Patents by Inventor Jean Kressic

Jean Kressic 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).

  • Process for identification of the direction of rotation of two periodic electrical signals at the same frequency
    Patent number: 7337083
    Abstract: A process and apparatus for identification of the direction of rotation of two periodic electrical signals present on two electrical conductors, particularly of a three-phase power system. In this process, the signals are sampled from two conductors by two wires of the test apparatus provided with a connection to ground via a user of the apparatus. The direction of rotation is determined from information provided by the two signals. The direction of rotation is determined during the zero-crossing of the voltage between the two phase signals. The invention can be used in a apparatus for testing of the direction of rotation of the phases of a three-phase network.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: February 26, 2008
    Assignee: Chauvin Arnoux
    Inventors: Daniel Arnoux, Axel Arnoux, Jean Kressic
  • Process for identification of the direction of rotation of two periodic electrical signals at the same frequency
    Publication number: 20050038617
    Abstract: A process and apparatus for identification of the direction of rotation of two periodic electrical signals present on two electrical conductors, particularly of a three-phase power system. In this process, the signals are sampled from two conductors by two wires of the test apparatus provided with a connection to ground via a user of the apparatus. The direction of rotation is determined from information provided by the two signals. The direction of rotation is determined during the zero-crossing of the voltage between the two phase signals. The invention can be used in a apparatus for testing of the direction of rotation of the phases of a three-phase network.
    Type: Application
    Filed: June 23, 2004
    Publication date: February 17, 2005
    Applicant: Chauvin Arnoux
    Inventors: Daniel Arnoux, Axel Arnoux, Jean Kressic