The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 1978
Filed:
Sep. 09, 1976
Pierre Albert Treille, Saint-Cloud, FR;
Vincent Dassonville, Charenton, FR;
Maurice Gabriel Bonnemay, Boulogne, FR;
Jean Paul Royon, La Varenne-St-Hilaire, FR;
Michel Marc Levart, Issy-les-Moulineaux, FR;
Henri Pierre Gaessler, Aubervilliers, FR;
Yves Robert Richard, Marly-le-Roi, FR;
Degremont, Rueil-Malmaison, FR;
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.