Patents by Inventor Andre Castela

Andre Castela 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: 3940111
    Abstract: This apparatus comprises a main jack for supporting elements from the installation and a regulating device which includes at least one pivoting jack and makes use of a source of pressurized fluid in communication with a chamber of variable volume in which the pressure of the fluid varies in inverse proportion with respect to the volume of the chamber. The main jack and the regulating device are connected in parallel to the source of pressurized fluid and the regulating device supplies a pressurized auxiliary fluid to means for adjusting the force exerted by the main jack.
    Type: Grant
    Filed: May 2, 1973
    Date of Patent: February 24, 1976
    Assignee: Institut Francaise du Petrole, des Carburants et Lubrifiants
    Inventors: Andre Castela, Philippe Joubert