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:
Jan. 29, 2013
Filed:
Aug. 25, 2010
John B. Stetson, New Hope, PA (US);
Jonathan Mercurio, Moorestown, NJ (US);
Alan Rosenwinkel, Haddonfield, NJ (US);
Peter V. Bedworth, Palo Alto, CA (US);
John B. Stetson, New Hope, PA (US);
Jonathan Mercurio, Moorestown, NJ (US);
Alan Rosenwinkel, Haddonfield, NJ (US);
Peter V. Bedworth, Palo Alto, CA (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A separation arrangement isolates chlorine, sodium and possibly other ions from water. The ion-laden water is applied to at least one graphene sheet perforated with apertures dimensioned to pass water molecules and to not pass the smallest relevant ion. The deionized water flowing through the perforated graphene sheet is collected. The ions which are not passed can be purged. In another embodiment, the ion-laden water is applied to a first graphene sheet perforated with apertures dimensioned to block chlorine ions and through a second graphene sheet perforated with apertures dimensioned to block sodium ions. The concentrated chlorine and sodium ions accumulating at the first and second perforated graphene sheets can be separately harvested.