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Machine translation
1. (WO1980000175) METHOD AND APPARATUS FOR SIPHONING WATER FROM A PONDING AREA ON A FLAT ROOF
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000175    International Application No.:    PCT/US1978/000214
Publication Date: 07.02.1980 International Filing Date: 14.12.1978
IPC:
E04D 13/04 (2006.01), E04D 13/08 (2006.01), F04F 10/00 (2006.01)
Applicants:
Inventors:
Priority Data:
922154 05.07.1978 US
Title (EN) METHOD AND APPARATUS FOR SIPHONING WATER FROM A PONDING AREA ON A FLAT ROOF
(FR) METHODE ET APPAREIL POUR SIPHONNER L"EAU D"UNE FLAQUE SUR UN TOIT PLAT
Abstract: front page image
(EN)A method and apparatus for removing water from a ponding area of a flat roof having a run-off system which is no longer operable to drain water from the ponding area which comprises directing a quantity of the run-off water flowing in the run-off system (54 or 60) as a result of the commencement of a rain condition or the like into a priming chamber (22 or 82), displacing water from the priming chamber back into the run-off system in such a way as to establish a negative pressure condition within the priming chamber, and communicating (46 or 72) the negative pressure condition to an end of a siphon hose (40) at a vertical level below the level of the ponding area, the other inlet end (44) of which is disposed in water sucking relation to the ponding area to thereby prime the siphon hose and commence the flow of water from the ponding area which flows after the cessation of the rain condition or the like continues until the water is substantially removed from the ponding area.
(FR)Methode et appareil pour enlever l"eau d"une flaque d"un toit en terrasse dont le systeme d"ecoulement ne fonctionne plus consiste a diriger une certaine quantite de l"eau d"ecoulement coulant dans le systeme d"ecoulement (54 ou 60) resultant d"un debut de pluie dans une chambre d"amorcage (22 ou 82), a deplacer l"eau de la chambre d"amorcage et a la ramener dans le systeme d"ecoulement de maniere a etablir une pression negative dans la chambre d"amorcage, et a etablir (46 ou 72) la pression negative a une extremite d"un tube de siphon (40) a un niveau situe en dessous du niveau de la flaque, l"autre extremite d"admission (44) etant disposee dans l"eau pour l"aspirer de maniere a amorcer le tuyau de siphon et commencer l"evacuation de l"eau de la flaque qui continue de s"ecouler apres arret de la pluie jusqu"a ce que pratiquement toute l"eau de la flaque soit evacuee.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)