Patents by Inventor Todd D. Batzel

Todd D. Batzel 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).

  • Switched nozzle valve
    Patent number: 11306840
    Abstract: A switched nozzle valve (SNV) for gas flow regulation includes a nozzle and a valve element. The nozzle includes an orifice with a fixed cross-section and a converging section converging towards the orifice for achieving sonic velocity of the gas in the orifice. The valve element is movable between a fully closed position seated on the nozzle at a valve seat and a fully open position spaced from the valve seat. The SNV further includes a control for controlling an operator for switching the valve element between the fully open and fully closed positions at a switching frequency by using a pulse-width-modulation (PWM) signal to regulate a time-averaged flow of the gas.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: April 19, 2022
    Assignee: The Penn State Research Foundation
    Inventors: Christopher R. Martin, Todd D. Batzel
  • SWITCHED NOZZLE VALVE
    Publication number: 20210131577
    Abstract: A switched nozzle valve (SNV) for gas flow regulation includes a nozzle and a valve element. The nozzle includes an orifice with a fixed cross-section and a converging section converging towards the orifice for achieving sonic velocity of the gas in the orifice. The valve element is movable between a fully closed position seated on the nozzle at a valve seat and a fully open position spaced from the valve seat. The SNV further includes a control for controlling an operator for switching the valve element between the fully open and fully closed positions at a switching frequency by using a pulse-width-modulation (PWM) signal to regulate a time-averaged flow of the gas.
    Type: Application
    Filed: August 24, 2018
    Publication date: May 6, 2021
    Inventors: Christopher R. Martin, Todd D. Batzel
  • Detection of rotor angle in a permanent magnet synchronous motor at zero speed
    Patent number: 6441572
    Abstract: The teachings herein comprise a method and apparatus for determining the position of a rotor by applying a voltage across a pair of phases of a motor and using a voltage measurement responsive to the applied voltage and indicative of the distribution of the phase inductances within the phase pair to which a test voltage is applied to determine the rotor position.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: August 27, 2002
    Assignee: The Penn State Research Foundation
    Inventor: Todd D. Batzel
  • Detection of rotor angle in a permanent magnet synchronous motor at zero speed
    Publication number: 20010030517
    Abstract: The teachings herein comprise a method and apparatus for determining the position of a rotor by applying a voltage across a pair of phases of a motor and using a voltage measurement responsive to the applied voltage and indicative of the distribution of the phase inductances within the phase pair to which a test voltage is applied to determine the rotor position.
    Type: Application
    Filed: December 14, 2000
    Publication date: October 18, 2001
    Applicant: The Penn State Research Foundation
    Inventor: Todd D. Batzel