Patents by Inventor Ludger Hebing

Ludger Hebing 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).

  • Method and device for measuring the difference in magnetic field strength with magnetoresistive sensors
    Patent number: 6310470
    Abstract: A method and device for measuring electric currents in n conductors (n≧2), the measurement of the currents being carried out with (n−1) magnetoresistive sensors. Reliable excess current and/or fault current protection is obtained.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: October 30, 2001
    Assignee: Lust Antriebstechnik GmbH
    Inventors: Ludger Hebing, Juergen Kunze, Thomas Kammer, Andreas Buente, Jan Thorsten Weber
  • Magnetoresistive wheatstone bridge with compensating current conductor for measuring an electric current
    Patent number: 5933003
    Abstract: Measuring devices for determining magnetic fields to be used in particular for the potential-free measurement of the strength of an electric current which generates such a magnetic field. To obviate the need for an intermediate element specially connected into the relevant current conductor and to allow the measurement device instead to be accommodated in a clamp device which needs only to be slipped over the current conductor, the proposed embodiment has two measuring bridges which are fixed on either side of the current conductor, the staggering of the two bridges is assessed from the current magnetic field via a control circuit.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: August 3, 1999
    Assignee: Lust Antriebstechnik GmbH
    Inventors: Ludger Hebing, Juergen Kunze, Karl-Heinz Lust