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:
Jan. 10, 2006
Filed:
Oct. 02, 2003
Applicants:
Ulrich Grummert, Bad Soden-Allendorf, DE;
Ina Pahl, Hannover, DE;
Inventors:
Ulrich Grummert, Bad Soden-Allendorf, DE;
Ina Pahl, Hannover, DE;
Assignee:
Sartorius AG, Goettingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for testing the integrity of filter elements, in which the convective component of the volumetric gas flow rate is determined from the ratio of the volumetric gas flow rates and the ratio of the solubility or diffusion coefficients of two different gases in the wetting liquid of the filter elements or is determined from the ratio of the volumetric gas flow rates and the ratio of the solubility or diffusion coefficients of a test gas in two different wetting liquids.