Patents by Inventor Richard F. Post

Richard F. Post 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: 10830278
    Abstract: Novel configurations of levitating passive magnetic bearing configurations are described. Such configurations can be used for the precise control of the magnitude and sign of the bearing stiffness, thereby facilitating the overall design of the system in ways that are not possible with conventional attractive or repelling bearing elements.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: November 10, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F. Post
  • Patent number: 10804819
    Abstract: A new rotor start-up system is provided for application to rotating systems such as stationary or vehicular electromechanical battery systems. An embodiment of the system consists of a “locator” that includes a stationary permanent-magnet pole above which is a circular ferromagnetic (e.g., iron) strip embedded in the lower, inner edge of the flywheel rotor. The lower edge of this strip is wave-like so that the magnet can pull the rotor around to a position where the position relative to the minimum capacity between the rotor and stator electrodes is such as to launch the rotor in a chosen direction, i.e., either clock-wise or counter-clockwise. Startup from rest is then accomplished by applying a short high-voltage ac or dc pulse to the EMB capacitor.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: October 13, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F. Post
  • Patent number: 10727763
    Abstract: Electrostatic generator electrodes mounted on the outer surface of a fiber-composite rotor. The conducting strips are mounted with a slight tilt in angle such that the electrodes will experience no tension or compression effects as the rotor spins up or slows down. The compression would come about from effects associated with the Poisson Ratio. This change can eliminate any metal fatigue or loss of bonding that might have arisen if the electrodes were to be aligned with the axis.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: July 28, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Richard F. Post, Lisle B. Hagler
  • Patent number: 10693343
    Abstract: A geometric design of E-S generator motor electrodes mounted on the inner surface of a fiber-composite rotor is provided. The electrode configuration is able to sustain very high g levels. The rotor may be funned of carbon-fiber wound on top of an inner E car S-glass fiber composite core. The electrode design provides the needed area to satisfy the power requirements of the storage system and utilizes a stacked wedge-like electrode array that both solves the high-g problem and results in a doubling or tripling of the electrode area, relative to that of electrodes that conform to the inner cylindrical surface of the rotor.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: June 23, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F. Post
  • Publication number: 20200136464
    Abstract: Robust electro-static (ES) device embodiments, with application to energy storage flywheels as an example, are described that provide reliable, high-efficiency operation in the presence of thermal and mechanical perturbations, as well as seismic events. Electro-static generators and motors, when augmented with magnetic bearings, passive three-dimensional stabilization techniques and dynamic touch-down bearings, enable robust performance in the face of these environmental concerns, as well as efficient operation during typical operational sequences, including spin-up and steady-state modalities.
    Type: Application
    Filed: December 28, 2019
    Publication date: April 30, 2020
    Applicant: Lawrence Livermore National Security, LLC
    Inventor: Richard F. Post
  • Patent number: 10554151
    Abstract: A novel motor drive system has been described for use in electrostatic generator/motor systems based on the time variation of capacity of a rotating condenser comprised of segmented rotor and stator elements. It takes advantage of the fact that the motor action of such a system depends only on the rms value of the drive pulses, which therefore can be formed simply by periodically interrupting a high-frequency ac wave train. This new circuitry simplifies the drive system and takes advantage of recent developments of devices used in the art of inversion of dc voltages to high-frequency (tens of kiloHz) ac.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: February 4, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Richard F. Post, Edward G. Cook
  • Publication number: 20200028451
    Abstract: Electrostatic generator electrodes mounted on the outer surface of a fiber-composite rotor. The conducting strips are mounted with a slight tilt in angle such that the electrodes will experience no tension or compression effects as the rotor spins up or slows down. The compression would come about from effects associated with the Poisson Ratio. This change can eliminate any metal fatigue or loss of bonding that might have arisen if the electrodes were to be aligned with the axis.
    Type: Application
    Filed: May 24, 2019
    Publication date: January 23, 2020
    Applicant: Lawrence Livermore National Security, LLC
    Inventors: Richard F. Post, Lisle B. Hagler
  • Patent number: 10541586
    Abstract: Robust electro-static (ES) device embodiments, with application to energy storage flywheels as an example, are described that provide reliable, high-efficiency operation in the presence of thermal and mechanical perturbations, as well as seismic events. Electro-static generators and motors, when augmented with magnetic bearings, passive three-dimensional stabilization techniques and dynamic touch-down bearings, enable robust performance in the face of these environmental concerns, as well as efficient operation during typical operational sequences, including spin-up and steady-state modalities.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: January 21, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post
  • Publication number: 20190360526
    Abstract: Novel configurations of levitating passive magnetic bearing configurations are described. Such configurations can be used for the precise control of the magnitude and sign of the bearing stiffness, thereby facilitating the overall design of the system in ways that are not possible with conventional attractive or repelling bearing elements.
