Patent · US Active

Method and apparatus for carrying out integrity tests of a non-wetted filter element

US9072996B2 · kind B2 · utility

7Cited by

12References

8Claims

0Family size

Assignee

Sartorius Stedim Biotech GmbH · DE

Inventors

Maik Jornitz · Manorville, US
Jens Meyer · Dresden, DE

Key dates

Filing date	Oct 21, 2009
Grant date	Jul 7, 2015
Priority date	—
Expiry date	Jul 24, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01N2015/084
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method and an apparatus are provided for carrying out integrity tests of at least one filter element, arranged within a filter housing, with porous filter materials. Sensors are provided for measuring the sound generated by a test fluid when it flows through the filter element. The method includes applying a test fluid to a first side of the filter materials of the filter element while maintaining a constant fluid pressure, measuring the body-borne sound and/or the vibrations caused by test fluid flowing through the filter materials by sensors, and comparing the body-borne sound and/or the vibrations with the body-borne sound and/or the vibrations of an integral, identical filter element, measured under identical conditions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.