| 摘要 |
The present invention relates to a means for extending an electrical circuit through a modular assembly comprising a plurality of threaded pipe modules which utilizes electrical contact strips. In particular, the circuit is extended through a system of interengagable outer pipe modules, adapted for use with one another, and for use with any of a plurality of inner pipe modules. Each of the modules is preferably a length of pipe having at least on its interior electrically insulating material and electrically conductive strips in a fixed spatial relationship. A precisely threaded coupling is formed on at least one end of the pipe having a single starting point for engagement with another precisely threaded coupling on another outer module.
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