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Insulated heating and/or sanitation pipe
   
Document Number
US Patent 7004203
Issued Date
February 28, 2006
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Abstract
The heating and/or sanitation pipe comprises an inner pipe (12) made of a plastic material and a metal corrugated pipe (14) surrounding the inner pipe (12) at a radial distance {circle around (R)}). Further, the heating and/or sanitation pipe is provided with a compressible and/or expanded material (16) between the inner pipe (12) and the corrugated pipe (14) for fixing the inner pipe (12) inside the corrugated pipe (14). The compressible and/or expanded material (16) is adapted to be detached from the inner pipe for the purpose of exposing a connecting end of the inner pipe (12). Further, the heating and/or sanitation pipe comprises an insulation layer (18) surrounding the metal corrugated pipe (14) and an outer covering (20) around the insulation layer (18).
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Number of Claims:
14
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Published
February 28, 2006
Application Number
10/482,660
Filed
July 7, 2002
US Classification
138/149   138/121 138/138
Int'l Classification
F16L   9/14   (20060101)  
Examiner
Attorney/Law Firm
Priority Data
Jul 07, 2002 [DE] 101 33 113
USPTO Field of Search
138/149   138/121   138/122   138/138  
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