Patents by Inventor Andre Fabre

Andre Fabre 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 anchoring a probe in a well, by opening mobile arms
    Patent number: 4616703
    Abstract: A device for anchoring a probe in a well by opening at least one arm pivotable with respect to the body of the probe by a spring moving a rod in a guide housing of the body and operating arms. In a closed position of the arm, the rod is locked by a bolt and a hydraulic fluid contained in a chamber and maintained at the same pressure as the pressure external to the probe is used for driving the bolt, when the pressure of this fluid is applied thereto intermittently by an electromagnetic valve.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: October 14, 1986
    Assignee: Institut Francais du Petrole
    Inventors: Jean Laurent, Andre Fabre