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. 21, 2025
Filed:
Jan. 05, 2022
Gcp Applied Technologies Inc., Alpharetta, GA (US);
Elise Berodier, Lausanne, CH;
Nathan A. Tregger, Northborough, MA (US);
Josephine H. Cheung, Lexington, MA (US);
David F. Myers, Somerville, MA (US);
Li Zhang, North Hills, CA (US);
Dorota Kazmierczak, Acton, MA (US);
Lawrence R. Roberts, Acton, MA (US);
Denise A. Silva, Los Alamitos, CA (US);
Richard Sibbick, Northborough, MA (US);
Jeffrey Thomas, Winchester, MA (US);
Mark F. Roberts, North Andover, MA (US);
Riccardo Stoppa, Milan, IT;
Elizabeth Burns, Windham, NH (US);
Abstract
The present invention provides a method and system for manufacturing cement wherein ground particles of cement and calcium sulfate are subjected to infrared sensors, laser sensors, or both, so that emanated, irradiated, transmitted, and/or absorbed energy having wavelengths principally within the range of 700 nanometers to 1 millimeter can be monitored and compared to stored data previously obtained from ground cement and sulfate particles and preferably correlated with stored strength, calorimetric, or other data values, such that adjustments can be made to the mill processing conditions, such as the form or amounts of calcium sulfate (e.g., gypsum, plaster, anhydride), or cement additive levels. The strength and other properties of cement can be thus adjusted, and its quality can be more uniform.