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. 22, 1998
Filed:
Jul. 18, 1997
Applicant:
Inventor:
Christopher G Paul, Fairbanks, AK (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
210183 ; 210184 ; 210186 ; 210187 ; 2101951 ; 210196 ; 210197 ; 210223 ; 210295 ; 210299 ; 210312 ; 210313 ; 2103601 ; 2105321 ;
Abstract
A waste-oil cleaning apparatus includes a processing tank for holding waste-oil, and arranged such that non-oil liquids in the waste-oil settle in the base of the tank. A conduit and valve arrangement is provided for withdrawing the settled non-oil liquids from the base of the tank. The apparatus also incorporates an oil cleaning unit including a pump, a mesh filter and a centrifuge. Waste oil in the tank is cleaned by pumping oil out of the tank and passing the oil sequentially through the mesh filter and the centrifuge after the settled non-oil liquids are withdrawn from the base of the tank.