Patents by Inventor Martin Griffith ROWLANDS

Martin Griffith ROWLANDS 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 door control
    Patent number: 11420720
    Abstract: An aircraft door controller 100 including a receiver 110 configured to receive a command 14 to move an aircraft door between an open position and a closed position relative to a door frame. The aircraft door controller 100 is configured to not store the command 14 when power to move the aircraft door between the open position and the closed position relative to the door frame is unavailable.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: August 23, 2022
    Assignee: Airbus Operations Limited
    Inventors: Mark Grufferty, Nicholas Elliott, Martin Griffith Rowlands, Christopher James Perkins
  • Control system and method for landing gear extension/retraction
    Patent number: 11136114
    Abstract: A control system has first and second processing modules for controlling retraction and extension of an aircraft landing gear assembly. The processing modules operate independently providing redundancy. Each processing module is configured to perform a first sequence of steps for retracting the landing gear assembly and a second sequence of steps for extending the landing gear assembly. A step of switching control from one processing module to the other (e.g. an avionics side changeover step) is performed (a) as part of the first sequence of steps, but only after the landing gear assembly has been retracted, or (b) as part of the second sequence of steps. By ensuring that the step of switching control is performed at such times, and not for example between initiation of the first sequence of steps and the retraction of the landing gear assembly, the landing gear assembly may be retracted sooner after such initiation.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: October 5, 2021
    Assignee: Airbus Operations Limited
    Inventors: Martin Griffith Rowlands, Maxwell William Jones, Graham King, Trevor Anthony Brighton, Matthew Gadd
  • CONTROL SYSTEM AND METHOD FOR LANDING GEAR EXTENSION/RETRACTION
    Publication number: 20200055592
    Abstract: A control system has first and second processing modules for controlling retraction and extension of an aircraft landing gear assembly. The processing modules operate independently providing redundancy. Each processing module is configured to perform a first sequence of steps for retracting the landing gear assembly and a second sequence of steps for extending the landing gear assembly. A step of switching control from one processing module to the other (e.g. an avionics side changeover step) is performed (a) as part of the first sequence of steps, but only after the landing gear assembly has been retracted, or (b) as part of the second sequence of steps. By ensuring that the step of switching control is performed at such times, and not for example between initiation of the first sequence of steps and the retraction of the landing gear assembly, the landing gear assembly may be retracted sooner after such initiation.
    Type: Application
    Filed: August 30, 2019
    Publication date: February 20, 2020
    Inventors: Martin Griffith ROWLANDS, Maxwell William JONES, Graham KING, Trevor Anthony BRIGHTON, Matthew GADD
  • AIRCRAFT DOOR CONTROL
    Publication number: 20180327073
    Abstract: An aircraft door controller 100 including a receiver 110 configured to receive a command 14 to move an aircraft door between an open position and a closed position relative to a door frame. The aircraft door controller 100 is configured to not store the command 14 when power to move the aircraft door between the open position and the closed position relative to the door frame is unavailable.
    Type: Application
    Filed: May 15, 2018
    Publication date: November 15, 2018
    Inventors: Mark GRUFFERTY, Nicholas ELLIOTT, Martin Griffith ROWLANDS, Christopher James PERKINS