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:
Oct. 26, 1993
Filed:
Jun. 06, 1991
Applicant:
Inventors:
Yao-En Li, Buffalo Grove, IL (US);
John Rizos, Frankfort, IL (US);
Gerhard Kasper, Downers Grove, IL (US);
Assignee:
American Air Liquide, Chicago Research Center, Countryside, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34 22 ; 34 37 ; 34-9 ; 34 69 ;
Abstract
A process for drying a metal surface to enhance the stability of a gas mixture containing one or more gaseous hydrides in low concentration in contact therewith, which comprises: a) purging gas in contact with the metal surface with inert gas to remove the purged gas, b) exposing the metal surface to an amount of a drying agent comprising an effective amount of gaseous hydride of silicon, germanium, tin or lead, and for a time sufficient to dry the metal surface, and c) purging the drying agent using inert gas.