Patents by Inventor Hubert Leymarie

Hubert Leymarie 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).

  • Retaining device for apparatus having semi-permeable membranes
    Patent number: 4133764
    Abstract: A retaining device for fluid treatment apparatus having a stack of membranes and spacers in which the stack is clamped between two end plates which are provided with a projection or opening and two side plates which are provided with an opening or projection co-operating therewith, movement of the sideplates relative to the end plates, parallel to the end plates, effecting movement together of the end plates due to inclined surfaces on the projections and/or openings.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: January 9, 1979
    Assignee: Rhone-Poulenc Industries
    Inventors: Robert Bardin, Hubert Leymarie