Patents by Inventor Andreas Jahnke

Andreas Jahnke 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: 4843333
    Abstract: A synchrotron radiation source contains a particle track with a curved track section. A beam guiding chamber surrounding the particle track has an exit opening for the synchrotron radiation leading in an outward direction. A magnetic device has superconducting coil windings located on both sides of the particle track having a peripheral outer rim. In addition, a device for the mechanical fixation of the superconducting coil windings is provided. The fixation device has at least one support element at the peripheral outer rim of the magnetic device. The support element is located further outward than the exit opening for the synchrotron radiation and acts substantially perpendicular to the direction of the radiation. The support element is covered from the synchrotron radiation by a radiation absorber. The use of a support element provides simple and safe support for the superconducting coil windings in the area of the radiation exit opening.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: June 27, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Marsing, Andreas Jahnke
  • Patent number: 4769623
    Abstract: A magnetic device is arranged in a curved section of the path of electrically charged particles of an acceleration installation around a beam guiding chamber. The magnetic device contains curved coil windings built up of superconducting rectangular conductors, which have convex outsides, concave insides as well as transition regions at the coil ends between these sides. The superconducting coil windings (4a) according to the invention are arranged at least with their winding parts (57, 58) forming the convex outsides (53) and concave insides (54) in grooves of correspondingly formed coil formers of the magnetic device, with the grooves extending downward at least approximately perpendicular to the plane (x-y plane) determined by the particle path. In addition, the superconducting coil windings (4a') in the region of their coil ends (55') are bent up saddle-shaped.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: September 6, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Marsing, Konrad Meier, Andreas Jahnke
  • Patent number: 4734653
    Abstract: A magnetic field apparatus for a particle accelerator having a particle track having curved sections contains several magnetic field-generating windings, and at least one supplemental winding provided for focusing the electrically charged particles. The system does not require pre-accelerators and relatively large particle streams should be capable of being accelerated nevertheless to relatively high energy levels. In the region of at least one of the curved sections of the particle track, an azimuthal guiding field for the particles is generated by the supplemental winding during the acceleration phase. This supplemental winding is designed as an appropriately curved electric conductor arrangement which in part encloses the particle track and which is designed in the manner of a hollow channel open toward the outside. The conductor arrangement is appropriately structured for suppressing eddy currents and carries a current transversely to the particle track.
    Type: Grant
    Filed: February 5, 1986
    Date of Patent: March 29, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventor: Andreas Jahnke
  • Patent number: 4710838
    Abstract: A magnetic thin-film head with layer-wise build-up on a nonmagnetic substrate for a recording medium which can be magnetized vertically, comprises a ring head-like conduction body for carrying magnetic flux having two magnet legs, of which the end pole pieces facing the recording medium have, respectively, a predetermined small width transverse to the direction of motion and change into widening leg parts a space being provided between the two magnet legs through which the turns of a write/read coil winding extend. A magnetic head having highly efficient write and read functions is thereby obtained.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: December 1, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventor: Andreas Jahnke
  • Patent number: 4710722
    Abstract: Magnetic field-generating apparatus for an installation for accelerating electrically charged particles, the particle track of which comprises curved and straight sections, contains main magnetic field generating windings and at least one supplemental winding which is provided for focusing the particles on the particle track. It should be possible to accelerate relatively large particle streams to relatively high energy levels without the need for separate preaccelerators. In the region of at least one of the curved sections of the particle track the supplemental winding is designed as a conductor arrangement forming a quadrupole triplet for focusing the particles during their acceleration phase, the turns of the supplemental winding being arranged on both sides of the plane in which the particle track lies.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: December 1, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventor: Andreas Jahnke
  • Patent number: 4694868
    Abstract: A method for manufacturing a disc-shaped curved magnet coil, particularly for a system for accelerating and/or storing electrically charged particles such as electrons. The conductors of the coil to be made are to be arranged around a winding core having a convex outside and a concave inside and are then to be fixed in position around the winding core. A coil form or fitting piece of predetermined shape is first added to a winding core, so that a provisional winding body with only positive radii of curvature on its outsides is formed. The conductors are wound under tension around the winding body and subsequently are fastened only to the winding core of the winding body and, after the coil form is removed, the thus exposed conductor portions facing the region of the concave inside of the winding core are pressed against this inside and fixed in position.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: September 22, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventors: Andreas Jahnke, Gunter Ries, Konrad Meier
  • Patent number: 4680565
    Abstract: A magnetic field device for a system for acceleration and/or storage of electrically charged particles, particularly electrons, comprises curved sections in the particle trajectory, in which an accordingly curved dipole magnet is arranged, which contains superconducting windings and a supplemental winding and with which a magnetic guidance field for the particle beam can be generated which has a weakly focusing effect due to corresponding field gradients. It should be possible to bring about these field gradients in a relatively simple manner also for a high magnetic flux density. Accordingly, it is provided for this purpose that with each dipole magnet which is at least free of iron, a superconducting supplemental winding is associated which is curved accordingly, adjoins at least with its convex outside the region of the concave inside of the curved dipole windings, and with which the necessary field gradients can be brought about in substance.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: July 14, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventor: Andreas Jahnke