Patents by Inventor Neal George Stewart

Neal George Stewart 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: 20230077113
    Abstract: The present invention relates to a composition, textile, and mask for reducing the inhalation of pollutants. The composition includes an aqueous solution of an inorganic iodide compound, a metal phthalocyanine, and a polymeric binder. The inorganic iodide can be cuprous iodide, the metal phthalocyanine can be iron phthalocyanine, and the polymeric binder can be polyvinylpyrrolidone or polyvinyl alcohol. This pollutant-inactivating composition neutralizes pollutants such as nitrogen dioxide, sulfur dioxide, ozone, volatile organic compounds and other unpleasant airborne agents, without requiring elevated temperatures or bulky canisters containing adsorbents. Optionally, a humectant can also be incorporated into the coating solution to retain moisture in the active filter matrix, which enhances the activity of the composition to inactivate oxidizing gases and other toxic constituents of air pollution.
    Type: Application
    Filed: November 7, 2022
    Publication date: March 9, 2023
    Applicant: Innonix Technologies, Inc.
    Inventors: Wylie Wing Nien O, Neal George Stewart, Reid Warren von Borstel
  • Patent number: 11283362
    Abstract: A system for controlling and regulating the AC voltage level delivered to a load regardless of the varying input AC voltage comprises a high frequency AC series voltage regulator coupled with a low frequency operating mains transformer. In one embodiment, the LF operating mains transformer operates at electrical mains frequency, which is typically 50 Hz or 60 Hz. The magnetic core of the LF operating mains transformer may be made of industry standard low frequency core material selected from a material group including silicon steel and amorphous core such as ‘Metglass’. The AC series voltage regulator is connected to the primary of the LF operating mains transformer, and the secondary of the LF operating mains transformer is connected in series between the mains input (which receives the unregulated input AC voltage to be regulated) and its output (which outputs the regulated AC voltage to the loads).
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: March 22, 2022
    Assignee: Edge Electrons Limited
    Inventor: Neal George Stewart
  • Patent number: 11243236
    Abstract: A device and method are provided for monitoring quality and performance parameters of an electricity distribution component in an electricity distribution network and detecting any deviation of operating parameters from the specified regulatory set and enforced limits. The critical and increasing problem is mitigated for the myriad of private domestic and commercial DEG devices being installed and connected to the distribution networks which were not initially designed for, or even not anticipated with, the recent DEG evolution, and the increasing complex electrical components with changing loads and power factors across the distribution network.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: February 8, 2022
    Assignee: Edge Electrons Limited
    Inventors: Jian Carlo Decena Zapata, Efren Santos Cruzat, II, Leonard Ostil Torio, Gordon Currie, Neal George Stewart
  • Publication number: 20210318363
    Abstract: A device and method are provided for monitoring quality and performance parameters of an electricity distribution component in an electricity distribution network and detecting any deviation of operating parameters from the specified regulatory set and enforced limits. The critical and increasing problem is mitigated for the myriad of private domestic and commercial DEG devices being installed and connected to the distribution networks which were not initially designed for, or even not anticipated with, the recent DEG evolution, and the increasing complex electrical components with changing loads and power factors across the distribution network.
    Type: Application
    Filed: August 1, 2018
    Publication date: October 14, 2021
    Inventors: Jian Carlo Decena ZAPATA, Efren Santos CRUZAT, II, Leonard Ostil TORIO, Gordon CURRIE, Neal George STEWART
  • Publication number: 20210313898
    Abstract: A system for controlling and regulating the AC voltage level delivered to a load regardless of the varying input AC voltage comprises a high frequency AC series voltage regulator coupled with a low frequency operating mains transformer. In one embodiment, the LF operating mains transformer operates at electrical mains frequency, which is typically 50 Hz or 60 Hz. The magnetic core of the LF operating mains transformer may be made of industry standard low frequency core material selected from a material group including silicon steel and amorphous core such as ‘Metglass’. The AC series voltage regulator is connected to the primary of the LF operating mains transformer, and the secondary of the LF operating mains transformer is connected in series between the mains input (which receives the unregulated input AC voltage to be regulated) and its output (which outputs the regulated AC voltage to the loads).
