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:
Aug. 10, 2010
Filed:
Apr. 27, 2006
Applicants:
Michael Brüssermann, Münster, DE;
Josef Dühnen, Bochum, DE;
Stefan Riese, Münster, DE;
Inventors:
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 15/08 (2006.01);
U.S. Cl.
CPC ...
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.