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. 06, 1981
Filed:
Sep. 19, 1977
Applicant:
Inventors:
Assignee:
Swiss Aluminium Ltd., Chippis, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210737 ; 208179 ; 210702 ;
Abstract
Lubrication oils used in rolling strip and foil in the light metal industing are contaminated with fine metallic particles during rolling. The process described here allows these oils to be cleaned either continuously or in a batch process by adding a strongly alkaline solution to the warm contaminated oil whereby these fine particles coagulate and can be separated out by means of centrifuging or filtering.