Patents by Inventor Ludwig DANNEMANN

Ludwig DANNEMANN 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).

  • Passive pitch angle adjustment apparatus
    Patent number: 10723450
    Abstract: A rotor or propeller may have rotor blades and a passive pitch angle adjustment apparatus. The passive pitch angle adjustment apparatus may include levers, rods, and central rod. Levers may be connected to rotor blades and rotate them around a respective pitch axis. Rods may be connected to levers and mechanically link levers with each other via central point that is located outside rotor plane. Central rod may connect central point with base point that is located in a longitudinal direction of rotor axis. The passive pitch angle adjustment apparatus may enable a cyclic pitch adjustment of the rotor blades and block a collective pitch adjustment of the rotor blades.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: July 28, 2020
    Assignee: AIRBUS HELICOPTERS DEUTSCHLAND GMBH
    Inventors: Patrik Schmiedel, Harald Leitner, Julian Kraus, Ludwig Dannemann, Uwe Kiesewetter
  • PASSIVE PITCH ANGLE ADJUSTMENT APPARATUS
    Publication number: 20190263514
    Abstract: A rotor or propeller may have rotor blades and a passive pitch angle adjustment apparatus. The passive pitch angle adjustment apparatus may include levers, rods, and central rod. Levers may be connected to rotor blades and rotate them around a respective pitch axis. Rods may be connected to levers and mechanically link levers with each other via central point that is located outside rotor plane. Central rod may connect central point with base point that is located in a longitudinal direction of rotor axis. The passive pitch angle adjustment apparatus may enable a cyclic pitch adjustment of the rotor blades and block a collective pitch adjustment of the rotor blades.
    Type: Application
    Filed: February 25, 2019
    Publication date: August 29, 2019
    Applicant: AIRBUS HELICOPTERS DEUTSCHLAND GMBH
    Inventors: Patrik SCHMIEDEL, Harald LEITNER, Julian KRAUS, Ludwig DANNEMANN, Uwe KIESEWETTER