Vacuum assist toilet trap

E - Fixed Constructions – 03 – D

Patent

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Details

E03D 5/00 (2006.01) E03D 11/18 (2006.01)

Patent

CA 2139722

A vacuum assisted toilet is described wherein a vacuum is applied between upper and lower traps (40,44 in Fig. 2) of a toilet bowl outlet during aflushing, wherein the lower trap is constructed to more reliably assure that an air passage (64) above a pool of water (52) of the lower trap will quickly close near the beginning of a flushing and will remain open between flushings. The lower trap has a lower wall (51) that holds a pool of water (52) with a pool top (62) of predetermined height (A) between flushings, and has an upper wall (60) spaced above the pool top to form an air passage. The upper wall forms a narrow but tall vent (100, Fig. 4) of the air passage that is open between flushings, with the vent being quickly closed by water rapidly flowing therethrough at the beginningof a flushing and being quickly opened at the end of the flushing.

W.C. à aspiration conçus pour créer un vide entre les siphons supérieur et inférieur (40, 44, Fig. 2) de la sortie d'une cuvette de W.C. lorsqu'on tire la chasse d'eau. Le siphon inférieur est construit de manière à mieux garantir que le conduit à air (64) situé au-dessus de la nappe d'eau (52) du siphon inférieur se ferme rapidement au début d'une chasse d'eau et reste ouvert entre les chasses d'eau. Le siphon inférieur comporte une paroi inférieure (51) soutenant une nappe d'eau (52) dont la surface (62) s'élève à une hauteur prédéterminée (A) entre les chasses d'eau, ainsi qu'une paroi supérieure (60) placée à une certaine distance au-dessus de la surface de la nappe d'eau pour former un conduit d'aérage. La paroi supérieure forme l'orifice étroit mais long (100, Fig. 4) de ce conduit d'aérage s'ouvrant entre les chasses d'eau. Cet orifice se referme rapidement sous l'action du flux d'eau rapide qui le remplit au début d'une chasse d'eau et s'ouvre rapidement à la fin.

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