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:
Dec. 01, 2009
Filed:
Dec. 01, 2000
Applicant:
Juzer Jangbarwala, Chino-Hill, CA (US);
Inventor:
Juzer Jangbarwala, Chino-Hill, CA (US);
Assignee:
Edwards Vacuum, Inc., Tewksbury, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/42 (2006.01); C01B 7/19 (2006.01); B01D 53/14 (2006.01); B01J 49/00 (2006.01); B01J 47/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for removing fluorine gas from a selected environment comprises contacting the fluorine gas with water to generate a solution of hydrofluoric acid and contacting the solution of hydrofluoric acid with an ion exchange resin having an active state operative to exchange selected ions therein for fluoride ions in the solution. The apparatus () may include a dual resin setup () such that one of the ion-exchange resin can be in the service cycle while the other of the ion-exchange resins undergoes the regeneration and rinse/refill cycles.