Patent · US Active

Leak detection on a flexible test piece in a film chamber

US10852212B2 · kind B2 · utility

1Cited by

3References

6Claims

0Family size

Assignee

INFICON AG · LI

Inventors

Daniel Wetzig · Cologne, DE
Silvio Decker · Cologne, DE
Jochen Puchalla-König · Cologne, DE

Key dates

Filing date	Jan 30, 2017
Grant date	Dec 1, 2020
Priority date	—
Expiry date	Aug 18, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01M3/38
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a method for leakage detection on at least one flexible test piece in a film chamber, including inserting the at least one test piece into a film chamber, lowering the pressure in the film chamber outside the at least one test piece, and detecting a leakage in the at least one test piece by observing the spatial change of the film of the film chamber. The outer contour of the at least one test piece is transferred to at least one section of the film by the lowering of the pressure in the film chamber. The contour of the film is recorded with an image recording system, and the recorded images of the contour are compared with reference images of said contour in the event of a tight test piece.

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