Patents by Inventor Federico Alberto Mezzatesta

Federico Alberto Mezzatesta 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).

  • Mud tank with pressurized compartment
    Publication number: 20050207272
    Abstract: An agitator for agitating drilling fluid or other slurries or mixtures in a tank includes a pressurized and fluid-free compartment within the tank. The motor driving the agitator is housed in the fluid-free compartment. Control apparatus senses fluid levels and, in conjunction with a compressed gas source, maintains the compartment fluid-free. Additionally, when the fluid level in the enclosure drops to a predetermined minimum, the speed of the agitator may be slowed.
    Type: Application
    Filed: March 18, 2004
    Publication date: September 22, 2005
    Applicant: National-Oilwell, L.P.
    Inventors: Michael Morgenthaler, Federico Alberto Mezzatesta