Patents by Inventor Chatelin Roger

Chatelin Roger 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).

  • Apparatus for separating at least two elements contained in a liquid or gaseous fluid by means of an absorbent filtering material
    Patent number: 4971688
    Abstract: The apparatus relates to separation apparatus (1) for separating at least two elements contained in a liquid or gaseous fluid, the apparatus including a separation chamber (60) of adjustable height delimited by a piston (30) slidably mounted in a piston cylinder (2). A variable pressure may be applied to the face (34) of the piston (30) situated outside the chamber (60). The piston cylinder (2) is mounted in a protection cylinder (6) in which a fluid may flow for maintaining a given temperature inside the separation chamber (60).
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: November 20, 1990
    Assignee: Centre Technique Industriel: Institut Textile de France
    Inventors: Combes J. Francois, Chatelin Roger, Wattiez Daniel, Gavet Loues