Patents by Inventor Brian Elfman

Brian Elfman 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).

  • Patent number: 11631988
    Abstract: A system comprising a high voltage (HV) bank section using energy storage devices arranged into one or more banks, an inductive device coupling the HV bank to a service voltage (SV) bank section and load through a charging circuit charging the SV bank from a more fully charged bank until the charging bank is depleted, and a switch switching, from the depleted bank to the other bank to charge the SV bank. The charging circuit then charging the depleted bank by a power supply as the other HV bank charges the SV bank. A supervisory controller controls the switch to repeat discharging and charging between the two banks for a defined period. The energy storage devices may be supercapacitors capable of storing energy on the order of 1 to 10 MegaJoules, and the inductive device may be a high-inductance, toroidal multifilar inductor.
    Type: Grant
    Filed: December 18, 2021
    Date of Patent: April 18, 2023
    Assignee: Richard H. Sherratt and Susan B. Sherratt Revocable Trust Fund
    Inventor: Brian Elfman
  • Publication number: 20230088782
    Abstract: Embodiments of a multifilar inductor with at least three windings that are switchable, having a power assigned winding denoted as P1, a suppression assigned winding denoted as B, a containment assigned winding denoted as T, a switching apparatus to switch assignments between the P1, B and T windings; and a capacitor bank, wherein B suppresses the back EMF generated by a pulse power, T contains field emitted EMF generated by the pulse power. The input pulse power input is converted to a constant current output into the capacitor bank such that its time duration is extended by the combination of the inductor windings plus the capacitor bank to thereby minimize the peak inductance below the inductor's saturation point.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 23, 2023
    Inventor: Brian Elfman
  • Patent number: 11538626
    Abstract: Embodiments for a multifilar inductor with at least three windings that are switchable, having a power assigned winding denoted as P1, a suppression assigned winding denoted as B, a containment assigned winding denoted as T, a switching apparatus to switch assignments between the P1, B and T windings; and a capacitor bank, wherein B suppresses the back EMF generated by a pulse power, T contains field emitted EMF generated by the pulse power, and wherein the input pulse power input is converted to a constant current output into the capacitor bank such that its time duration is extended by the combination of the inductor windings plus the capacitor bank to thereby minimize the peak inductance below the inductor's saturation point.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: December 27, 2022
    Assignee: Richard H. Sherratt and Susan B. Sherratt Revocable Trust Fund
    Inventor: Brian Elfman
  • Publication number: 20220115898
    Abstract: A system comprising a high voltage (HV) bank section using energy storage devices arranged into one or more banks, an inductive device coupling the HV bank to a service voltage (SV) bank section and load through a charging circuit charging the SV bank from a more fully charged bank until the charging bank is depleted, and a switch switching, from the depleted bank to the other bank to charge the SV bank. The charging circuit then charging the depleted bank by a power supply as the other HV bank charges the SV bank. A supervisory controller controls the switch to repeat discharging and charging between the two banks for a defined period. The energy storage devices may be supercapacitors having a capacitance on the order of 1 to 10 MegaJoules, and the inductive device may be a high-inductance, toroidal multifilar inductor.
    Type: Application
    Filed: December 18, 2021
    Publication date: April 14, 2022
    Inventor: Brian Elfman
  • Publication number: 20220044866
    Abstract: Embodiments for a multifilar inductor with at least three windings that are switchable, having a power assigned winding denoted as P1, a suppression assigned winding denoted as B, a containment assigned winding denoted as T, a switching apparatus to switch assignments between the P1, B and T windings; and a capacitor bank, wherein B suppresses the back EMF generated by a pulse power, T contains field emitted EMF generated by the pulse power, and wherein the input pulse power input is converted to a constant current output into the capacitor bank such that its time duration is extended by the combination of the inductor windings plus the capacitor bank to thereby minimize the peak inductance below the inductor's saturation point.
    Type: Application
    Filed: January 21, 2021
    Publication date: February 10, 2022
    Inventor: Brian Elfman
  • Patent number: 11205916
    Abstract: A system comprising a high voltage (HV) bank section using capacitors arranged into two banks, a multifilar inductor coupling the HV bank to a service voltage (SV) bank section and load through a charging circuit charging the SV bank from a more fully charged bank until the charging bank is depleted, and a switch switching, from the depleted bank to the other bank of bank to charge the SV bank. The charging circuit then charging the depleted bank by a power supply as the other HV bank charges the SV bank. A supervisory controller controls the switch to repeat switching and charging between the two banks for a defined period. The capacitors may be supercapacitors having a capacitance on the order of 1 to 10 MegaJoules.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: December 21, 2021
    Assignee: Richard H. Sherratt and Susan B. Sherratt Revocable Trust Fund
    Inventor: Brian Elfman
  • Publication number: 20210313826
    Abstract: A system comprising a high voltage (HV) bank section using capacitors arranged into two banks, a multifilar inductor coupling the HV bank to a service voltage (SV) bank section and load through a charging circuit charging the SV bank from a more fully charged bank until the charging bank is depleted, and a switch switching, from the depleted bank to the other bank of bank to charge the SV bank. The charging circuit then charging the depleted bank by a power supply as the other HV bank charges the SV bank. A supervisory controller controls the switch to repeat switching and charging between the two banks for a defined period. The capacitors may be supercapacitors having a capacitance on the order of 1 to 10 MegaJoules.
