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:
Jul. 16, 2019
Filed:
Aug. 26, 2015
Sartorius Stedim Biotech Gmbh, Goettingen, DE;
Dieter Armgart, Moringen, DE;
Dirk Leiser, Braunschweig, DE;
Vanessa Rakebrandt, Adelebsen, DE;
Juergen Van Den Boogaard, Dransfeld, DE;
Satorius Stedim Biotech Gmbh, , DE;
Abstract
A method for carrying out an integrity test on a filter element includes filling a fluid into at least one vessel (), in which a filter element (F) to be tested is arranged. The method proceeds by setting the pressure of the fluid in the vessel () to a predetermined test pressure, and maintaining the test pressure in the vessel () with controlled replenishment of fluid into the vessel () and/or a controlled change in internal volume of the vessel (). The method continues by determining an integrity characteristic variable for the filter element (F) in a manner dependent on the controlled replenishment of fluid into the vessel () and/or dependent on the controlled change in internal volume of the vessel () before attaining a substantially continuous volume flow of fluid for maintaining the specific test pressure in the vessel ().