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:
Aug. 28, 2012
Filed:
Oct. 30, 2007
Applicants:
Colin Paxton, Gillingham, GB;
Michael Weichinger, Vienna, AT;
Inventors:
Colin Paxton, Gillingham, GB;
Michael Weichinger, Vienna, AT;
Assignee:
Lafarge, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 7/43 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the production of cement which includes the calcination of calcium carbonate-containing raw meal in a calciner heated by combustion of a carbon-containing fuel with a gas including oxygen and from 0 to 80% by volume of carbon dioxide, and substantially free of nitrogen, and isolating the gas produced by combustion and calcination in the calciner.