| 摘要 |
<p>1. Sanitary apparatus of the type comprising a bowl (1), adapted to contain the sanitary water during use and being supplied with water by a supply conduit connected to the mains water supply, said apparatus comprising means to prevent any backflow through suction, from the bowl towards the mains supply, of the type comprising an intermediate chamber connected with the atmosphere, supplied by the conduit supplying the sanitary water, connected to the mains supply (5) and issuing into said chamber, with interposition upstream of the zone, of an adjustable obturator such as valve (6), or the like, characterized in that said chamber comprises an overflow wall or edge (13), over which the water can escape by gravity towards the bowl, the upper level (12) of said overflow being situated higher with respect to the water line (17) in the bowl when the latter has reached its maximum filling level, the intermediate chamber (8) communicating with the atmosphere via an opening (18, 18') which communicates with the upper part of said chamber, and the sanitary water conduit (7) supplying the apparatus and issuing into the chamber (8) is situated on a lower level with respect to the waterline (17) when the bowl has reached its maximum filling level, said chamber being filled by the upstream flow of the water until said water flows over the overflowing edge (13) to supply the bowl by gravity.</p> |
