge, Daniel Colin Ludois, Aditya Nandakumar Ghule, Serge Kuro, Kevin Frankforter
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Patent number: 11742779Abstract: An example electrostatic machine includes a number of stator plates, each having a stator electrode and rotationally fixed to a housing, a shaft at least partially defined within the housing and configured to rotate about an axis, and a number of rotor plates, each having a rotor electrode and rotational fixed to the shaft. The electrostatic machine includes a dielectric fluid disposed in the housing, and that fills a gap between the stator plates and the rotor plates. The electrostatic machine includes a seal associated with the shaft, where the seal includes a material compatible with the dielectric fluid.Type: GrantFiled: January 4, 2021Date of Patent: August 29, 2023Assignee: C-Motive Technologies, Inc.Inventors: Justin Kyle Reed, Ryan Knippel, William D. Butrymowicz, Graham T. Reitz, Matthew Maroon, Baoyun Ge, Daniel Colin Ludois, Aditya Nandakumar Ghule, Serge Kuro, Kevin Frankforter
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Publication number: 20230223869Abstract: 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: ApplicationFiled: March 3, 2023Publication date: July 13, 2023Applicant: C-Motive Technologies, Inc.Inventors: Graham T. Reitz, William D. Butrymowicz, Justin K. Reed, Daniel C. Ludois
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Patent number: 11601069Abstract: 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: GrantFiled: August 30, 2021Date of Patent: March 7, 2023Assignee: C-Motive Technologies, Inc.Inventors: Graham T. Reitz, William D. Butrymowicz, Justin K Reed, Daniel C. Ludois
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Publication number: 20210391809Abstract: 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: ApplicationFiled: August 30, 2021Publication date: December 16, 2021Inventors: Graham T. Reitz, William D. Butrymowicz, Justin K. Reed, Daniel C. Ludois
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Publication number: 20210391810Abstract: 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: ApplicationFiled: September 12, 2019Publication date: December 16, 2021Applicant: C-Motive Technologies, Inc.Inventors: Graham T. Reitz, William D. Butrymowicz, Baoyun GE, Justin K. Reed, Daniel C. Ludois
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Publication number: 20210281193Abstract: An example system including an electrostatic machine including a rotor plate comprising a plurality of rotor electrodes, and rotatably fixed to a shaft configured to rotate about an axis; a stator plate comprising a plurality of stator electrodes, and rotatably fixed to a housing defining the rotor plate, the stator plate, and at least a portion of the shaft; an excitation circuit electrically; a controller, comprising: a rotor feedback circuit structured to interpret a voltage response value; a rotor position characterizing circuit structured to determine a voltage injection value; and a rotor position circuit structured to determine a calibrated rotor position value in response to the rotor position value; and wherein the excitation circuit is responsive to the voltage injection value to inject a voltage on at least one of the plurality of rotor electrodes or stator electrodes.Type: ApplicationFiled: April 19, 2021Publication date: September 9, 2021Inventors: Justin Kyle Reed, Graham T. Reitz, Baoyun Ge, Daniel Colin Ludois, Aditya Nandakumar Ghule, Serge Kuro
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Patent number: 11114951Abstract: 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: GrantFiled: November 7, 2017Date of Patent: September 7, 2021Assignee: C-Motive Technologies Inc.Inventors: Graham T. Reitz, William D. Butrymowicz, Justin K Reed, Daniel C. Ludois
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Publication number: 20210257930Abstract: An example electrostatic machine including a rotor stack comprising a plurality of a rotor plates each including a plurality of rotor electrodes positioned on each side of the rotor plate; and at least one rotor via comprising an electrical connection between the plurality of rotor electrodes on a first side of the rotor plate and the plurality of rotor electrodes on a second side of the rotor plate; and a stator stack comprising a plurality of stator plates, each including a plurality of stator electrodes positioned on each side of the stator plate; and at least one stator via comprising an electrical connection between the plurality of stator electrodes on a first side of the stator plate and the plurality of stator electrodes on a second side of the stator plate.Type: ApplicationFiled: April 19, 2021Publication date: August 19, 2021Inventors: Justin Kyle Reed, Ryan Knippel, William D. Butrymowicz, Graham T. Reitz, Baoyun Ge, Daniel Colin Ludois, Aditya Nandakumar Ghule, Serge Kuro
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Publication number: 20210242804Abstract: An example electrostatic machine includes a rotor plate and an adjacent stator plate; wherein a first one of the rotor plate or stator plate comprises a coupled bearing; and wherein the other one of the rotor plate or stator plate comprises a race radially aligned with the coupled bearing.Type: ApplicationFiled: April 19, 2021Publication date: August 5, 2021Inventors: Justin Kyle Reed, Ryan Knippel, William D. Butrymowicz, Graham T. Reitz
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Publication number: 20210242803Abstract: An example electrostatic machine including a shaft configured to rotate about an axis; a rotor electrode and a stator electrode separated by a gap and forming a capacitor, wherein the rotor electrode is rotationally coupled to the shaft; a housing configured to enclose the rotor electrode, the stator electrode, and at least a portion of the shaft, wherein the stator electrode is rotationally coupled to the housing; a dielectric fluid disposed between the rotor electrode and the stator electrode; and an accumulator fluidly coupled to the dielectric fluid.Type: ApplicationFiled: April 19, 2021Publication date: August 5, 2021Inventors: William D. Butrymowicz, Graham T. Reitz
