Patents by Inventor Thomas Ferger

Thomas Ferger 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).

  • Generating X-ray pulses during X-ray imaging
    Patent number: 10194877
    Abstract: Systems and methods are provided for generating X-ray pulses during X-ray imaging. A high voltage of an X-ray tube is automatically switched off. The tube voltage decays and upon reaching a predefined threshold value of the tube voltage or a predefined waiting time after switching off the high voltage, a grating voltage of a grating arranged between an emitter and an anode of the X-ray tube is automatically switched on. No electrons reach the anode from the emitter, and the tube current drops to the value zero.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: February 5, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Philipp Bernhardt, Thomas Ferger, Markus Schild, Kai-Uwe Taubenreuther, Mathias Kraus
  • GENERATING X-RAY PULSES DURING X-RAY IMAGING
    Publication number: 20180139829
    Abstract: Systems and methods are provided for generating X-ray pulses during X-ray imaging. A high voltage of an X-ray tube is automatically switched off. The tube voltage decays and upon reaching a predefined threshold value of the tube voltage or a predefined waiting time after switching off the high voltage, a grating voltage of a grating arranged between an emitter and an anode of the X-ray tube is automatically switched on. No electrons reach the anode from the emitter, and the tube current drops to the value zero.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 17, 2018
    Inventors: Philipp Bernhardt, Thomas Ferger, Markus Schild, Kai-Uwe Taubenreuther, Mathias Kraus
  • X-ray tube
    Patent number: 9673592
    Abstract: An x-ray tube includes a vacuum housing. A cathode and an anode are disposed in the vacuum housing and insulated by at least one insulation element. Upon application of a high voltage, the cathode emits electrons that strike the anode as an electron beam. A voltage arrester device with an insulation path has a field strength that is higher than a field strength at the insulation element. If a voltage flashover occurs, the voltage is discharged via the voltage arrester device.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: June 6, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ronald Dittrich, Thomas Ferger, Christian Hoffmann
  • X-Ray Tube
    Publication number: 20140168832
    Abstract: An x-ray tube includes a vacuum housing. A cathode and an anode are disposed in the vacuum housing and insulated by at least one insulation element. Upon application of a high voltage, the cathode emits electrons that strike the anode as an electron beam. A voltage arrester device with an insulation path has a field strength that is higher than a field strength at the insulation element. If a voltage flashover occurs, the voltage is discharged via the voltage arrester device.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 19, 2014
    Inventors: Ronald Dittrich, Thomas Ferger, Christian Hoffmann
  • X-RAY TUBE AND METHOD TO OPERATE AN X-RAY TUBE
    Publication number: 20120281815
    Abstract: An x-ray tube has an evacuated, rotatable housing in which are arranged a cathode designed to emit an electron beam and an anode interacting with this cathode, and two quadrupole magnet systems arranged outside of the housing and spaced apart from one another that are provided to influence the electron beam.
    Type: Application
    Filed: April 26, 2012
    Publication date: November 8, 2012
    Inventors: Thomas Ferger, Sven Fritzler, Dieter Matuszok
  • Cathode
    Patent number: 8232714
    Abstract: A cathode has a cathode head in which is arranged at least one emitter that emits electrons upon application of a heating voltage. At least one series resistor is connected in the voltage feed to at least one emitter. The use of such a cathode in an x-ray tube enables x-ray exposures with a high quality.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: July 31, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Ferger, Sven Fritzler, Dieter Matuszok
  • CATHODE
    Publication number: 20110062853
    Abstract: A cathode has a cathode head in which is arranged at least one emitter that emits electrons upon application of a heating voltage. At least one series resistor is connected in the voltage feed to at least one emitter. The use of such a cathode in an x-ray tube enables x-ray exposures with a high quality.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 17, 2011
    Inventors: Thomas Ferger, Sven Fritzler, Dieter Matuszok