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:
Sep. 12, 1978
Filed:
Aug. 19, 1975
Pierre Albert Treille, Saint Cloud, FR;
Jacques Claude Moles, Nanterre, FR;
Maurice Gabriel Bonnemay, Boulogne, FR;
Jean Paul Royon, La Varenne-St. Hilaire, FR;
Michel Marc Levart, Issay-les-Moulineaux, FR;
Henri Pierre Gaessler, Aubervilliers, FR;
Yves Robert Richard, Marly-le-Roi, FR;
Degremont, Rueil-Malmaison, FR;
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.