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:
Jul. 16, 2019
Filed:
Jun. 27, 2017
Applicant:
General Electric Company, Schenectady, NY (US);
Inventor:
Paul Gregory Roth, Cincinnati, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03C 1/32 (2006.01); B03C 1/033 (2006.01); B22F 1/00 (2006.01);
U.S. Cl.
CPC ...
B03C 1/32 (2013.01); B03C 1/0332 (2013.01); B03C 1/0335 (2013.01); B22F 1/0081 (2013.01); B03C 2201/18 (2013.01); B03C 2201/20 (2013.01); B22F 2202/05 (2013.01);
Abstract
Methods for separating particles in a ferrofluid, along with apparatus for performing the same, are provided. The method may include introducing the ferrofluid through a separation tube; applying a magnetic field to the separation tube such that a fluid constriction is created within the tube that leads to a density gradient in the fluid with a maximum value (d) at some region along the tube; and introducing a plurality of particles into the ferrofluid within the separation tube such that particles having densities greater than dflow through the ferrofluid.