Patents by Inventor Alessandro P. Sassi

Alessandro P. Sassi 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).

  • Aircraft lift control system with acceleration and attitude limiting
    Patent number: 4485446
    Abstract: An aircraft vertical lift guidance signal is developed for providing optimum aircraft lift with limiting to avoid excessive acceleration and attitude. A lift computer produces an angle of attack signal as a function of aircraft altitude rate minus longitudinal acceleration such that demand increases in acceleration result in an increased angle of attack, thereby limiting acceleration. Attitude limiting is achieved by limiting the longitudinal signal to a constant value in response to aircraft acceleration exceeding a reference level.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: November 27, 1984
    Assignee: The Boeing Company
    Inventor: Alessandro P. Sassi
  • Lift control system for aircraft vertical path guidance
    Patent number: 4326253
    Abstract: A system for providing an optimum lift demand signal for aircraft maneuvers such as "go-around" includes a computer for generating a reference angle of attack signal which is functionally related to the aircraft's vertical velocity. The reference signal is compared with a signal corresponding to the aircraft's actual angle of attack, thereby producing an error signal. The error signal is utilized as a control to the aircraft's dynamics for optimizing the aircraft's climb-out performance.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: April 20, 1982
    Assignee: The Boeing Company
    Inventors: Michael G. Cooper, Alessandro P. Sassi