Patents by Inventor THERESA J. HIRSCH

THERESA J. HIRSCH 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).

  • Devices and methods for determining aircraft weight
    Patent number: 10648850
    Abstract: An example method for in-flight determination of a gross weight of an aircraft includes causing an aircraft to perform a first flight operation defined by a first airspeed that is substantially constant and a descent rate that is substantially constant, determining the first airspeed and a first thrust that caused the aircraft to perform the first flight operation, the first thrust being substantially constant during the first flight operation, causing the aircraft to perform a second flight operation defined by a second airspeed that is substantially constant and a descent rate that is substantially constant, determining the second airspeed and a second thrust that caused the aircraft to perform the second flight operation, the second thrust being substantially constant during the second flight operation, and using the first thrust, the second thrust, the first airspeed, and the second airspeed to determine the gross weight of the aircraft.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: May 12, 2020
    Assignee: THE BOEING COMPANY
    Inventors: Geun I. Kim, John W. Alaimo, Jr., Theresa J. Hirsch
  • DEVICES AND METHODS FOR DETERMINING AIRCRAFT WEIGHT
    Publication number: 20190339111
    Abstract: An example method for in-flight determination of a gross weight of an aircraft includes causing an aircraft to perform a first flight operation defined by a first airspeed that is substantially constant and a descent rate that is substantially constant, determining the first airspeed and a first thrust that caused the aircraft to perform the first flight operation, the first thrust being substantially constant during the first flight operation, causing the aircraft to perform a second flight operation defined by a second airspeed that is substantially constant and a descent rate that is substantially constant, determining the second airspeed and a second thrust that caused the aircraft to perform the second flight operation, the second thrust being substantially constant during the second flight operation, and using the first thrust, the second thrust, the first airspeed, and the second airspeed to determine the gross weight of the aircraft.
    Type: Application
    Filed: May 1, 2018
    Publication date: November 7, 2019
    Inventors: GEUN I. KIM, JOHN W. ALAIMO, JR., THERESA J. HIRSCH