    Type: Application
    Filed: September 1, 2017
    Publication date: October 7, 2021
    Inventor: Neal George STEWART
  • Patent number: 11139685
    Abstract: A method of determining one or more direct voltage reduction (DVR) factors at a point of load (POL) in a power grid voltage environment. An energy processing unit (EPU) is installed at each individual POL; each EPU includes at least one AC-AC series voltage regulator. An EPU-regulated output voltage is increased under specific controlled conditions. One or more independent DVR factors for each individual POL are determined during the increased and decreased EPU-regulated output voltage.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: October 5, 2021
    Assignee: Edge Electrons Limited
    Inventors: Ben Frickel, Julie Ann Estolonio, Shaira Joyce Prado, Gaia Maria Javier, Jian Carlo Decena Zapata, Gordon Currie, Neal George Stewart
  • Patent number: 11063432
    Abstract: In the present legacy electrical power generation and distribution system, the power quality delivered to end consumers is being degraded by a number of disruptive technologies and legislative impacts; especially with the rapidly increasing myriad of privately owned and operated domestic and commercial distributed energy generation (DEG) devices connected at any point across a low voltage (LV) distribution network. The present invention bypasses this increasing critical DEG problem by offering a solution comprising an energy processing unit (EPU) that is installed at the edge of the high voltage (HV) transmission grid.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: July 13, 2021
    Assignee: Edge Electrons Limited
    Inventors: Neal George Stewart, Jian Carlo Decena Zapata
  • Publication number: 20210119480
    Abstract: A method of determining one or more direct voltage reduction (DVR) factors at a point of load (POL) in a power grid voltage environment. An energy processing unit (EPU) is installed at each individual POL; each EPU includes at least one AC-AC series voltage regulator. An EPU-regulated output voltage is increased under specific controlled conditions. One or more independent DVR factors for each individual POL are determined during the increased and decreased EPU-regulated output voltage.
    Type: Application
    Filed: July 12, 2018
    Publication date: April 22, 2021
    Inventors: Ben FRICKEL, Julie Ann ESTOLONIO, Shaira Joyce PRADO, Gaia Maria JAVIER, Jian Carlo Decena ZAPATA, Gordon CURRIE, Neal George STEWART
  • Patent number: 10951112
    Abstract: An apparatus is provided for minimizing the peak power demand on an inverter in a power supply with one or more switched reactive loads comprising an AC semiconductor bypass switch connected in parallel with the inverter and a bypass control device. The bypass control device includes filters for selecting load current signals with specific frequencies of interest from the switched reactive loads; a signal processor for sampling and transforming the selected load current signals into frequency domain to identify frequency components of the selected load current signal; an amplitude detector for detecting peak current amplitudes of the identified frequency components of the selected load current signal; and a bypass driver.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: March 16, 2021
    Assignee: Edge Electrons Limited
    Inventors: Jian Carlo Decena Zapata, Neal George Stewart
  • Publication number: 20200238111
    Abstract: The present invention relates to a composition, textile, and mask for reducing the inhalation of pollutants. The composition includes an aqueous solution of an inorganic iodide compound, a metal phthalocyanine, and a polymeric binder. The inorganic iodide can be cuprous iodide, the metal phthalocyanine can be iron phthalocyanine, and the polymeric binder can be polyvinylpyrrolidone or polyvinyl alcohol. This pollutant-inactivating composition neutralizes pollutants such as nitrogen dioxide, sulfur dioxide, ozone, volatile organic compounds and other unpleasant airborne agents, without requiring elevated temperatures or bulky canisters containing adsorbents. Optionally, a humectant can also be incorporated into the coating solution to retain moisture in the active filter matrix, which enhances the activity of the composition to inactivate oxidizing gases and other toxic constituents of air pollution.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 30, 2020
    Applicant: Innonix Technologies, Inc.
