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.

Date of Patent:
Oct. 22, 2013

Filed:

Sep. 25, 2007
Applicants:

Alain Jacquet, Saint Didier de Formans, FR;

Laurence Martin, L'Isle d'Abeau, FR;

Stephane Brocas, Montpellier, FR;

Hakimi Yahiaoui, Saint Priest, FR;

Inventors:

Alain Jacquet, Saint Didier de Formans, FR;

Laurence Martin, L'Isle d'Abeau, FR;

Stephane Brocas, Montpellier, FR;

Hakimi Yahiaoui, Saint Priest, FR;

Assignee:

Lafarge, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An embodiment of the invention provides a production process of sand including the extraction of sand from a quarry; the periodic, on-line and automated withdrawal of a sample of sand; and the automated measurement of the methylene blue value on the sample of sand. Another embodiment of the invention provides a production line of sand including means of extraction of sand from a quarry; periodic and automated means of withdrawal of a sample of sand; and automated means of measuring the methylene blue value for the sample of sand.


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