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. 08, 1976
Filed:
Jul. 26, 1974
Applicant:
Inventors:
James K Kindig, Arvada, CO (US);
Ronald L Turner, Lakewood, CO (US);
Assignee:
Hazen Research, Inc., Golden, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
44 / ; 44-6 ;
Abstract
Coal particles are made resistant to spontaneous combustion by coating them with silicon dioxide by a vapor deposition process in which the particles in a coating chamber are contacted at a temperature that promotes the deposition on the particles of the reaction products between silicon tetrachloride vapor and water, the coating step followed by elevating the chamber temperature to drive off water vapor and hydrochloric acid.