    Inventors: Wylie Wing Nien O, Neal George Stewart, Reid Warren von Borstel
  • Publication number: 20200125127
    Abstract: An apparatus is provided for bypassing a load current going through an AC-AC series voltage regulator under over-current condition, comprising: an AC-AC invertor; an AC semiconductor bypass switch; and a bypass control. The AC-AC invertor and the AC semiconductor bypass switch are connected in parallel. The bypass control is configured to detect a load current signal, an input voltage of the AC-AC series voltage regulator and an output voltage of the AC-AC series voltage regulator and to control the AC semiconductor bypass switch's switching such that the load current under overcurrent condition is shared between the AC-AC invertor and the AC semiconductor bypass switch.
    Type: Application
    Filed: June 1, 2018
    Publication date: April 23, 2020
    Inventors: Jian Carlo Decena ZAPATA, Gordon CURRIE, Neal George STEWART
  • Patent number: 10617894
    Abstract: The present invention relates to a composition, textile, and mask for reducing the inhalation of pollutants. The composition includes an aqueous solution of an inorganic iodide compound, a metal phthalocyanine, and a polymeric binder. The inorganic iodide can be cuprous iodide, the metal phthalocyanine can be iron phthalocyanine, and the polymeric binder can be polyvinylpyrrolidone or polyvinyl alcohol. This pollutant-inactivating composition neutralizes pollutants such as nitrogen dioxide, sulfur dioxide, ozone, volatile organic compounds and other unpleasant airborne agents, without requiring elevated temperatures or bulky canisters containing adsorbents. Optionally, a humectant can also be incorporated into the coating solution to retain moisture in the active filter matrix, which enhances the activity of the composition to inactivate oxidizing gases and other toxic constituents of air pollution.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 14, 2020
    Assignee: Innonix Technologies, Incorporated
    Inventors: Wylie Wing Nien O, Neal George Stewart, Reid Warren von Borstel
  • Publication number: 20200059154
    Abstract: An apparatus is provided for minimizing the peak power demand on an inverter in a power supply with one or more switched reactive loads comprising an AC semiconductor bypass switch connected in parallel with the inverter and a bypass control device. The bypass control device includes filters for selecting load current signals with specific frequencies of interest from the switched reactive loads; a signal processor for sampling and transforming the selected load current signals into frequency domain to identify frequency components of the selected load current signal; an amplitude detector for detecting peak current amplitudes of the identified frequency components of the selected load current signal; and a bypass driver.
    Type: Application
    Filed: April 26, 2018
    Publication date: February 20, 2020
    Inventors: Jian Carlo Decena ZAPATA, Neal George STEWART
  • Publication number: 20190363536
    Abstract: In the present legacy electrical power generation and distribution system, the power quality delivered to end consumers is being degraded by a number of disruptive technologies and legislative impacts; especially with the rapidly increasing myriad of privately owned and operated domestic and commercial distributed energy generation (DEG) devices connected at any point across a low voltage (LV) distribution network. The present invention bypasses this increasing critical DEG problem by offering a solution comprising an energy processing unit (EPU) that is installed at the edge of the high voltage (HV) transmission grid.
