Patents by Inventor Andre G. M. A. Bizard

Andre G. M. A. Bizard 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).

  • Cleaning of heat exchangers composed of tubes
    Patent number: 4283807
    Abstract: In a heat exchanger comprising tubes to be cleaned by the injection of compressible balls into the fluid upstream of the tubes, grids are provided downstream of the tubes to enable the balls to be separated from the flow of fluid and reinjected upstream. At least certain of the grids are fixed, their cleaning being carried out by movable combs, the teeth of which clean out the spaces between the bars of the grids.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: August 18, 1981
    Assignee: Technos
    Inventor: Andre G. M. A. Bizard