Title:
DRAINAGE JOINT
Document Type and Number:
Japanese Patent JP2008111319
Kind Code:
A
Abstract:
To reduce load to be applied on a drainage stack when drainage joins the drainage stack.
A flow-in part 54 allows the drainage from a vertical pipe 22 to flow into the drainage stack 12 through a drainage joint main body 52 in the direction for causing a swirl stream in the drainage stack 12. Consequently, the drainage flowing into the drainage stack 12 whirls spirally along an internal wall of the drainage stack 12 and flows downward in the drainage stack 12. By causing the swirl stream in the drainage stack 12 in this way, partial increase of rate of water filling in the drainage stack 12 is prevented to reduce load to be applied on the drainage stack 12 when the drainage joins the drainage stack 12.
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Inventors:
OKAMOTO KOICHIRO
MARUYAMA HIDEYUKI
MARUYAMA HIDEYUKI
Application Number:
JP2006296595A
Publication Date:
May 15, 2008
Filing Date:
October 31, 2006
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
E03C1/12; F16L41/03
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda