Patents by Inventor Michael Duello

Michael Duello 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).

  • Systems and methods for reducing the magnitude of harmonics produced by a power inverter
    Patent number: 7688605
    Abstract: Systems and methods are provided for operating a pulse width modulation (PWM) circuit in a direct current (DC) to alternating current (AC) power inverter to reduce the magnitude of harmonics. The PWM circuit operates using a reference signal having an irregular period. In one implementation the irregular periodicity includes a sequence of periods uniformly distributed about a target period.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: March 30, 2010
    Assignee: DRS Sustainment Systems, Inc.
    Inventors: Asbrubal Garcia-Ortiz, John Wootton, Michael Duello
  • Method and apparatus for improving the energy conversion efficiency of electrical power generators
    Patent number: 7658070
    Abstract: An energy efficient electrical power generator has a primary energy conversion mechanism, such as an internal combustion engine, and a secondary energy conversion mechanism, such as a thermoelectric device. The secondary energy conversion mechanism increases the electrical power output and efficiency of the generator.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: February 9, 2010
    Assignee: DRS Sustainment Systems, Inc.
    Inventors: John Wootton, Asdrubal Garcia-Ortiz, Michael Duello
  • Systems and methods for reducing the magnitude of harmonics produced by a power inverter
    Publication number: 20070025129
    Abstract: Systems and methods for operating a pulse width modulation (PWM) circuit in a direct current (DC) to alternating current (AC) power inverter to reduce the magnitude of harmonics. The PWM circuit operates using a reference signal having an irregular period. This irregular periodicity may comprise a sequence of periods uniformly distributed about a target period.
    Type: Application
    Filed: July 27, 2005
    Publication date: February 1, 2007
    Inventors: Asbrubal Garcia-Ortiz, John Wootton, Michael Duello
  • Method and apparatus for improving the energy conversion efficiency of electrical power generators
    Publication number: 20070017223
    Abstract: An energy efficient electrical power generator has a primary energy conversion mechanism, such as an internal combustion engine, and a secondary energy conversion mechanism, such as a thermoelectric device. The secondary energy conversion mechanism increases the electrical power output and efficiency of the generator.
    Type: Application
    Filed: September 21, 2005
    Publication date: January 25, 2007
    Inventors: John Wootton, Asdrubal Garcia-Ortiz, Michael Duello