Patents by Inventor Michael Nagel

Michael Nagel 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).

  • Publication number: 20020062982
    Abstract: The microstrip line for high frequency applications has a metallic ground electrode, a metallic signal conductor and a dielectric arranged between ground electrode and signal conductor. The dielectric consists of a relaxed, more specifically pre-stretched, polymer film that is coated on one side with a self-adhesive layer.
    Type: Application
    Filed: January 17, 2002
    Publication date: May 30, 2002
    Inventors: Michael Nagel, Thomas Dekorsy, Heinrich Kurz
  • Patent number: 6322048
    Abstract: The present invention relates to an actuator for electromagnetic valve control in which the yokes of the electromagnets have a slotted design by means of the yokes consisting of a plurality of solid parts joined to one another.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: November 27, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Matthias Gramann, Kurt Maute, Christoph Müller, Michael Nagel, Wolfgang Thiel, Steffen Walter, Rudolf Wilczek
  • Patent number: 6216652
    Abstract: A method of operating an actuator for electromagnetically controlling a valve in an internal combustion engine involves supplying a heating current to the operating coils of the actuator before starting the internal combustion engine from a cold start condition. Thereby, the operating coils, the components surrounding them, and the lubricant are heated to ensure proper viscosity of the lubricant and thus proper operation of the actuator.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: April 17, 2001
    Assignee: DaimlerChrysler AG Stuttgart
    Inventors: Matthias Gramann, Michael Nagel, Reinhard Orthmann, Hans-Peter Schoener, Holger Steffen, Werner Wiedemann, Rudolf Wilczek
  • Patent number: 6213147
    Abstract: An actuator for electromagnetically controlling a valve with a device comprising a magnetic field sensor and a magnetic field transmitter for determining the instantaneous position of a retaining plate, the magnetic field sensor and the magnetic field transmitter being surrounded by magnetic screening.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: April 10, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Matthias Gramann, Gunther Breu, Michael Nagel, Roger Pohlmann
  • Patent number: 6037851
    Abstract: On a known electromagnetic actuator for valve control of an internal combustion engine an armature (1) is moved by magnetic force between the pole faces (21, 31) of an opening magnet (2) and a closing magnet (3) to activate an intake/exhaust valve (5). Owing to the work that has to be done when the intake/exhaust valve (5) is opened in order to counteract the high internal gas pressure in the combustion chamber the opening operation takes longer than the closing operation. The disclosed actuator permits faster opening of the intake/exhaust valve (5), in that the magnetic force exerted by the opening magnet (2) is increased for large stroke lengths (d.sub.o) in comparison with the magnetic force exerted by the closing magnet (3) on the armature (1) in conjunction with the same stroke length (d.sub.s) by the provision of a two-section connecting sleeve (7) enclosing the space between the pole faces (21, 31).
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: March 14, 2000
    Assignee: Temic Telefunken microelectronic GmbH
    Inventors: Matthias Gramann, Michael Nagel, Thomas Rockl, Rudolf Wilczek