Patents by Inventor Bernard Ancelle

Bernard Ancelle 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).

  • Equipment and process for the treatment of swimming pool water with a semi-permeable membrane
    Patent number: 4592841
    Abstract: In the treatment of the swimming pool water, the water is continuously withdrawn from the pool and brought into contact with semi-permeable membranes of a separating apparatus. The fraction of the water which has passed through the membranes is returned to the pool.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: June 3, 1986
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Bernard Ancelle, Serge Lambert
  • Treatment of pulp mill effluents
    Patent number: 4155845
    Abstract: Pulp mill effluents, particularly soda-containing treatment liquors, are subjected to a separatory treatment comprising a pre-treatment with flocculating agent in a sub-critical amount incapable of effecting flocculation, followed by an ultrafiltration of the pre-treated effluent.
    Type: Grant
    Filed: May 10, 1977
    Date of Patent: May 22, 1979
    Assignee: Rhone-Poulenc Industries
    Inventors: Bernard Ancelle, Serge Lambert