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:
Feb. 10, 2004
Filed:
Jul. 23, 2002
Applicant:
Inventors:
Bruno Espinosa, Genas, FR;
Thomas Bier, Freiberg, DE;
Assignee:
LafargeSaluminates, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 7/32 ;
U.S. Cl.
CPC ...
C04B 7/32 ;
Abstract
The concentration d3 is alumina AL O , —A—, and the concentration d4 in lime CaO, —C—, in the initial mixture are such that d3/d4 ranges between 1.15 and 1.40. Grinding produces a cement with a size distribution as represented in a Rosin Rammler diagram has a gradient ranging between 0.75 and 0.90.