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:
Nov. 10, 1998
Filed:
Mar. 01, 1996
Applicant:
Inventors:
Giovanni Carrea, Colorado Springs, CO (US);
Brian D Warrick, Colorado Springs, CO (US);
Lewis J Wickman, Colorado Springs, CO (US);
Assignee:
D.D.I. Ltd., British West Indies, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
95115 ; 95122 ; 95138 ; 95139 ; 95140 ; 96130 ; 96144 ;
Abstract
A method and apparatus are disclosed showing a system for continuous purification of bulk source specialty gases to less than 10 part per billion levels. Corrosive and non-corrosive specialty gases are purified using this system. Depending on whether corrosive or non-corrosive gases are being purified and the contaminants of concern, the purification beds contain an absorber and/or getter. A dual bed system allows one bed to purify at ambient temperatures while a second bed undergoes regeneration, providing continuous purification for a bulk source specialty gas.