Maintenance device and method for producing a maintenance access
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United States of America Patent
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May 5, 2015
Grant Date -
Oct 27, 2011
app pub date -
Nov 23, 2009
filing date -
Nov 26, 2008
priority date (Note) -
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Abstract
The invention relates to a maintenance device for maintaining an elongated and in particular tubular hollow body (2), which is designed to conduct a fluid, having a sealing device (4) comprising a function unit (12), said sealing device being provided for sealing a working area (9) with respect to surroundings of the hollow body (2) and being movable in a direction along a surface of the hollow body (2), wherein the sealing device (4) comprising the function unit (12) can be moved at least partially in the longitudinal direction (B) of the hollow body (2), relative to the surface (7) of same, while preserving a tight seal. In addition, a method for forming a maintenance access on an elongated and in particular tubular hollow body is claimed.
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