Patents by Inventor Pierre Dessenoix

Pierre Dessenoix 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).

  • Assembly for drawing off a liquid by means of a gas under pressure
    Patent number: 4450853
    Abstract: The invention relates to an assembly for drawing off a liquid by means of a gas under pressure. A head comprises a central sliding tube, controlled by a cam, and a ring defining, due to an O-ring, a tight annular chamber when the tube is raised. A plunger tube is surrounded by a sleeve which raises the valve after the end of the central sliding tube has been brought into tight abutment on a flexible sleeve.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: May 29, 1984
    Inventors: Robert Dessenoix, Pierre Dessenoix