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:
Apr. 03, 1990
Filed:
Feb. 22, 1989
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 38 ;
Abstract
A method and an apparatus for evaluating the gas purifying ability of a gas purifier are described. The method for evaluating the gas purifying ability comprises the steps of sealing the gas purifier while reducing the inner gas pressure of the gas purifier, releasing a desirable impurity gas shut within a tank at a higher inner gas pressure than the inner gas pressure of the gas purifier, to the sealed gas purifier, and measuring the gas releasing ability of the impurity gas to the gas purifier.