    Type: Application
    Filed: August 7, 2019
    Publication date: November 28, 2019
    Inventors: Neal George Stewart, Jian Carlo Decena Zapata
  • Patent number: 10230242
    Abstract: In the present legacy electrical power generation and distribution system, the power quality delivered to end consumers is being degraded by a number of disruptive technologies and legislative impacts; especially with the rapidly increasing myriad of privately owned and operated domestic and commercial distributed energy generation (DEG) devices connected at any point across a low voltage (LV) distribution network. The present invention bypasses this increasing critical DEG problem by offering a solution comprising an energy processing unit (EPU) that is installed at the customer's electrical power point of use (POU). And because of the controlled tightly voltage regulated output of the EPU, significant energy savings can be achieved through dynamic voltage control, utilizing the CVR effect, reduced reactive power demand, and reduced or eliminated peak demand billings.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: March 12, 2019
    Assignee: Edge Electrons Limited
    Inventors: Neal George Stewart, Gordon Currie, Jian Zapata, Richard McIndoe
  • Patent number: 10056756
    Abstract: Audio Frequency Load Control (AFLC) signal processing electronics added to a power factor correction (PFC) unit allowing the AFLC system to operate without the need of large and heavy passive bypass or blocking filters at the PFC installations. The AFLC signal processing electronics a first group of additional electronics tuned to the AFLC frequency for detecting the AFLC carrier signal; and a second group of additional electronics for driving an AFLC impedance switch that is connected in parallel with an AFLC impedance. The AFLC impedance is connected in series with the PFC capacitors, and is sufficiently large to offer significant impedance in series with the PFC capacitors that allows the AFLC signal to bypass the PFC unit.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: August 21, 2018
    Assignee: EDGE ELECTRONS LIMITED
    Inventors: Neal George Stewart, Wing Ling Cheng
  • Patent number: 10027120
    Abstract: A high-efficiency system for conducting power factor (PF) and harmonics correction in an electrical network, comprising a controller; a digital PFC capacitor array comprising two or more passive PFC capacitors, providing fine steps increments in the PF correction; and linear PFC capacitor arrays, providing coarse steps increments in the PF correction. The PF correction in coarse steps increments and fine steps increments allow a total or near total PF correction without overcompensation. Optionally, the system further comprises a lower power active power filter (APF) configured to only target and eliminate or minimize harmonics in the electrical network.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: July 17, 2018
    Assignee: EDGE ELECTRONS LIMITED
    Inventors: Jian Carlo Decena Zapata, Efren II Santos Cruzat, Neal George Stewart, Gordon Currie, Wing Ling Cheng
  • Patent number: 9979312
    Abstract: An energy saving alternate current (AC) series voltage regulator comprises an AC high frequency (HF) series voltage buck power regulator, a bypass contactor (K1), a bidirectional AC semiconductor device (S1) connected in parallel with the bypass contactor and a control circuitry. Under the condition of an input AC mains voltage (Vin) drops below a specified and set optimum energy savings voltage or a lower selected voltage point, the control circuitry transitions both the slow bypass contactor and the fast bidirectional AC semiconductor device, then the AC high frequency (HF) series voltage buck power regulator are switched out to save the AC high frequency (HF) series voltage buck power regulator internal power electronics usage. Under this condition, the lower input AC mains voltage is directly delivered to an electrical load by the contactor bypass system, hence achieving more energy savings.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: May 22, 2018
    Assignee: Edge Electrons Limited
    Inventors: Neal George Stewart, Wing Ling Cheng
  • Patent number: 9941698
    Abstract: Legacy automatic variable capacitor KVAR compensation systems typically use either electromechanical devices such as relays or contactors of various forms and types to switch the selected capacitors in and out of the electrical system under some form of electronic control. These systems are slow and discontinuous in their ability to closely regulate the exact value of compensatory capacitance needed to compensate the variable and rapidly changing reactive power KVAR in the electrical power transmission and distribution networks. The present invention provides a fast response active KVAR compensator based on a variable transimpedance topology.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: April 10, 2018
    Assignee: Edge Electronics Limited
    Inventors: Neal George Stewart, Wing Ling Cheng
  • Publication number: 20180041034
    Abstract: Audio Frequency Load Control (AFLC) signal processing electronics added to a power factor correction (PFC) unit allowing the AFLC system to operate without the need of large and heavy passive bypass or blocking filters at the PFC installations. The AFLC signal processing electronics a first group of additional electronics tuned to the AFLC frequency for detecting the AFLC carrier signal; and a second group of additional electronics for driving an AFLC impedance switch that is connected in parallel with an AFLC impedance. The AFLC impedance is connected in series with the PFC capacitors, and is sufficiently large to offer significant impedance in series with the PFC capacitors that allows the AFLC signal to bypass the PFC unit.
    Type: Application
    Filed: March 1, 2016
    Publication date: February 8, 2018
    Inventors: Neal George Stewart, Wing Ling CHENG