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:
Apr. 06, 2021
Filed:
Apr. 30, 2018
Roman Cement, Llc, Salt Lake City, UT (US);
John M. Guynn, Salt Lake City, UT (US);
ROMAN CEMENT, LLC, Salt Lake City, UT (US);
Abstract
A non-conforming fly ash is converted into conforming fly ash by: (1) obtaining an initial fly ash with at least one non-conforming characteristic selected from excess carbon or low reactivity index as defined by ASTM C-618 and having a D10, D50 and D90; (2) classifying the initial fly ash using one or more air classifiers to produce at least two separate fly ash streams, including fine fly ash and coarse fly ash; and (3) collecting the fine fly ash and the coarse fly ash, (4) the fine fly ash having a D90 approximately equal to or less than the D50 of the initial fly ash and a conforming carbon content and a conforming reactivity index as defined by ASTM C-618.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile