Patents by Inventor Volker Tiedemann

Volker Tiedemann 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).

  • METHOD FOR REPAIRING SEAL SEGMENTS OF ROTOR/STATOR SEALS OF A GAS TURBINE
    Publication number: 20110217484
    Abstract: The subject of the invention is a method for repairing sealing surfaces of seal segments, arranged on the inner circumference of a turbine casing section, of a rotor/stator seal of a gas turbine. With the method according to the invention, first of all material is removed from the sealing surfaces of the seal segments with the exception of the base material of the seal segments, a metallic reinforcing coating with a material thickness of at least 1 mm is applied, and then a ceramic coating with a material thickness of 0.3 to 2 mm is applied to it.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 8, 2011
    Applicant: LUFTHANSA TECHNIK AG
    Inventors: Tim Lübcke, Volker Tiedemann
  • Inhaler with powder dislodging member
    Patent number: 7841340
    Abstract: A powder inhaler for administering powder by inhalation, comprising: a flow path defined by a plurality of surfaces through which a stream of air is in use drawn on inhalation by a user; and dosing means (18) for providing a dose of powder to the flow path for entrainment in the stream of air; characterized in that the inhaler further comprises dislodging means for dislodging powder accumulated on a surface of the flow path downstream of the dosing means (18).
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: November 30, 2010
    Assignee: AstraZeneca AB
    Inventors: Jan Andersson, Allan Dagsland, Hans Strid, Jan Trofast, Stefan Friess, Harald Heckenmueller, Uwe Rollwage, Volker Tiedemann, John Conway
  • Inhalation device
    Patent number: 7779836
    Abstract: A powder inhaler for administering powder by inhalation, comprising: a flow path defined by a plurality of surfaces through which a stream of air is in use drawn on inhalation by a user; and dosing means (18) for providing a dose of powder to the flow path for entrainment in the stream of air; characterized in that the inhaler further comprises dislodging means for dislodging powder accumulated on a surface of the flow path downstream of the dosing means (18).
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: August 24, 2010
    Assignee: AstraZeneca AB
    Inventors: Jan Andersson, Allan Dagsland, Hans Strid, Jan Trofast, Stefan Friess, Harald Heckenmueller, Uwe Rollwage, Volker Tiedemann, John Conway
  • INHALATION DEVICE
    Publication number: 20080092886
    Abstract: A powder inhaler for administering powder by inhalation, comprising: a flow path defined by a plurality of surfaces through which a stream of air is in use drawn on inhalation by a user; and dosing means (18) for providing a dose of powder to the flow path for entrainment in the stream of air; characterized in that the inhaler further comprises dislodging means for dislodging powder accumulated on a surface of the flow path downstream of the dosing means (18).
    Type: Application
    Filed: November 15, 2007
    Publication date: April 24, 2008
    Inventors: Jan Andersson, Allan Dagsland, Hans Strid, Jan Trofast, Stefan Friess, Harald Heckenmueller, Uwe Rollwage, Volker Tiedemann, John Conway
  • Inhaler with vibrational powder dislodgement
    Patent number: 7228860
    Abstract: A powder inhaler for administering powder by inhalation comprising: a flow path defined by a plurality of surfaces through which a stream of air is in use drawn on inhalation by a user; and dosing means (18) for providing a dose of powder to the flow path for entrainment in the stream of air; characterized in that the inhaler further comprises dislodging means for dislodging powder accumulated on a surface of the flow path downstream of the dosing means (18).
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: June 12, 2007
    Assignee: AstraZeneca AB
    Inventors: Jan Andersson, Allan Dagsland, Harald Heckenmueller, Uwe Rollwage, Volker Tiedemann, John Conway
  • Inhalation device
    Publication number: 20050194008
    Abstract: A powder inhaler for administering powder by inhalation comprising: a flow path defined by a plurality of surfaces through which a stream of air is in use drawn on inhalation by a user; and dosing means (18) for providing a dose of powder to the flow path for entrainment in the stream of air; characterized in that the inhaler further comprises dislodging means for dislodging powder accumulated on a surface of the flow path downstream of the dosing means (18).
    Type: Application
    Filed: May 9, 2005
    Publication date: September 8, 2005
    Inventors: Jan Andersson, Allan Dagsland, Harald Heckenmueller, Uwe Rollwage, Volker Tiedemann, John Conway
  • Inhalation device
    Patent number: 6907880
    Abstract: A blister pack unit for a powder inhaler, comprising a body which includes a plurality of surfaces which each includes a plurality of blisters (21, 22) containing powder containing medicament and are rotationally symmetrically disposed about an imaginary axis.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: June 21, 2005
    Assignee: AstraZeneca AB
    Inventors: Harald Heckenmüller, Ulrich Hetzer, Heike Kublik, Alfred von Schuckmann, Volker Tiedemann
  • Inhalation device
    Publication number: 20040065325
    Abstract: A powder inhaler for administering powder by inhalation, comprising: a flow path defined by a plurality of surfaces through which a stream of air is in use drawn on inhalation by a user; and dosing means (18) for providing a dose of powder to the flow path for entrainment in the stream of air; characterized in that the inhaler further comprises dislodging means for dislodging powder accumulated on a surface of the flow path downstream of the dosing means (18).
    Type: Application
    Filed: September 29, 2003
    Publication date: April 8, 2004
    Applicant: AstraZeneca AB, a Swedish corporaion
    Inventors: Jan Andersson, Allan Dagsland, Hans Strid, Jan Trofast, Stefan Friess, Harald Heckenmueller, Uwe Rollwage, Volker Tiedemann, John Conway
  • Inhalation device
    Patent number: 6655380
    Abstract: A powder inhaler for administering powder by inhalation, comprising: a flow path defined by a plurality of surfaces through which a stream of air is in use drawn on inhalation by a user; and dosing means (18) for providing a dose of powder to the flow path for entertainment in the stream of air; characterized in that the inhaler further comprises dislodging means for dislodging powder accumulated on a surface of the flow path downstream of the dosing means (18).
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: December 2, 2003
    Assignee: Astrazeneca AB
    Inventors: Jan Andersson, Allan Dagsland, Hans Strid, Jan Trofast, Stefan Friess, Harald Heckenmueller, Uwe Rollwage, Volker Tiedemann, John Conway