Patents by Inventor Teddy Durieux

Teddy Durieux 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 the purification of olefine oxides
    Patent number: 4304639
    Abstract: A process for the purification of olefine oxides by subjecting a mixture containing the olefine oxides to distillation in a distillation column in the presence of a small amount of water in order to obtain olefine oxide as the distillate. A fraction of the down-flow liquid is withdrawn from the column and the withdrawn fraction is subjected to decantation, so as to separate off an aqueous phase which is discarded, and an organic phase. The organic phase is returned to the column at a point located below the withdrawal point.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: December 8, 1981
    Assignee: Propylox (Societe Anonyme)
    Inventors: Nicolas Hardy, Teddy Durieux
  • Apparatus for measuring out pulverulent materials
    Patent number: 3938712
    Abstract: In apparatus for measuring out pulverulent materials, including a screw rotatably mounted in a barrel having an outlet at one end, the ability of the apparatus to impart a uniform flow rate to materials having poor flow properties is improved by interrupting the thread of the screw between any two circumferentially spaced generatrices of the cylindrical surface thereof and by disposing scraping elements to cooperate with the screw thread.
    Type: Grant
    Filed: March 26, 1974
    Date of Patent: February 17, 1976
    Assignee: Solvay & Cie
    Inventor: Teddy Durieux