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:
Dec. 29, 1981
Filed:
May. 02, 1977
Duane W Gagle, Bartlesville, OK (US);
Homer L Draper, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
Oil floating on the surface of another liquid is contacted with crushed raw oil shale to adsorb the oil onto the shale. A vortex is created in the surface of the liquid, drawing the crude shale with oil adsorbed thereon beneath the surface of the liquid. The invention provides method and apparatus for adsorbing oil on shale, causing the crude shale with oil adsorbed thereon to sink below the surface of the liquid, recovering the crude shale with oil adsorbed thereon from below the liquid surface, treating the crude shale to separate the oil from the shale, and recycling the crushed shale into contact with oil on the liquid surface.