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:
Sep. 14, 2010
Filed:
Nov. 16, 2002
William W. Carson, Hopkinton, MA (US);
Oleg Grebenyuk, Woburn, MA (US);
Vladimir Grebenyuk, Woburn, MA (US);
Keith J. Sims, Wayland, MA (US);
R. Hilda Zanapalidou, Winchester, MA (US);
Bernard R. Mack, Natick, MA (US);
Richard G. Parent, Waltham, MA (US);
William W. Carson, Hopkinton, MA (US);
Oleg Grebenyuk, Woburn, MA (US);
Vladimir Grebenyuk, Woburn, MA (US);
Keith J. Sims, Wayland, MA (US);
R. Hilda Zanapalidou, Winchester, MA (US);
Bernard R. Mack, Natick, MA (US);
Richard G. Parent, Waltham, MA (US);
Ionics, Incorporated, Watertown, MA (US);
Abstract
A spacer element () is disclosed having an integral screen for use in filled cell electrodialysis. The spacer () has a continuous portion () impermeable to flow and a screen () which spans a centrally-located flow treatment region that contains active treatment material, such as ion exchange beads. The screen () may perform a structural function, allowing operation at elevated pressure, and may also define a minimum gap between adjacent membranes and enhance mixing along the flow path and at cell boundaries. The spacer element () may be configured to enhance hydraulic filling of the cells, and cell architecture is readily implemented in a wide range of useful flow path geometries utilizing the screen spacer element ().