Patents by Inventor Alain Marsaly

Alain Marsaly 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).

  • Detection of anomalies in gas fluidized bed polymerization
    Patent number: 4858144
    Abstract: A process for detecting anomalies in a fluidized bed, e.g. the incidence of agglomeration in gas-fluidized bed polymerization, comprises sensing and converting into electrical signals the pressure at one level, or the pressure difference between two or more levels in the reactor, processing these signals by computer to produce a pressure spectrum and comparing with a reference spectrum obtained in the absence of anomalies. The device comprises one or more pressure sensors 11,12,13, which measure the pressure at various levels in the reactor 1, and a computer 27.
    Type: Grant
    Filed: February 12, 1987
    Date of Patent: August 15, 1989
    Assignee: BP Chemicals Limited
    Inventors: Alain Marsaly, Andre Martens, Frederic R. M. M. Morterol, Charles Raufast