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1. WO2022010416 - SYSTEM AND METHOD FOR PREVENTION OF BACKFLOW IN VERTICAL RAINWATER DRAINAGE PIPE WITH MULTIPLE SIDE BRANCHES

Publication Number WO/2022/010416
Publication Date 13.01.2022
International Application No. PCT/SG2021/050390
International Filing Date 06.07.2021
IPC
E04D 13/04 2006.1
EFIXED CONSTRUCTIONS
04BUILDING
DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
13Special arrangements or devices in connection with roof coverings; Roof drainage
04Roof drainage; Drainage fittings in flat roofs
E03C 1/12 2006.1
EFIXED CONSTRUCTIONS
03WATER SUPPLY; SEWERAGE
CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
1Domestic plumbing installations for fresh water or waste water; Sinks
12Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
E04D 13/08 2006.1
EFIXED CONSTRUCTIONS
04BUILDING
DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
13Special arrangements or devices in connection with roof coverings; Roof drainage
04Roof drainage; Drainage fittings in flat roofs
08Down pipes; Special clamping means therefor
Applicants
  • FAST FLOW LIMITED [SG]/[SG]
Inventors
  • GOH, Chun Hee
  • ANG, Gilbert
Agents
  • ENGLISH, Matthew
Priority Data
10202006628S09.07.2020SG
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR PREVENTION OF BACKFLOW IN VERTICAL RAINWATER DRAINAGE PIPE WITH MULTIPLE SIDE BRANCHES
(FR) SYSTÈME ET PROCÉDÉ DE PRÉVENTION DU REFLUX DANS UN TUYAU D'ÉVACUATION D'EAU DE PLUIE VERTICAL AYANT DE MULTIPLES DÉRIVATIONS LATÉRALES
Abstract
(EN) A branch pipe arrangement for branching from a vertical pipe, the branch pipe arrangement comprising: a branch junction mounted to said vertical pipe having a restricted cross section on a vertical portion forming a nozzle, said nozzle arranged to increase a velocity head of water passing through said nozzle, an expansion chamber directly below the nozzle, said expansion chamber having a cross sectional area greater than a cross sectional area of the vertical pipe; a branch portion projecting from the expansion chamber; a floor outlet and; a branch pipe connecting the branch portion to the floor outlet.
(FR) Un agencement de tuyau de dérivation pour branchement à partir d'un tuyau vertical, l'agencement de tuyau de dérivation comprenant : une jonction de dérivation montée sur ledit tuyau vertical ayant une section transversale limitée sur une partie verticale formant une buse, ladite buse étant conçue pour augmenter une charge de vitesse de circulation de l'eau passant par ladite buse, une chambre d'expansion située directement au-dessous de la buse, ladite chambre d'expansion ayant une surface de section transversale supérieure à une surface de section transversale du tuyau vertical; une partie dérivation faisant saillie à partir de la chambre d'expansion; une sortie de plancher; et un tuyau de dérivation reliant la partie dérivation à la sortie de plancher.
Latest bibliographic data on file with the International Bureau