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:
Sep. 20, 2011

Filed:

Nov. 20, 2009
Applicants:

David G. Hammond, Fairfax, VA (US);

David C. Long, Ashburn, VA (US);

Paul K. Ladwig, Centreville, VA (US);

Min Chang, McLean, VA (US);

Inventors:

David G. Hammond, Fairfax, VA (US);

David C. Long, Ashburn, VA (US);

Paul K. Ladwig, Centreville, VA (US);

Min Chang, McLean, VA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 27/00 (2006.01); B01D 33/00 (2006.01); B01D 29/07 (2006.01); B01D 61/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A filter system for use in a three-phase slurry reactor is provided. The filter system comprises one or more bundles of a plurality of filter elements for separating liquid from a mixture of liquid and solids contained in the reactor. Each filter bundle is connected to a product transfer conduit transporting separated liquid to a location outside of and downstream from the reactor. The transfer conduit is provided with means for backflushing the filter bundle and guard filter means.


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