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:
Jan. 17, 1978
Filed:
Dec. 13, 1976
Yahia A Abdul-Rahman, Plano, TX (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
Spherically-shaped rolling solids are separated from irregularly-shaped nonrolling solids on the upper outer surface of a conoidally-shaped rotating table whereon most of the spherically-shaped solids roll from the surface of the table and most of the irregularly-shaped solids move with the table until they are removed off the surface of the table. A mixture of the two types of solids is fed onto the rotating table by a feed system with an inclined spreader chute, which system fluffs the mixture prior to its impacting the table and spreads the solids on the surface area of the table. The action of the spreader plate may be combined with a breaker plate or the rear side of a spiral-like scraper blade. The feed system lessens undesirable impact momentums of the solids. The feed system distributes the solids more uniformly over a greater area of the table, thereby decreasing solids bridging or piling on the table and increasing effective use of the surface area of the table. The feed system allows the solids to flow at angles less than their angle of repose and reduces the vertical space necessary for the feed system. The separating system is especially useful for separating spherically-shaped heat carriers from spent shale solids in an oil shale retorting process.