    Type: Application
    Filed: March 20, 2020
    Publication date: October 7, 2021
    Inventor: Brian Elfman
  • Patent number: 10967816
    Abstract: An apparatus having an electrical generator and an energy transfer device coupled to the generator. The energy transfer device has a first capacitor having a capacitance of at least 1 Farad and storing at least 1 MegaJoule of energy, a high-energy inductor coupled to the first capacitor, a second capacitor having capacitance of at least 100 Farads, a switch coupling the second capacitor to the first capacitor and configured to store energy from the first capacitor in the second capacitor through the inductor when in a closed state. The apparatus further has an energy transfer controller controlling an open or closed state of the switch, and an electrical motor coupled to the energy transfer device and a mechanical drive system.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 6, 2021
    Assignee: Richard H. Sherratt and Susan B. Sherratt Revocable Trust Fund
    Inventor: Brian Elfman
  • Patent number: 10814806
    Abstract: This discloses apparatus including, but not limited to, an all Direct Current (DC) energy transfer circuit, a energy transfer controller, an all-DC energy transfer network, components of use in such circuits, and application apparatus that benefits from including and/or using the all-DC energy transfer device and methods of operating the above in accord with this invention. The application apparatus may include, but are not limited to, a hybrid electric vehicle, an electric vehicle, and/or a solar power device, in particular, a hybrid electric/internal combustion engine automobile.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: October 27, 2020
    Assignee: Richard H. Sherratt and Susan B. Sherratt Revocable Trust Fund
    Inventor: Brian Elfman
  • Publication number: 20200114841
    Abstract: An apparatus having an electrical generator and an energy transfer device coupled to the generator. The energy transfer device has a first capacitor having a capacitance of at least 1 Farad and storing at least 1 MegaJoule of energy, a high-energy inductor coupled to the first capacitor, a second capacitor having capacitance of at least 100 Farads, a switch coupling the second capacitor to the first capacitor and configured to store energy from the first capacitor in the second capacitor through the inductor when in a closed state. The apparatus further has an energy transfer controller controlling an open or closed state of the switch, and an electrical motor coupled to the energy transfer device and a mechanical drive system.
    Type: Application
    Filed: December 13, 2019
    Publication date: April 16, 2020
    Inventor: Brian Elfman
  • Patent number: 9713993
    Abstract: This discloses apparatus including, but not limited to, an all Direct Current (DC) energy transfer circuit, a energy transfer controller, an all-DC energy transfer network, components of use in such circuits, and application apparatus that benefits from including and/or using the all-DC energy transfer device and methods of operating the above in accord with this invention. The application apparatus may include, but are not limited to, a hybrid electric vehicle, an electric vehicle, and/or a solar power device, in particular, a hybrid electric/internal combustion engine automobile.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 25, 2017
    Assignee: RICHARD H. SHERRAT AND SUSAN B. SHERRATT TRUST FUND
    Inventor: Brian Elfman
  • Publication number: 20160152198
    Abstract: This discloses apparatus including, but not limited to, an all Direct Current (DC) energy transfer circuit, a energy transfer controller, an all-DC energy transfer network, components of use in such circuits, and application apparatus that benefits from including and/or using the all-DC energy transfer device and methods of operating the above in accord with this invention. The application apparatus may include, but are not limited to, a hybrid electric vehicle, an electric vehicle, and/or a solar power device, in particular, a hybrid electric/internal combustion engine automobile.
    Type: Application
    Filed: January 21, 2016
    Publication date: June 2, 2016
    Inventor: Brian Elfman
  • Patent number: 9287701
    Abstract: This discloses apparatus including, but not limited to, an all Direct Current (DC) energy transfer circuit, a energy transfer controller, an all-DC energy transfer network, components of use in such circuits, and application apparatus that benefits from including and/or using the all-DC energy transfer device and methods of operating the above in accord with this invention. The application apparatus may include, but are not limited to, a hybrid electric vehicle, an electric vehicle, and/or a solar power device, in particular, a hybrid electric/internal combustion engine automobile.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: March 15, 2016
    Assignee: Richard H. Sherratt and Susan B. Sherratt Revocable Trust Fund
    Inventor: Brian Elfman
  • Publication number: 20160028230
    Abstract: This discloses apparatus including, but not limited to, an all Direct Current (DC) energy transfer circuit, a energy transfer controller, an all-DC energy transfer network, components of use in such circuits, and application apparatus that benefits from including and/or using the all-DC energy transfer device and methods of operating the above in accord with this invention. The application apparatus may include, but are not limited to, a hybrid electric vehicle, an electric vehicle, and/or a solar power device, in particular, a hybrid electric/internal combustion engine automobile.
    Type: Application
    Filed: July 21, 2015
    Publication date: January 28, 2016
    Inventor: Brian Elfman
  • Publication number: 20050218971
    Abstract: A self-calibrating an auto-tracking voltage regulation method and system is provided that includes a superior voltage reference and a less stable operating voltage reference. The superior voltage reference may be a thermal resistor heated zener (TRZ) that is turned on only during a relatively low duty cycle sampling period. An error signal generator compares the superior voltage reference and a feedback voltage to generate an error signal based thereon. An error correction unit combines the error correction signal and the operating voltage reference to produce a calibrated output voltage that has a greater voltage stability than the operating voltage reference.
    Type: Application
    Filed: March 30, 2004
    Publication date: October 6, 2005
    Applicant: B.P. ELFMAN & A.B. POLLARD PROPERTIES LLC
    Inventor: Brian Elfman