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. 27, 2010
Filed:
Apr. 02, 2004
Chester L. Bejtlich, Iii, Reading, MA (US);
Turgut Sarioglu, Waltham, MA (US);
Gastón DE Los Reyes, Boston, MA (US);
Wisam Yacteen, Waltham, MA (US);
Chester L. Bejtlich, III, Reading, MA (US);
Turgut Sarioglu, Waltham, MA (US);
Gastón de los Reyes, Boston, MA (US);
Wisam Yacteen, Waltham, MA (US);
Millipore Corporation, Billerica, MA (US);
Abstract
An electrodeionization device for large-volume ultra-pure deionization of water is disclosed. The device comprises a plurality of alternating ion depletion and concentration compartments, interposed between an anode assembly and a cathode assembly, through which flows either a product stream or a waste stream. Each compartment contains several fluid-accessible channels packed with an appropriate ion-exchange medium. The flow of the waste and product streams among the compartments is 'parallel' (i.e., contemporaneous). The flow of a stream through the compartments—i.e., through the channels therein—is 'serial' (i.e., sequential). In an embodiment, electrical current is generated through the compartments using segmented electrodes—either in the anode and/or the cathode assembly—that are connected to a single multiple-outlet power source. The device is fast, efficient, robust, and its configuration is comparatively easy to scale upwards to accommodate larger water processing volumes.