Patents by Inventor Michel Rignon

Michel Rignon 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).

  • Patent number: 4151459
    Abstract: A method of and an apparatus for localizing line faults in security lines for ski lifts and the like in which a voltage step is applied to the security line, the response to this voltage step is determined and this response is compared to the response obtained in the absence of a fault, the difference resulting from the comparison indicating the place of the fault and the type of fault.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: April 24, 1979
    Assignee: Metraplan Spaa - Societe Anonyme
    Inventors: Aime Fayolle, Michel Rignon