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AssigneeHitachi, Ltd.
InventorsTakanobu Mori, Yasuo Kondo, Hiroshi Satoh, Shigeo Hattri, Takahiko Kato, Yoshimi Yanai
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A shape memory alloy pipe coupling in the present invention for joining two pipes, the pipe coupling comprising a tube of a shape memory alloy, and a cover of stainless steel having a sufficient thickness and having high corrosion resistance for covering the tube. The shape memory alloy is enclosed by the cover of high corrosion-resistant stainless steel, by which high-temperature water can be prevented from making the shape memory alloy brittle and from corroding and damaging the shape memory alloy particularly through galvanic corrosion even in the case where such high-temperature water exists in the inside or outside of the pipes.
A shape memory alloy pipe coupling comprising:
An underwater pipe arrangement utilizing a pipe coupling for tightening and joining pipes of stainless steel therethrough from an outside and capable of being disposed in a place where water exists in an inside or outside of said pipes, said pipe coupling including:
Dependencies are inferred from the claim text.