Method and device for testing the sealing tightness of...

Details Method and device for testing the sealing tightness of... Method and device for testing the sealing tightness of...

2005-10-12

2010-10-12

Fitzgerald, John (Department: 2856)

Measuring and testing

With fluid pressure

Leakage

Reexamination Certificate

active

07810377

ABSTRACT:
In a linear transport device (30) for tear-off lids (20), the latter are tested for the impermeability of the seal and the foil in a test device (9) that is integrated into the linear transport device. The lid is fixed between a pressure chamber (43) and a measuring chamber (47, 48, 49) in an airtight manner and a test pressure is applied to the lid from the underside. An air-permeable support (47) in the measuring chamber exerts pressure on the upper face of the lid and any increase in air pressure in the measuring chamber caused by a degree of permeability is detected and evaluated by a sensor (55). A burst test can be carried out in the same test device.

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patent: 5668307 (1997-09-01), Wade
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patent: 59-147234 (1984-08-01), None
International Search Report of PCT/CH2005/000597.

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