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:
Apr. 10, 2018
Filed:
Dec. 08, 2011
Applicants:
Beena Rai, Pune, IN;
Abhinandan Chiney, Pune, IN;
Vivek Ganvir, Pune, IN;
Pradip, Pune, IN;
Inventors:
Assignee:
TATA CONSULTANCY SERVICES LIMITED, Maharashtra, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C 23/00 (2006.01); B02C 23/06 (2006.01); C09K 5/10 (2006.01); B02C 23/36 (2006.01); B02C 25/00 (2006.01);
U.S. Cl.
CPC ...
B02C 23/06 (2013.01); B02C 23/36 (2013.01); B02C 25/00 (2013.01); C09K 5/10 (2013.01);
Abstract
According to an implementation of the present subject matter, a method for producing stable nanofluids is described. The method includes mixing of a base fluid with a dispersant and a metal oxide powder to form a primary mixture. The base fluid is a heat transfer fluid and the metal oxide powder includes particles of size greater than 100 nm. The method further includes grinding the primary mixture to obtain a concentrated nanoparticle suspension where the dispersant is added to the primary mixture during the grinding after every pre-determined time period.