Patents by Inventor Roger M. Rat

Roger M. Rat 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 and installation for concentrating dilute solutions of corrosive products
    Patent number: 3970511
    Abstract: Dilute solutions of corrosive products, such as sulphuric or phosphoric acid, are concentrated by pre-concentrating the dilute solution and then introducing the pre-concentrated solution into a tunnel in which it flows in a thin layer over successive cascades while being heated, preferably by indirect radiant heating. An installation for carrying out the process is also described.
    Type: Grant
    Filed: December 18, 1973
    Date of Patent: July 20, 1976
    Assignee: Societe Nationale des Poudres et Expolsifs, Antar Petroles de l'Atlantique: Antargaz
    Inventors: Roger M. Rat, Francois A. Pollozec, Jean J. Patouillet