Patents by Inventor Didier M. Haegel

Didier M. Haegel 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).

  • Process for physico-chemical treatment of water and installation for embodiment of this process
    Patent number: 6485652
    Abstract: The invention concerns a method for the physico-chemical treatment of water characterized in that it comprises at least a step consisting in causing the water to be treated in at least one settler providing non-thickened sludge and in at least one settler-thickener treating the sludge from the two settlers and part of the water to be treated. The invention also concerns a plant for implementing said method comprising means for supplying the water to be treated (6), at least a settler providing non-thickened sludge (2), at least a settler-thickener (5, 5a), means for conveying (7) at least part of the non-thickened sludge coming from the settler providing non-thickened sludge (2) to the settler-thickener (5, 5a), means for evacuating (9, 9a) treated water coming from said settler providing non-thickened sludge (2) and from said settler-thickener (5, 5a) and means for evacuating (8) the thickened sludge coming from said settler-thickener.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: November 26, 2002
    Inventors: Nicolas M. Le Poder, Didier M. Haegel