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:
Feb. 04, 2014
Filed:
Nov. 04, 2009
Applicants:
Oliver Seiferth, Köln-Zündorf, DE;
Gerhard Kudermann, Alfter, DE;
Inventors:
Oliver Seiferth, Köln-Zündorf, DE;
Gerhard Kudermann, Alfter, DE;
Assignee:
Hydro Aluminum Rolled Products GmbH, Grevenbroich, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 175/00 (2006.01); B21B 45/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a method for recovering lubricant or lubricant concentrate from a used mixture containing lubricant, the mixture containing lubricant and which is substantially dewatered is subjected to short path distillation at a temperature of at least 150° C. and a pressure of less than 1.5 mbar, in order to obtain a lubricant concentrate which can be recycled into cooling lubricants and which is free of very finely wear debris, metal soaps and polymers.