Patents by Inventor Hans Jedlitschka

Hans Jedlitschka 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: 5224592
    Abstract: The disclosure relates to high-voltage change-over switches that are used to apply high voltage alternately to two X-ray tubes. Each of the four switch devices constituting a change-over switch includes a fixed contact element connected to an input terminal of the high voltage and a movable contact element connected to an output terminal by a curved, flexible strip, the shifting of which is obtained by a hinged arm that is actuated by an insulator sleeve surrounding the strip. The rotation of the sleeve in one direction causes contact through a hole in the wall of the sleeve while rotation in the reverse direction causes the contact elements to move away from each other and gives rise to the interposition of the insulator wall between the contact elements at a distance. The disclosed device can be applied to radiology installations.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: July 6, 1993
    Assignee: General Electric CGR S.A.
    Inventors: Hans Jedlitschka, Jacques Sireul
  • Patent number: 5197604
    Abstract: A change-over switch comprises four input terminals connected in pairs to one of the two poles +HT and -HT of a high voltage generator and four output terminals connected in pairs to one of two X-ray tubes. It includes two identical half change-over switches with coupled control, each half change-over switch comprising two contact devices, each constituted by a fixed contact element and a movable contact element between which there is interposed an insulation device when the electrical contact is open. The movable contact elements and the insulation device of each half change-over switch are connected to one another to have combined movements.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: March 30, 1993
    Assignee: General Electric CGR S.A.
    Inventors: Hans Jedlitschka, Jacques Sireul
  • Patent number: 5154638
    Abstract: A high-voltage connector, in particular for feeding the cathode, two cathode filaments, and two gates of an X-ray tube, wherein the connector comprises five connections, one for power supplying the cathode, two for power supplying the cathode filaments, and the last two for power supplying the two gates, the connections being disposed in such a manner that the distance between the cathode connection and a gate connection and the distance between the two gate connections are greater than the distance between the cathode connection and a cathode filament connection.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: October 13, 1992
    Assignee: General Electric CGR SA
    Inventors: Jacques Sireul, Hans Jedlitschka, Jean-Michel Miquel
  • Patent number: 5060253
    Abstract: The invention relates to high-voltage power supplies for X-ray tubes in radiological apparatuses. The invention lies in the fact that the secondary windings of the transformer, the capacitors, and the diodes of the rectifier and voltage-doubler circuits, are all disposed in an enclosure made from two half-shells, whereas the primary winding and the magnetic circuit are disposed outside the enclosure.
    Type: Grant
    Filed: November 23, 1990
    Date of Patent: October 22, 1991
    Assignee: General Electric CGR S.A.
    Inventors: Hans Jedlitschka, Jacques Sireul
  • Patent number: 5003452
    Abstract: In an electrical device for supplying x-ray tubes, the primary and secondary windings of the transformer are wound on circular coil forms which are adapted to fit within two half-shells. The half-shells are constituted by a recessed annular structure in which capacitors are housed. The output terminals of the secondary windings are placed on one side in order to be connected to the capacitors and to diodes over very short distances.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: March 26, 1991
    Assignee: General Electric CGR S.A.
    Inventors: Jacques Sireul, Hans Jedlitschka