Patents by Inventor Helmut Marquard

Helmut Marquard 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: 20020104926
    Abstract: An arrangement for the electrical operation of a door of an aircraft, in particular an electrical drive arrangement for the operation of cabin doors of commercial aircraft. The object of finding a new option for operating the doors of aircraft which guarantees an electrical operation of the door with high reliability and a minimum of weight is met by an arrangement for the electrical operation of a door of an aircraft by providing an electrically powered driven shaft for the operation of the door which is coupled to at least one lever arm of the door mechanism so that it rotates together with it and the rotation of which pivots the lever arm of the door mechanism by a predetermined angle.
    Type: Application
    Filed: June 28, 2001
    Publication date: August 8, 2002
    Inventors: Helmut Marquard, Adolf Schreger