Patents by Inventor Paul Dufilho

Paul Dufilho 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: 8695805
    Abstract: The present disclosure is generally directed to vibratory separators that are used for processing drilling fluid, and in particular, vibratory separators that utilize electro-magnetic clamping apparatuses for attaching screen assemblies to a basket assembly. In one exemplary embodiment, an illustrative vibratory separator is disclosed which includes, among other things, a basket assembly having at least one screen support, and at least one screen assembly that is adapted to be releasably secured to the at least one screen support. Additionally, the disclosed vibratory separator also includes an electro-magnetic clamp apparatus that is adapted to releasably secure the at least one screen assembly to the at least one screen support when the electro-magnetic clamp apparatus is energized to a magnetized state, and to release the at least one screen assembly from the at least one screen support when the electro-magnetic clamp apparatus is de-energized to an un-magnetized state.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: April 15, 2014
    Assignee: National Oilwell Varco, L.P.
    Inventors: Paul Dufilho, Eric Scott
  • Patent number: 8312995
    Abstract: Methods for automatically controlling a vibratory separator for processing drilling fluid are disclosed. The methods include introducing material to a vibratory separator, and sensing with a sensor apparatus a state parameter indicative of operation of the vibratory separator and providing a signal indicative of a value of the state parameter to a control apparatus. Then, with the control apparatus, automatically controlling the vibratory separator based on the level of the state parameter.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: November 20, 2012
    Assignee: National Oilwell Varco, L.P.
    Inventors: Paul Dufilho, Eric Scott
  • Publication number: 20100235002
    Abstract: Methods for automatically controlling a vibratory separator for processing drilling fluid are disclosed. The methods include introducing material to a vibratory separator, and sensing with a sensor apparatus a state parameter indicative of operation of the vibratory separator and providing a signal indicative of a value of the state parameter to a control apparatus. Then, with the control apparatus, automatically controlling the vibratory separator based on the level of the state parameter.
    Type: Application
    Filed: May 24, 2010
    Publication date: September 16, 2010
    Inventors: Paul Dufilho, Eric Scott
  • Publication number: 20100181265
    Abstract: A screen assembly for a vibratory separator, the screen assembly vertically-mountable and further including a support, at least two screening faces on the support, said at least two screening faces each including screening material through which fluid is flowable from outside the screen assembly into a space within the screen assembly and interiorly of the at least two screening faces, and the support including an exit from which fluid may exit from within the screen assembly; shakers with at least one such screen assembly; and methods of using such a screen assembly in a vibratory separator. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 CFR 1.72(b).
    Type: Application
    Filed: January 20, 2009
    Publication date: July 22, 2010
    Inventors: David L. Schulte, JR., Paul Dufilho, Thomas Larson