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. 02, 1979
Filed:
Apr. 03, 1978
Timothy J Anderson, Fairmont, WV (US);
Other;
Abstract
Method for forming coal briquettes from coal particles in the size range of 1/4 to 3/4 inch and containing fines in the range of 20-40% by volume. The coal particles and fines are mixed with sodium silicate and/or potassium silicate as a binder and are compacted into briquettes at a pressure of 100-200 psi, and particularly 140 psi. The resulting briquettes, which are particularly adapted for use as a fuel in home fireplaces, will burn without producing excessive smoke which normally results from burning coal. At the same time, the silicate acts to bond the ash produced during burning such that the burned briquette will maintain its integrity even after it has fully burned and may be removed from a fireplace grate in one piece rather than as loose ash. The briquettes are approximately the size of a wood log in order that they may be conveniently deposited in a fireplace grate.