Drainpipe, method for preventing blockage of drainpipe and installation structure of drainpipe

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United States of America Patent

PATENT NO 9279523
APP PUB NO 20140182731A1
SERIAL NO

14240097

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Abstract

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A drainpipe comprising a concentrating flow path to concentrate flow of fluid on an inner wall of the pipe, which makes it possible to inhibit freezing of the fluid hydrodynamically without providing heat energy from outside, to thereby prevent blockage of the pipe.

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Patent Owner(s)

Patent OwnerAddress
AKITA UNIVERSITY1-1 TEGATA GAKUEN-MACHI AKITA-SHI AKITA 010-8502
YOSHIDA ANNY CO LTDAKITA-SHI AKITA 010-1605

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Komatsu, Yoshimi Akita, JP 10 43
Yoshida, Yoshihiro Akita, JP 116 915

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