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:
Jun. 14, 2022
Filed:
Apr. 27, 2021
Applicant:
E. Dillon & Company, Swords Creek, VA (US);
Inventors:
Mike Miller, Honaker, VA (US);
Thomas Harmon Harris, Rosedale, VA (US);
Assignee:
E. Dillon & Company, Swords Creek, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21F 5/12 (2006.01); C09K 3/22 (2006.01);
U.S. Cl.
CPC ...
E21F 5/12 (2013.01); C09K 3/22 (2013.01);
Abstract
A mine safety dust exhibiting improved dispersion in water. The rock dust includes dolomitic limestone particles which, when mixed at the mine site to form a slurry, stay in suspension during intermittent operation of spray machinery and with a reduced need for continuous mixing. The rock dust composition includes an inorganic salt that acts as a dispersant to improve dispersion of the rock dust in water and further acts as a deflocculant to keep the dust particles in suspension in the resultant slurry.