Patent · US Active

Test probe for a filter

US10677690B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

Camfil AB · SE

Inventors

Axel Mahler · Ahrensburg, DE
Richard Addington · Shanghai, CN
Kenny Hedlund · Trosa, SE

Key dates

Filing date	Dec 14, 2016
Grant date	Jun 9, 2020
Priority date	—
Expiry date	Feb 13, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01N2001/2291
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A test probe for filter leakage detection. The test probe (1) has an elongated housing (5) 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.

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