Patents by Inventor Derek L. Lisoski

Derek L. Lisoski 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: 20180155005
    Abstract: A span-loaded, highly flexible flying wing, having horizontal control surfaces mounted aft of the wing on extended beams to form local pitch-control devices. Each of five spanwise wing segments of the wing has one or more motors and photovoltaic arrays, and produces its own lift independent of the other wing segments, to minimize inter-segment loads. Wing dihedral is controlled by separately controlling the local pitch-control devices consisting of a control surface on a boom, such that inboard and outboard wing segment pitch changes relative to each other, and thus relative inboard and outboard lift is varied.
    Type: Application
    Filed: September 18, 2017
    Publication date: June 7, 2018
    Applicant: AeroVironment, Inc.
    Inventors: Greg T. Kendall, Derek L. Lisoski, Walter R. Morgan, John A. Griecci
  • Patent number: 9764819
    Abstract: A span-loaded, highly flexible flying wing, having horizontal control surfaces mounted aft of the wing on extended beams to form local pitch-control devices. Each of five spanwise wing segments of the wing has one or more motors and photovoltaic arrays, and produces its own lift independent of the other wing segments, to minimize inter-segment loads. Wing dihedral is controlled by separately controlling the local pitch-control devices consisting of a control surface on a boom, such that inboard and outboard wing segment pitch changes relative to each other, and thus relative inboard and outboard lift is varied.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: September 19, 2017
    Assignee: AeroVironment, Inc.
    Inventors: Greg T. Kendall, Derek L. Lisoski, Walter R. Morgan, John A. Griecci
  • Publication number: 20160068252
    Abstract: A span-loaded, highly flexible flying wing, having horizontal control surfaces mounted aft of the wing on extended beams to form local pitch-control devices. Each of five spanwise wing segments of the wing has one or more motors and photovoltaic arrays, and produces its own lift independent of the other wing segments, to minimize inter-segment loads. Wing dihedral is controlled by separately controlling the local pitch-control devices consisting of a control surface on a boom, such that inboard and outboard wing segment pitch changes relative to each other, and thus relative inboard and outboard lift is varied.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 10, 2016
    Applicant: AeroVironment Inc.
    Inventors: Greg T. Kendall, Derek L. Lisoski, Walter R. Morgan, John A. Griecci
  • Patent number: 9120555
    Abstract: A span-loaded, highly flexible flying wing, having horizontal control surfaces mounted aft of the wing on extended beams to form local pitch-control devices. Each of five spanwise wing segments of the wing has one or more motors and photovoltaic arrays, and produces its own lift independent of the other wing segments, to minimize inter-segment loads. Wing dihedral is controlled by separately controlling the local pitch-control devices consisting of a control surface on a boom, such that inboard and outboard wing segment pitch changes relative to each other, and thus relative inboard and outboard lift is varied.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: September 1, 2015
    Assignee: AeroVironment Inc.
    Inventors: Greg T. Kendall, Derek L. Lisoski, Walter R. Morgan, John A. Griecci
  • Publication number: 20100308161
    Abstract: A span-loaded, highly flexible flying wing, having horizontal control surfaces mounted aft of the wing on extended beams to form local pitch-control devices. Each of five spanwise wing segments of the wing has one or more motors and photovoltaic arrays, and produces its own lift independent of the other wing segments, to minimize inter-segment loads. Wing dihedral is controlled by separately controlling the local pitch-control devices consisting of a control surface on a boom, such that inboard and outboard wing segment pitch changes relative to each other, and thus relative inboard and outboard lift is varied.
    Type: Application
    Filed: August 2, 2010
    Publication date: December 9, 2010
    Inventors: Greg T. Kendall, Derek L. Lisoski, Walter R. Morgan, John A. Griecci
  • Patent number: 7198225
    Abstract: A solar rechargeable, long-duration, span-loaded flying wing, having no fuselage or rudder. Having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing's top surface, the aircraft uses only differential thrust of its eight propellers to turn, pitch and yaw. The wing is configured to deform under flight loads to position the propellers such that the control can be achieved. Each of five segments of the wing has one or more motors and photovoltaic arrays, and produces its own lift independent of the other segments, to avoid loading them. Five two-sided photovoltaic arrays, in all, are mounted on the wing, and receive photovoltaic energy both incident on top of the wing, and which is incident also from below, through a bottom, transparent surface.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: April 3, 2007
    Assignee: Aerovironment, Inc.
    Inventors: Derek L. Lisoski, Greg T. Kendall
  • Publication number: 20030141409
    Abstract: A solar rechargeable, long-duration, span-loaded flying wing, having no fuselage or rudder. Having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing's top surface, the aircraft uses only differential thrust of its eight propellers to turn, pitch and yaw. The wing is configured to deform under flight loads to position the propellers such that the control can be achieved. Each of five segments of the wing has one or more motors and photovoltaic arrays, and produces its own lift independent of the other segments, to avoid loading them. Five two-sided photovoltaic arrays, in all, are mounted on the wing, and receive photovoltaic energy both incident on top of the wing, and which is incident also from below, through a bottom, transparent surface.
    Type: Application
    Filed: December 5, 2002
    Publication date: July 31, 2003
    Inventors: Derek L. Lisoski, Greg T. Kendall