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Publication number: 20210242802Abstract: An example electrostatic machine includes a shaft configured to rotate about an axis; a rotor electrode and a stator electrode separated by a gap and forming a capacitor, wherein the rotor electrode is rotationally coupled to the shaft; wherein at least a portion of an exposed surface of the rotor electrode comprises a polished surface, and wherein at least a portion of an exposed surface of the stator electrode comprises a polished surface; a housing configured to enclose the rotor electrode, the stator electrode, and at least a portion of the shaft, wherein the stator electrode is rotationally coupled to the housing; and a dielectric fluid disposed between the rotor electrode and the stator electrode.Type: ApplicationFiled: April 19, 2021Publication date: August 5, 2021Inventors: Justin Kyle Reed, Ryan Knippel, William D. Butrymowicz, Graham T. Reitz, Baoyun Ge, Daniel Colin Ludois, Kevin Frankforter
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Publication number: 20210234476Abstract: An example electrostatic machine includes a rotor plate and an adjacent stator plate, where the rotor plate or the stator plate includes a coupled bearing. The other one of the rotor plate or the adjacent stator plate includes a race radially aligned with the coupled bearing. The coupled bearing has a width with a first contact point on the first one of the rotor plate or stator plate and a second contact point on the race on the other one of the rotor plate or stator plate, where the coupled bearing is sized to maintain a minimum separation distance between the rotor plate and the stator plate.Type: ApplicationFiled: January 4, 2021Publication date: July 29, 2021Inventors: Justin Kyle Reed, Ryan Knippel, William D. Butrymowicz, Graham T. Reitz, Matthew Maroon, Baoyun Ge, Daniel Colin Ludois, Aditya Nandakumar Ghule, Serge Kuro, Paul J. Reckwerdt, Kevin Frankforter
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Publication number: 20210211069Abstract: An example electrostatic machine includes a number of stator plates, each having a stator electrode and rotationally fixed to a housing, a shaft at least partially defined within the housing and configured to rotate about an axis, and a number of rotor plates, each having a rotor electrode and rotational fixed to the shaft. The electrostatic machine includes a dielectric fluid disposed in the housing, and that fills a gap between the stator plates and the rotor plates. The electrostatic machine includes a seal associated with the shaft, where the seal includes a material compatible with the dielectric fluid.Type: ApplicationFiled: January 4, 2021Publication date: July 8, 2021Inventors: Justin Kyle Reed, Ryan Knippel, William D. Butrymowicz, Graham T. Reitz, Matthew Maroon, Baoyun Ge, Daniel Colin Ludois, Aditya Nandakumar Ghule, Serge Kuro, Kevin Frankforter
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Publication number: 20190296659Abstract: 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: ApplicationFiled: November 7, 2017Publication date: September 26, 2019Applicant: C-Motive Technologies Inc.Inventors: Graham T. Reitz, William D. Butrymowicz, Justin K Reed, Daniel C. Ludois
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Patent number: 8442287Abstract: System and method of determining whether a component of a radiation therapy system is operating within a dosimetric tolerance.Type: GrantFiled: August 10, 2010Date of Patent: May 14, 2013Assignee: Tomotherapy IncorporatedInventors: Gerald D. Fordyce, II, Kenneth J. Ruchala, Eric Schnarr, Yu Chen, Graham T. Reitz, Scott Finley, Rob O'Connell, Matthew Orton
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Patent number: 8161585Abstract: A patient support device of a radiation therapy treatment system includes an electromechanical motor and control system for moving the support device. The control system utilizes regenerative braking concepts, converting the motor into a generator as the support device is moved such that no matter the load, the support device will be moved at a constant speed. The control system also allows for moving of the support device in the powered off situation (i.e., when there is no power to the support device).Type: GrantFiled: August 31, 2010Date of Patent: April 24, 2012Assignee: Tomotherapy IncorporatedInventors: Serge Nukhim Kuro, Graham T. Reitz, Bradley J. Brunker, Brent Harper
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Patent number: 8122542Abstract: A method and system configured to substantially synchronize two opposite ends of a table assembly of a radiation therapy treatment system. The system includes a lateral motion control system coupled to the table assembly and configured to detect positions of the two opposite ends of the table assembly and to substantially synchronize the positions as the table assembly is laterally moved with respect to a gantry of the radiation therapy treatment system.Type: GrantFiled: September 4, 2008Date of Patent: February 28, 2012Assignee: Tomotherapy IncorporatedInventors: Graham T. Reitz, Bradley J. Brunker, Ralph J. Gable, Wayne L. Staats, Jr., Brent Harper
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Publication number: 20110112351Abstract: System and method of determining whether a component of a radiation therapy system is operating within a dosimetric tolerance.Type: ApplicationFiled: August 10, 2010Publication date: May 12, 2011Inventors: Gerald D. Fordyce, II, Kenneth J. Ruchala, Eric Schnarr, Yu Chen, Graham T. Reitz, Scott Finley, Rob O'Connell, Matthew Orton
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Publication number: 20100319128Abstract: A patient support device of a radiation therapy treatment system includes an electromechanical motor and control system for moving the support device. The control system utilizes regenerative braking concepts, converting the motor into a generator as the support device is moved such that no matter the load, the support device will be moved at a constant speed. The control system also allows for moving of the support device in the powered off situation (i.e., when there is no power to the support device).Type: ApplicationFiled: August 31, 2010Publication date: December 23, 2010Applicant: TOMOTHERAPY INCORPORATEDInventors: Serge Nukhim Kuro, Graham T. Reitz, Bradley J. Brunker, Brent Harper