Invention Grant
US09279523B2 Drainpipe, method for preventing blockage of drainpipe and installation structure of drainpipe
有权
排水管，防止排水管堵塞的方法和排水管的安装结构
- Patent Title: Drainpipe, method for preventing blockage of drainpipe and installation structure of drainpipe
- Patent Title (中): 排水管，防止排水管堵塞的方法和排水管的安装结构
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Application No.: US14240097Application Date: 2012-12-26
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Publication No.: US09279523B2Publication Date: 2016-03-08
- Inventor: Yoshimi Komatsu , Yoshihiro Yoshida
- Applicant: YOSHIDA ANNY CO. LTD. , AKITA UNIVERSITY
- Applicant Address: JP Akita JP Akita
- Assignee: YOSHIDA ANNY CO. LTD.,AKITA UNIVERSITY
- Current Assignee: YOSHIDA ANNY CO. LTD.,AKITA UNIVERSITY
- Current Assignee Address: JP Akita JP Akita
- Agency: Ladas & Parry LLP
- Priority: JP2011-283396 20111226; JP2012-107956 20120509
- International Application: PCT/JP2012/083600 WO 20121226
- International Announcement: WO2013/099920 WO 20130704
- Main IPC: E03B7/10
- IPC: E03B7/10 ; F16L9/00 ; E03B7/12
Abstract:
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.
Public/Granted literature
- US20140182731A1 DRAINPIPE, METHOD FOR PREVENTING BLOCKAGE OF DRAINPIPE AND INSTALLATION STRUCTURE OF DRAINPIPE Public/Granted day:2014-07-03
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