Patents by Inventor Luc Herbin

Luc Herbin 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).

  • Device for measuring oxygen content in a gas medium
    Patent number: 6192874
    Abstract: The apparatus includes a sensor capable of delivering a voltage representative of the ratio between a reference oxygen pressure and the oxygen pressure in a volume of the sensor and provided with electrodes (12, 14) via which it is possible to pass a pumping current that controls said oxygen pressure in the volume, and monitoring and control means including a digital controller (26) receiving said representative voltage on an input and suitable for delivering the pumping current. The monitoring and control means deliver the pumping current in the form of a current that varies continuously and progressively, without interruptions, governed by the digital controller in such a manner as to servo-control the input voltage to a determined value.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: February 27, 2001
    Assignee: Sagem SA
    Inventors: Christophe Dekoninck, Louis Delgrange, Luc Herbin, Pierre Neyrat, Frédéric Aimard, Jean-Marie Taupin