Patent · US Active

System and method for in-process integrity test of a filter

US7770434B2 · kind B2 · utility

8Cited by

10References

13Claims

0Family size

Assignee

General Electric Company · US

Inventors

Michael Brussermann · Munster, DE
Josef Dühnen · Bochum, DE
Stefan Riese · Munster, DE

Key dates

Filing date	Apr 27, 2006
Grant date	Aug 10, 2010
Priority date	—
Expiry date	Jan 24, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01N2015/084
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a method for in-process integrity test of a filter. The method may comprise the steps of: coupling a gas source to an input side of a filter without removing the filter from a dispenser system, the gas source supplying a gas and controlling a pressure of the gas; coupling a tube to an output side of the filter, the tube being filled with a liquid; increasing the pressure while monitoring the tube, with a light beam, for a displacement of the liquid by one or more gas bubbles; and determining a value of the pressure at which the displacement of the liquid is detected.

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