Patents by Inventor Jean-Francois Falcon

Jean-Francois Falcon 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 and apparatus for braking a derrick winch
    Patent number: 4865393
    Abstract: The invention relates to the braking, by means of a control lever, of the winch of a derrick equipped with a band brake and located away from the lever. The lever and the band brake are included in a servo-control circuit and connected by an electric transmission line. A force return is provided on the lever by means of a torque motor receiving the position error signal relative to the mobile end of the band in relation to the control value position given by the lever.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: September 12, 1989
    Assignee: Schlumberger Technology Corporation
    Inventor: Jean-Francois Falcon