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:
Oct. 01, 2019
Filed:
Jul. 23, 2015
Applicant:
Bp Corporation North American Inc., Naperville, IL (US);
Inventors:
Anders Bitsch-Larsen, Wheaton, IL (US);
Timothy H. Keyes, Madison, AL (US);
Thomas M. Bartos, Arden, NC (US);
Assignee:
BP Corporation North America Inc., Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 33/067 (2006.01); B01D 33/073 (2006.01); B01D 33/09 (2006.01); B01D 33/80 (2006.01);
U.S. Cl.
CPC ...
B01D 33/067 (2013.01); B01D 33/073 (2013.01); B01D 33/09 (2013.01); B01D 33/801 (2013.01); B01D 2201/347 (2013.01);
Abstract
A rotary pressure filter apparatus, a sealing device for use with the rotary pressure filter apparatus, and a process of using the apparatus. The rotary pressure filter apparatus is designed to treat a solid-liquid mixture under pressure in successive work zones. A rotary drum moves compartments containing the solid-liquid mixture through the successive zones. The zones are separated by a sealing member, which is designed to reduce pressure fluctuations as the compartments enter a successive zone.