Patents by Inventor Henri Pierre Gaessler

Henri Pierre Gaessler 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).

  • Patent number: 4113596
    Abstract: The invention relates to a method for the measurement of the movement of colloidal particles in suspensions or solutions. The apparatus used in this method comprises an electrophoresis tank equipped with two electrodes between which an electrical field can be applied.A beam of radiation produced at the outside of the tank having a thickness of not more than 1000.mu. as viewed in the direction of the lines of force of the electrical field set up between the electrodes is directed so as to skim the electrode away from which the particles move under the effect of the electrical field.In order to determine the mobility of the particles the optical density of the liquid is measured a first time without applying the electrical field, and a second time after having applied the field during not more than 10 seconds.
    Type: Grant
    Filed: August 19, 1975
    Date of Patent: September 12, 1978
    Assignee: Degremont
    Inventors: Pierre Albert Eugene Treille, Jacques Claude Antoine Moles, Maurice Gabriel Ernst Bonnemay, Jean Paul Royon, Michel Marc Levart, Henri Pierre Gaessler, Yves Robert Richard
  • Patent number: 4070263
    Abstract: The invention relates to an improved method and apparatus for the measurement of the movement of colloidal particles in suspensions or solutions, wherein an electrophoresis tank is equipped with two electrodes and a filtering membrane positioned substantially parallel and equidistant to the electrodes.A flat beam of radiation produced at the outside of the tank having a thickness of not more than 1000 .mu. as viewed in the direction of the lines of force of the electrical field set up between the electrodes is directed so as to skim the side of the membrane from which the particles move under the effect of the electric field.With this improved arrangement the influence of secondary interfering phenomena appearing essentially when measuring the movement of colloidal particles in highly mineralized waste waters, can be eliminated.
    Type: Grant
    Filed: September 9, 1976
    Date of Patent: January 24, 1978
    Assignee: Degremont
    Inventors: Pierre Albert Eugene Treille, Vincent Dassonville, Maurice Gabriel Ernst Bonnemay, Jean Paul Royon, Michel Marc Levart, Henri Pierre Gaessler, Yves Robert Richard