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Leak test device attached to the flexible wall of the object to be tested

A technique for leak testing and measured objects, applied in the field of leak testing devices

Active Publication Date: 2018-06-29
INFICON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Considering that even small leaks in the test object can cause damage to the packaged product, the leak testing system must be able to detect small leaks reliably

Method used

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  • Leak test device attached to the flexible wall of the object to be tested
  • Leak test device attached to the flexible wall of the object to be tested

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] The leak test device comprises a foil 4, a mucous membrane 3 and a reinforcing element 5, thereby forming a test leak. The foil 4 and the mucous membrane 3 are circular with equal outer diameters. The foil 4 is placed over the mucosa 3 and is fixedly attached to the edge portion of the mucosa 3 . The foil 4 is not connected to the mucosa 3 in an area concentric with the center of the foil 4 and surrounding the mucosa 3 , forming a cavity 1 with the mucosa 3 . In the center of the foil 4 there is a leakage point 2, which is a small hole with a diameter of less than 1 mm. The leak point 2 provides a passage leading to the cavity 1 , so that the test gas in the cavity 1 can leak out through the leak point 2 and can be detected by the leak testing system. In the region of the outer edge of the cavity 1 , the reinforcing element 5 is placed therein in the form of a ring separating the foil 4 and the mucosa 3 , thereby creating a stable cavity 1 . This reduces the risk of ...

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PUM

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Abstract

An improved leak test device attached to a flexible wall of a test object has a foil (4) defining a cavity (1) outside the test object and having a leak Point (2), the foil (4) is used to be attached to the measured object.

Description

technical field [0001] The present invention relates to a leakage testing device attached to the outside of a measured object. Background technique [0002] Test leaks are used to detect and verify leak test systems used to detect the air tightness of the object under test. Typically, the object to be tested is food packaging, pharmaceutical packaging or packaging of sterile objects in the medical field. Leak testing is used to detect leaks from packaging that could cause damage to the packaged product. The object being tested for airtightness has thin walls that form the packaging of the product. The leak test is carried out in an automated manner by using a leak test system. Considering that even small leaks in the object under test can cause damage to the packaged product, the leak testing system must be able to reliably detect small leaks. The leak test system shall be checked regularly and calibrated if necessary. For this purpose, the leak test is carried out on t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/02G01M3/22G01M3/00
CPCG01M3/027G01M3/227G01M3/007G01M3/3218
Inventor 德克尔·西尔维奥
Owner INFICON INC