Patents by Inventor Stephan Hotzeldt

Stephan Hotzeldt 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).

  • Patent number: 9523378
    Abstract: A fastening arrangement for fastening an aircraft interior-trim component to an aircraft structural element, including a pin, including a first coupling element having a bearing-contact face portion, wherein the first bearing-contact face thereof has an engagement projection provided to engage with an opening in the surface of the aircraft interior-trim component. An engagement surface of the bearing-contact face portion includes an engagement element arrangement and includes a spacer fixable relative to the aircraft structural element. An engagement face is provided with an engagement element arrangement and includes a through-bore. When the engagement surface of the coupling element is in bearing contact with an engagement face of the spacer, the coupling element and the spacer cannot be displaced with respect to each other in the plane of the engagement surface, and engagement of the engagement elements arrangement is possible in relative positions of the engagement surface and the engagement face.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: December 20, 2016
    Assignee: Airbus Operations GmbH
    Inventor: Stephan Hötzeldt
  • Publication number: 20160152341
    Abstract: An aircraft comprising a fuselage, a wing attached thereto, a jet engine attached to the wing or to the fuselage and comprising a main engine and an accessory arrangement, and a heat recovery arrangement. The heat recovery arrangement comprises a heat exchanger arranged in an exhaust zone of the main engine such that heat can be exchanged between an exhaust gas stream exiting the main engine and a working fluid passed through the heat exchanger, an energy converting arrangement received in the fuselage and passed through by the working fluid, the energy converting arrangement comprising an energy source driven by the working fluid, and a pipe arrangement for recirculating working fluid between the heat exchanger and the energy converting arrangement. An aircraft is provided having reduced complexity and increased efficiency, and an energy recirculation line is provided for transmitting energy from the energy source to the accessory arrangement.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 2, 2016
    Inventor: Stephan Hötzeldt
  • Patent number: 9005731
    Abstract: The present invention concerns a composite plate (1) comprising a first cover layer (3), a second cover layer (5), and a core layer (7) arranged between the first and the second cover layers (3, 5) and having a plurality of cells (9) which are at least partially open towards the first cover layer (3) and which are separated from each other by walls as well as a method of draining such a composite plate (1). In order to provide such a composite plate (1) in which improved resistance to ingress of liquid or formation of liquid accumulations is guaranteed in a simple and continual fashion it is proposed that a draining layer (13) is provided in the first cover layer (3), wherein the cells (9) are at least partially covered by the draining layer (13).
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: April 14, 2015
    Assignee: Airbus Operations GmbH
    Inventors: Stephan Hötzeldt, Oliver Schindler, Steffen Erfurth, Bernd Ohlendorf
  • Publication number: 20140091179
    Abstract: A fastening arrangement for fastening an aircraft interior-trim component to an aircraft structural element, including a pin, including a first coupling element having a bearing-contact face portion, wherein the first bearing-contact face thereof has an engagement projection provided to engage with an opening in the surface of the aircraft interior-trim component. An engagement surface of the bearing-contact face portion includes an engagement element arrangement and includes a spacer fixable relative to the aircraft structural element. An engagement face is provided with an engagement element arrangement and includes a through-bore. When the engagement surface of the coupling element is in bearing contact with an engagement face of the spacer, the coupling element and the spacer cannot be displaced with respect to each other in the plane of the engagement surface, and engagement of the engagement elements arrangement is possible in relative positions of the engagement surface and the engagement face.
    Type: Application
    Filed: September 12, 2013
    Publication date: April 3, 2014
    Inventor: Stephan Hötzeldt
  • Patent number: 7837007
    Abstract: A sound absorption element for means of transport, in particular for aircraft, comprising at least one sound absorption panel arranged on a base panel with the base panel comprising a multitude of recesses, in particular a hole grid or the like, for the transmission of sound. According to the invention, the sound absorption panels are each framed by a frame, wherein on the at least one frame at least in some sections a transition profile, in particular to prevent fatigue fractures due to stepwise changes of rigidity between the at least one frame and the base panel is arranged. Due to the base panel comprising a multitude of recesses, in particular comprising a hole grid, in connection with the sound absorption panels an air-permeable sound absorption element can be achieved.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: November 23, 2010
    Assignee: Airbus Deutschland GmbH
    Inventors: Stephan Hötzeldt, Malte Becker, Bernd Ohlendorf, Steffen Erfurth
  • Publication number: 20090311469
    Abstract: The present invention concerns a composite plate (1) comprising a first cover layer (3), a second cover layer (5), and a core layer (7) arranged between the first and the second cover layers (3, 5) and having a plurality of cells (9) which are at least partially open towards the first cover layer (3) and which are separated from each other by walls as well as a method of draining such a composite plate (1). In order to provide such a composite plate (1) in which improved resistance to ingress of liquid or formation of liquid accumulations is guaranteed in a simple and continual fashion it is proposed that a draining layer (13) is provided in the first cover layer (3), wherein the cells (9) are at least partially covered by the draining layer (13).
    Type: Application
    Filed: May 18, 2007
    Publication date: December 17, 2009
    Applicant: AIRBUS DEUTSCHLAND GMBH
    Inventors: Stephan Hötzeldt, Oliver Schindler, Steffen Erfurth, Bernd Ohlendorf
  • Publication number: 20090133958
    Abstract: A sound absorption element for means of transport, in particular for aircraft, comprising at least one sound absorption panel arranged on a base panel with the base panel comprising a multitude of recesses, in particular a hole grid or the like, for the transmission of sound. According to the invention, the sound absorption panels are each framed by a frame, wherein on the at least one frame at least in some sections a transition profile, in particular to prevent fatigue fractures due to stepwise changes of rigidity between the at least one frame and the base panel is arranged. Due to the base panel comprising a multitude of recesses, in particular comprising a hole grid, in connection with the sound absorption panels an air-permeable sound absorption element can be achieved.
    Type: Application
    Filed: August 23, 2006
    Publication date: May 28, 2009
    Applicant: Airbus Deutschland GmbH
    Inventors: Stephan Hotzeldt, Malte Becker, Bernd Ohlendorf, Steffen Erfurth
  • Publication number: 20090090580
    Abstract: A sandwich element for the sound-absorbing inner cladding of means of transport such as an aircraft. The sandwich element includes a three-dimensionally constructed core structure disposed between two cover layers that run substantially parallel to one another at a distance. A plurality of passages for sound transmission are incorporated in the core structure and/or in at least one cover layers, wherein at least one sound absorption layer is disposed in the area of at least one cover layer at least in parts.
    Type: Application
    Filed: May 24, 2006
    Publication date: April 9, 2009
    Applicant: Airbus Deutschland GmbH
    Inventors: Stephan Hotzeldt, Oliver Schindler, Steffen Erfurth, Bernd Ohlendorf