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Title:
DRAINPIPE, DRAINPIPE BLOCKAGE-PREVENTING METHOD, AND DRAINPIPE SETTING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2013/099920
Kind Code:
A1
Abstract:
Designing the drainpipe so that the inner wall of the pipe is equipped with a concentrating channel that concentrates the flow of a fluid makes it possible to fluid dynamically limit fluid freezing and prevent pipe blockage without investing external heat energy.

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JP2000240117JOINT STRUCTURE BETWEEN SIDE DITCH AND DRAIN PIPE
Inventors:
KOMATSU YOSHIMI (JP)
YOSHIDA YOSHIHIRO (JP)
Application Number:
PCT/JP2012/083600
Publication Date:
July 04, 2013
Filing Date:
December 26, 2012
Export Citation:
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Assignee:
YOSHIDA ANNY CO LTD (JP)
UNIV AKITA (JP)
International Classes:
E03C1/12
Foreign References:
JPS5459623A1979-05-14
JP2002235877A2002-08-23
JPH03199794A1991-08-30
JPH0390737U1991-09-17
JP3071180U2000-08-29
JP2005213809A2005-08-11
JPH10321356A1998-12-04
Other References:
See also references of EP 2799632A4
Attorney, Agent or Firm:
YAMAMOTO, NORIAKI (JP)
Yamamoto 典輝 (JP)
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Claims:



 
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