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.

Date of Patent:
Jun. 09, 2020

Filed:

Dec. 14, 2016
Applicant:

Camfil Ab, Stockholm, SE;

Inventors:

Axel Mahler, Großensee, DE;

Richard Addington, Kunshan Jiangsu, CN;

Kenny Hedlund, Trosa, SE;

Assignee:

Camfil AB, Stockholm, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 1/22 (2006.01); G01M 3/04 (2006.01); B01D 46/00 (2006.01);
U.S. Cl.
CPC ...
G01N 1/2247 (2013.01); G01M 3/04 (2013.01); B01D 46/0086 (2013.01); B01D 2273/18 (2013.01); G01N 2001/2285 (2013.01); G01N 2001/2291 (2013.01);
Abstract

A test probe for filter leakage detection. The test probe () has an elongated housing () with a longitudinal inlet portion for admitting gas into a first chamber of the housing through an inlet of the inlet portion, and an outlet portion for letting gas out of a second chamber of the housing through an outlet of the outlet portion. Further, the test probe has an intermediate element comprising a throttling portion. The intermediate element is arranged between the inlet portion and the outlet portion, wherein the first and second chambers are fluidly interconnected via the throttling portion, wherein the throttling portion is elongated and extends longitudinally of the housing, wherein the throttling portion is arranged to cause a smaller vacuum upstream of the throttling portion than downstream of the throttling portion when gas is sucked through the test probe.


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