Patents by Inventor Matthias List

Matthias List 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: 20050245336
    Abstract: A fastening arrangement on a belt transmission as well as a method for manufacturing it between a shaft (1) and one piston-cylinder unit (5) of a cone pulley pair (2) connected with the shaft (1). The piston-cylinder unit (5) has a first component (6) connected displaceable axially on the shaft (1), but torsion-resistant with the same, which is formed by a cone pulley of the cone pulley pair or by a part operatively connected with a cone pulley displaceable axially on the shaft (1). A second component (7) is connected axially and torsion resistant with the shaft (1), whereby the two components (6, 7) for their part form one pressure chamber (8) of the piston-cylinder unit (5) subject to action by a pressure medium. A simplified and more cost effective fastening arrangement as well as a suitable method for manufacturing it is essentially accomplished by a force and form-locking connection between the second component (7) and the shaft (1).
    Type: Application
    Filed: April 22, 2005
    Publication date: November 3, 2005
    Inventor: Matthias List
  • Patent number: 6582566
    Abstract: Process and device for reducing an ignition voltage of power pulses in plasmas operated in a pulsed manner with long pulse-off times. The process includes generating a power pulsed plasma at a pulse duty factor, the pulse duty factor being a ratio of pulse-on time to pulse-off time, and at least before the beginning of the pulse-on time of the power pulses, producing charge carriers using an additional plasma discharge at a lower power than that of the power pulses. The device includes a vacuum chamber including at least one pump system, an arrangement for producing plasma, the arrangement including at least one anode and at least one cathode, an energy source connected to the cathode and the anode which can be pulsed in the frequency range of between approximately 10 Hz to approximately 1 MHZ, and a mechanism for one of producing an additional plasma discharge.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: June 24, 2003
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Matthias List, Uwe Krause
  • Publication number: 20020043336
    Abstract: Process and device for reducing an ignition voltage of power pulses in plasmas operated in a pulsed manner with long pulse-off times. The process includes generating a power pulsed plasma at a pulse duty factor, the pulse duty factor being a ratio of pulse-on time to pulse-off time, and at least before the beginning of the pulse-on time of the power pulses, producing charge carriers using an additional plasma discharge at a lower power than that of the power pulses. The device includes a vacuum chamber including at least one pump system, an arrangement for producing plasma, the arrangement including at least one anode and at least one cathode, an energy source connected to the cathode and the anode which cab be pulsed in the frequency range of between approximately 10 Hz to approximately 1 MHz, and a mechanism for one of producing an additional plasma discharge.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 18, 2002
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG e.V.
    Inventors: Matthias List, Uwe Krause