Method for providing leak detection in pre-insulated piping

Details Method for providing leak detection in pre-insulated piping Method for providing leak detection in pre-insulated piping

2011-06-14

2011-06-14

Koval, Melissa J (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C138S104000, C138S149000, C073S049100

Reexamination Certificate

active

07960978

ABSTRACT:
A method is shown for providing status detection, in particular leak detection, in a pre-insulated pipeline for the transportation of media, in particular, steam or hot water. The pipeline has an inner medium-carrying pipe, a surrounding heat-insulating layer of bonded foam, and an outer protective polyolefin jacket. A special length of polymer coated wire is included as a part of the normal bare conductor wire which is used as a part of the electrical sensing system of the pipeline and is used to by-pass various obstructions in the foamed insulation of the pipeline. The insulated length of the coated wire is heat fused at points of egress and ingress through the outer polymeric jacket with the compatible materials of the coated wire and jacket forming a water tight seal.

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