Method and Apparatus for Testing Tubular Objects
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United States of America Patent
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Issued Date -
Sep 10, 2009
app pub date -
May 10, 2007
filing date -
May 16, 2006
priority date (Note) -
Abandoned
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Abstract
A method for testing tubular objects, in particular paper sleeves in a cylindrical pressure chamber, comprises the following steps: receiving the tubular object to be tested in a pressure chamber, which is comprised of a hollow cylinder with a pressure shell, wherein the pressure shell is supported at the hollow cylinder and wherein an expansion of the pressure shell in radial outward direction and in axial direction is limited; loading the pressure shell with a pressure means, so that the inner surface of the pressure shell is evenly applied to the surface of the object; and providing a pressure increase until the terminal pressure to be tested is reached, or a damage of the tubular object occurs. The invention also relates to an apparatus for testing tubular objects, configured to use the method.
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