Patent · US Active

Leak detector

US9632067B2 · kind B2 · utility

3Cited by

11References

20Claims

0Family size

Assignee

INFICON AG · LI

Inventors

Daniel Wetzig · Cologne, DE
Scott W. Dalton · Farmington, US
Daniel Hoffmann · Bonn, DE
Walwyn Jackson, Jr. · Syracuse, US

Key dates

Filing date	Aug 24, 2015
Grant date	Apr 25, 2017
Priority date	—
Expiry date	Sep 4, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/0032
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a leak detector comprising a first sensor for detecting a gas component (helium) in a gas taken in. Because the sensor is susceptible to saturation or contamination, a second sensor is provided. The sensor is a thermal conductivity sensor. The thermal conductivity sensor has a lower detection sensitivity, yet, at a high concentration of the gas component, it does not risk being contaminated. The two sensors together allow for a large detection range, from extremely sensitive measurements to instances with high concentrations of the gas components as those which can occur with gross leaks.

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