Pipes and tubular conduits – Plural duct – With spacer and encircling element
Reexamination Certificate
2005-04-26
2005-04-26
Hoook, James (Department: 3754)
Pipes and tubular conduits
Plural duct
With spacer and encircling element
C138S148000, C138S149000, C138S157000
Reexamination Certificate
active
06883548
ABSTRACT:
A spacer for a long substrate in the interior of a long tube, with a superinsulation material being disposed between the substrate and the tube. The spacer includes two rings (3, 4) seated on the substrate (1) and spaced apart from each other at a longitudinal axial distance, a tube section (5) supported on the rings (3, 4) and a second ring (6) disposed on the tube section (5). The first rings (3, 4), the tube section (5) and the second ring (6) are made of a material with poor thermal conductivity and high mechanical strength.
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Hoook James
Nexans
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