Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 12, 2009
Patent Application Number
11424608
Date Filed
June 16, 2006
Patent Primary Examiner
Patent abstract
A penetration system for a pipe entering a duct wall at a pipe stub. The penetration system may include a thermal sleeve surrounding the pipe stub and a bellows positioned below the thermal sleeve and about the pipe.
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