Patent · US Active

Sniffer leak detector

US8176770B2 · kind B2 · utility

6Cited by

7References

16Claims

0Family size

Assignee

INFICON AG · LI

Inventor

Daniel Wetzig · Cologne, DE

Key dates

Filing date	Oct 26, 2007
Grant date	May 15, 2012
Priority date	—
Expiry date	Sep 4, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01M3/205
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sniffing leak detector which comprises a mass spectrometer, a turbomolecular pump and a forevacuum pump. In case that the sniffing hose with the hand-operated sniffing probe becomes detached from the main device, atmospheric pressure would pass into the gas inlet conduit and disrupt the high vacuum in the mass spectrometer. In order to protect the mass spectrometer and the vacuum pump apparatus, a flow restrictor with an upstream filter is arranged in the gas inlet conduit.

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