Measuring and testing – Specific gravity or density of liquid or solid
Reexamination Certificate
2007-04-04
2009-10-27
Williams, Hezron (Department: 2856)
Measuring and testing
Specific gravity or density of liquid or solid
Reexamination Certificate
active
07607341
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.
REFERENCES:
patent: 1344370 (1920-06-01), Allen
patent: 1730221 (1929-10-01), Larose
patent: 2825698 (1958-03-01), Taylor et al.
patent: 3244010 (1966-04-01), Martin
patent: 3514996 (1970-06-01), Coustau
patent: 3616925 (1971-11-01), Tolman
patent: 3661015 (1972-05-01), Paul
patent: 4290300 (1981-09-01), Carver
patent: 4391141 (1983-07-01), Petersen
patent: 6866778 (2005-03-01), Kerschenmeyer et al.
patent: 820 981 (1949-07-01), None
patent: 1631359 (1989-02-01), None
A.R. Lang, “Dilatation, density and nitrogen content in type 1a diamonds: previous work and proposed experiments,” Journal of Physics D: Applied Physics, Dec. 12, 1993, pp. 2239-2244 (XP000421207).
Borne Lionel
Patedoye Jean-Louis
Gissel Gunnar J
Institut Franco Allemand de Recherches de Saint-Louis
Oliff & Berridg,e PLC
Williams Hezron
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