Patents by Inventor Helmut FIETZ

Helmut FIETZ 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).

  • Rotary wing aircraft with a fuselage that comprises at least one structural stiffened panel
    Patent number: 10556662
    Abstract: A rotary wing aircraft with a fuselage that comprises at least one structural stiffened panel, the structural stiffened panel comprising a stressed skin and a stiffening framework that is rigidly attached to the stressed skin, wherein the stressed skin comprises an inner skin, an outer skin and a core element assembly that is arranged between the inner skin and the outer skin, the core element assembly comprising at least one viscoelastic core element and at least one intermediate core element that are tessellated, wherein the at least one viscoelastic core element is provided for noise and vibration damping.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: February 11, 2020
    Assignee: AIRBUS HELICOPTERS DEUTSCHLAND GMBH
    Inventors: Axel Fink, Andreas Rack, Helmut Fietz
  • ROTARY WING AIRCRAFT WITH A FUSELAGE THAT COMPRISES AT LEAST ONE STRUCTURAL STIFFENED PANEL
    Publication number: 20180043982
    Abstract: A rotary wing aircraft with a fuselage that comprises at least one structural stiffened panel, the structural stiffened panel comprising a stressed skin and a stiffening framework that is rigidly attached to the stressed skin, wherein the stressed skin comprises an inner skin, an outer skin and a core element assembly that is arranged between the inner skin and the outer skin, the core element assembly comprising at least one viscoelastic core element and at least one intermediate core element that are tessellated, wherein the at least one viscoelastic core element is provided for noise and vibration damping.
    Type: Application
    Filed: July 21, 2017
    Publication date: February 15, 2018
    Applicant: AIRBUS HELICOPTERS DEUTSCHLAND GMBH
    Inventors: Axel FINK, Andreas RACK, Helmut FIETZ
  • Drainage end cap device for draining fluid from a hollow space in a vehicle
    Patent number: 9862475
    Abstract: A drainage end cap device for draining fluid from a hollow space in a vehicle, comprising a mounting unit that is durably mountable in a super-imposed manner onto a drainage opening provided in an outer shell of a vehicle, wherein a drainage cap with a drainage channel is provided, the drainage cap being removably mountable to the mounting unit and the drainage channel being at least partly zigzagged over a longitudinal extension of the drainage cap.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: January 9, 2018
    Assignee: Airbus Helicopters Deutschland GmbH
    Inventors: Helmut Fietz, Kaspar Von-Wilmowsky, Frank Singer
  • DRAINAGE END CAP DEVICE FOR DRAINING FLUID FROM A HOLLOW SPACE IN A VEHICLE
    Publication number: 20160159454
    Abstract: A drainage end cap device for draining fluid from a hollow space in a vehicle, comprising a mounting unit that is durably mountable in a super-imposed manner onto a drainage opening provided in an outer shell of a vehicle, wherein a drainage cap with a drainage channel is provided, the drainage cap being removably mountable to the mounting unit and the drainage channel being at least partly zigzagged over a longitudinal extension of the drainage cap.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 9, 2016
    Inventors: Helmut FIETZ, Kaspar VON-WILMOWSKY, Frank SINGER