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:
Oct. 27, 2009
Filed:
Apr. 04, 2007
Lionel Borne, Saint-Louis, FR;
Jean-louis Patedoye, Saint-Louis, FR;
Lionel Borne, Saint-Louis, FR;
Jean-Louis Patedoye, Saint-Louis, FR;
Institut Franco Allemand de Recherches de Saint-Louis, Saint-Louis, FR;
Abstract
The present invention relates to the investigation of particle characteristics, particularly to a device for measuring the apparent density distribution of a set of particles composed of several subsets of particles with different apparent densities and able to implement a flotation process to measure this distribution and comprising a flotation container, a stirrer and a system for measuring the density of the liquids, characterized in that the inside wall of the container has at least a first part in the shape of an inverted cone with axis Y whose height is 1.5 to 3 times its maximum diameter, and in that it has means for extracting liquid communicating with said first part at the vertex of the inverted cone, said means having a tube communicating with said first part at the tip of the inverted cone of which the first axis makes an angle of between π/2 and 3π/2 radians with the second axis.