Patents by Inventor Jacques Esteve

Jacques Esteve 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 for measuring the charge state of an accumulator and a device for implementing such method
    Patent number: 4453129
    Abstract: The present invention provides a method for measuring the charge state of an accumulator and a device for implementing such method.The method consists in measuring the temporary voltage drop at the terminals of the accumulator during delivery of a high current. The device for measuring this maximum voltage drop comprises a first maximum detector (43) supplying a voltmeter (42) and connected to the output terminal of a subtractor (44) whose so-called inverting input is connected to the accumulator through a filter (45) and whose so-called non inverting input is connected to the accumulator through a second maximum detector (46).Application to measuring the charge state of an accumulator.
    Type: Grant
    Filed: September 4, 1981
    Date of Patent: June 5, 1984
    Assignee: Cristec Industries
    Inventors: Francois-Claude Lissalde, Jacques Esteve