    Type: Application
    Filed: August 9, 2019
    Publication date: November 28, 2019
    Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
    Inventor: Richard F. Post
  • Patent number: 10447110
    Abstract: A radial stabilizer is provided for stabilizing levitation passive bearing elements against lateral displacements. The stabilizer provides a means to introduce anisotropy in the radial stiffness of the stabilizer. The presence of anisotropic stiffness has a strongly stabilizing effect on whirl-type rotor-dynamic instabilities. The stabilizer design also provides a means for continuously monitoring the state of health of the rotor by signaling the onset of changes of balance that would be expected to precede any major failure.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: October 15, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post
  • Patent number: 10396687
    Abstract: A mechanical system is provided for maintaining a desired gap between a stator electrode array and a rotor electrode array by employing repelling magnets on the inner surface of the rotor and on movable carts that support azimuthally segmented stator arrays.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: August 27, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post
  • Patent number: 10393173
    Abstract: Novel configurations of levitating passive magnetic bearing configurations are described. Such configurations can be used for the precise control of the magnitude and sign of the bearing stiffness, thereby facilitating the overall design of the system in ways that are not possible with conventional attractive or repelling bearing elements.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: August 27, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post
  • Publication number: 20190260264
    Abstract: A geometric design of E-S generator motor electrodes mounted on the inner surface of a fiber-composite rotor is provided. The electrode configuration is able to sustain very high g levels. The rotor may be funned of carbon-fiber wound on top of an inner E car S-glass fiber composite core. The electrode design provides the needed area to satisfy the power requirements of the storage system and utilizes a stacked wedge-like electrode array that both solves the high-g problem and results in a doubling or tripling of the electrode area, relative to that of electrodes that conform to the inner cylindrical surface of the rotor.
    Type: Application
    Filed: May 2, 2019
    Publication date: August 22, 2019
    Applicant: Lawrence Livermore National Security, LLC
    Inventor: Richard F. Post
  • Publication number: 20190222144
    Abstract: A mechanical system is provided for maintaining a desired gap between a stator electrode array and a rotor electrode array by employing repelling magnets on the inner surface of the rotor and on movable carts that support azimuthally segmented stator arrays.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 18, 2019
    Applicant: Lawrence Livermore National Security, LLC.
    Inventor: Richard F. Post
  • Patent number: 10312830
    Abstract: Electrostatic generator electrodes mounted on the outer surface of a fiber-composite rotor. The conducting strips are mounted with a slight tilt in angle such that the electrodes will experience no tension or compression effects as the rotor spins up or slows down. The compression would come about from effects associated with the Poisson Ratio. This change can eliminate any metal fatigue or loss of bonding that might have arisen if the electrodes were to be aligned with the axis.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: June 4, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Richard F Post, Lisle B. Hagler
  • Patent number: 10298090
    Abstract: A geometric design of E-S generator/motor electrodes mounted on the inner surface of a fiber-composite rotor is provided. The electrode configuration is able to sustain very high g levels. The rotor may be formed of carbon-fiber wound on top of an inner E or S-glass fiber composite core. The electrode design provides the needed area to satisfy the power requirements of the storage system and utilizes a stacked wedge-like electrode array that both solves the high-g problem and results in a doubling or tripling of the electrode area, relative to that of electrodes that conform to the inner cylindrical surface of the rotor.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: May 21, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post
  • Publication number: 20190052192
    Abstract: A novel motor drive system has been described for use in electrostatic generator/motor systems based on the time variation of capacity of a rotating condenser comprised of segmented rotor and stator elements. It takes advantage of the fact that the motor action of such a system depends only on the rms value of the drive pulses, which therefore can be formed simply by periodically interrupting a high-frequency ac wave train. This new circuitry simplifies the drive system and takes advantage of recent developments of devices used in the art of inversion of dc voltages to high-frequency (tens of kiloHz) ac.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 14, 2019
    Applicant: Lawrence Livermore National Security, LLC
    Inventors: Richard F. Post, Edward G. Cook
  • Publication number: 20190052193
    Abstract: A new rotor start-up system is provided for application to rotating systems such as stationary or vehicular electromechanical battery systems. An embodiment of the system consists of a “locator” that includes a stationary permanent-magnet pole above which is a circular ferromagnetic (e.g., iron) strip embedded in the lower, inner edge of the flywheel rotor. The lower edge of this strip is wave-like so that the magnet can pull the rotor around to a position where the position relative to the minimum capacity between the rotor and stator electrodes is such as to launch the rotor in a chosen direction, i.e., either clock-wise or counter-clockwise. Startup from rest is then accomplished by applying a short high-voltage ac or dc pulse to the EMB capacitor.
    Type: Application
    Filed: October 17, 2018
    Publication date: February 14, 2019
    Applicant: Lawrence Livermore National Security, LLC
    Inventor: Richard F. Post
  • Patent number: 10180163
    Abstract: By employing a combination of magnetic forces and those from electrostatic fields, a new stabilizer is able, unlike those employing dynamic effects, to function at any speed with no need for sensors or dynamically generated electrical currents. Embodiments are provided that stabilize the radial, axial and tilt instability. In addition to its use for stabilization, the radial stabilizer described herein also functions as an eccentricity detector.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: January 15, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post
  • Patent number: 10138938
    Abstract: A ferromagnetic shield in contact with a magnet bar at the opposite end from the working surfaces of the bar eliminates the field canceling effects that arise from the Amperian currents at that end. The optimum polarization direction for such bars is one that is parallel to the azimuthal coordinate of the bar. The field at the working surface of the bar approaches that of a bar of infinite length because the shield, located on the side opposite to that of the working surface, completely eliminates, or at least substantially reduces, the field cancellation effect that normally would occur. The magnet bars with shields can be assembled on rotors and stators in flywheel storage systems and other rotating machinery.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: November 27, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post