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:
Mar. 21, 1995
Filed:
May. 27, 1993
Applicant:
Inventors:
Hwa-Chi Wang, Downers Grove, IL (US);
Richard J Udischas, Chicago, IL (US);
Benjamin Jurcik, Willowbrook, IL (US);
Assignee:
American Air Liquide, Walnut Creek, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ; B08B / ;
U.S. Cl.
CPC ...
137 15 ; 1341 / ; 137240 ; 137888 ; 222148 ;
Abstract
A device and a method for its use for the removal of contaminants from a gas cylinder valve assembly. The valve assembly output is fed to the device which in turn has inlet and outlet connections to receive and to pass purge gas therethrough. The device is sized and positioned so that contaminants can be purged and a vacuum drawn from the gas cylinder valve assembly at the assembly location itself thus increasing the efficiency of contaminant removal.