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.

Date of Patent:
Mar. 28, 2017

Filed:

Jan. 15, 2014
Applicant:

Parker-hannifin Corporation, Cleveland, OH (US);

Inventors:

Peter Popoff, Modestso, CA (US);

Walter Stone, Modesto, CA (US);

Assignee:

Parker-Hannifin Corporation, Cleveland, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 36/02 (2006.01); B01D 36/04 (2006.01); F02M 37/22 (2006.01); B01D 36/00 (2006.01); B01D 27/07 (2006.01);
U.S. Cl.
CPC ...
B01D 36/003 (2013.01); B01D 27/07 (2013.01); B01D 36/02 (2013.01); B01D 36/04 (2013.01); F02M 37/221 (2013.01);
Abstract

A filter assembly having a first stage filter that filters particulates from fluid flowing through the filter and a second stage filter downstream of the first stage filter that coalesces water from the fluid. By providing the first stage filter upstream of the second stage filter, particulate filtration capacity and efficiency may be provided while protecting the second stage filter from particulates. Protecting the second stage filter from particulates allows for the life of the second stage filter to be extended while providing efficient emulsion removal in the filter assembly.


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