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. 27, 2015
Filed:
Oct. 30, 2007
Applicants:
Rolf Berndt, Dietzenbach, DE;
Jochen Ruth, Buedingen, DE;
Inventors:
Rolf Berndt, Dietzenbach, DE;
Jochen Ruth, Buedingen, DE;
Assignee:
Pall Corporation, Port Washington, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 37/00 (2006.01); C09K 3/14 (2006.01); B01D 36/04 (2006.01); B01D 21/00 (2006.01); C10M 175/00 (2006.01); B24B 57/00 (2006.01);
U.S. Cl.
CPC ...
C10M 175/0058 (2013.01); B24B 57/00 (2013.01); C10M 2201/061 (2013.01); C10M 2209/104 (2013.01); C10N 2270/00 (2013.01);
Abstract
A method for treating spent abrasive slurry obtained from cutting a body of a substrate material into wafer-like slices, the slurry comprising a lubricant fluid, unspent abrasive particles and fines, is disclosed, method comprising separating the spent slurry in a first sedimentation step into a solids concentrate comprising unspent abrasive particles and a solids depleted slurry; and subsequently separating the solids depleted slurry by cross-flow filtration into a fines containing fraction and a solids and fines depleted regenerated lubricant fluid.