Double pipe apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8511333
APP PUB NO 20100308574A1
SERIAL NO

12746842

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A double pipe apparatus that includes an outer pipe and an inner pipe inserted into the outer pipe, and regulates a flow of a gas flowing through the double pipe apparatus. The double pipe apparatus includes a flow regulating valve, a valve stem which which penetrates the outer pipe and the inner pipe, and fluid leakage preventing parts including a bellows which is provided between the outer pipe and the inner pipe and which prevents the gas from leaking outside the outer pipe. One end of the bellows is attached to an inner wall of the outer pipe, and the other end of the bellows is attached to a flange formed on the valve stem, so that the gas flowing through the inner pipe is prevented from leaking outside the outer pipe.

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First Claim

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Patent Owner(s)

  • PEBBLE BED MODULAR REACTOR (PROPRIETARY) LIMITED

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doi, Shoichi Hyogo, JP 11 189
Takeda, Noriyuki Tokyo, JP 12 213

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