Vacuum-insulated pipe

Details Vacuum-insulated pipe Vacuum-insulated pipe

2006-08-22

2006-08-22

Brinson, Patrick (Department: 3754)

Pipes and tubular conduits

Plural duct

Coaxial

C138S149000, C138S148000, C285S047000

Reexamination Certificate

active

07093619

ABSTRACT:
To provide a thermal insulation piping with no radially projecting part from a periphery thereof, so as to facilitate insertion of the thermal insulation piping into a pipeline or equivalent. In a thermal insulation tube10having a vacuum layer between an inner tube11and an outer tube12, an evacuation port30for vacuum evacuation is oriented parallel with a longitudinal direction of the thermal insulation piping at an end of the thermal insulation tube10. This construction can produce the thermal insulation tube10with no radially projecting part from a periphery thereof, thus providing improved workability when the thermal insulation piping is contained in the pipeline or equivalent. Further, a flexible pipe(s)40is/are preferably connected to the evacuation port(s)30. This can allow increased positional tolerances in the connection of the evacuation port(s) to a vacuum evacuation device.

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