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:
Mar. 18, 2014
Filed:
Nov. 06, 2008
Applicants:
Gregory Straeffer, North Chelmsford, MA (US);
Kevin Rautio, Manchester-by-the-Sea, MA (US);
Inventors:
Gregory Straeffer, North Chelmsford, MA (US);
Kevin Rautio, Manchester-by-the-Sea, MA (US);
Assignee:
EMD Millipore Corporation, Billerica, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 63/12 (2006.01); B01D 61/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filtration apparatus is provided comprising a housing having an inlet and an outlet and a plurality of spirally wound filtration cartridges. The filtration cartridges include two filter layers, a feed spacer layer and a permeate spacer layer. Seals are provided to prevent admixtures of feed and permeate and to permit recovery of permeate.