초록 ▼

A vacuum assisted toilet is described wherein a vacuum is applied to a toilet bowl outlet during flushing, which avoids malfunctions that could allow sewer gas to escape, and which uses flushing water effectively. The toilet bowl outlet includes upper and lower trap devices (40,44, FIG. 5) coupled b

A vacuum assisted toilet is described wherein a vacuum is applied to a toilet bowl outlet during flushing, which avoids malfunctions that could allow sewer gas to escape, and which uses flushing water effectively. The toilet bowl outlet includes upper and lower trap devices (40,44, FIG. 5) coupled by a trapway (42), with the lower trap device forming an unobstructed air passage when no water is moving therethrough but which includes a trapping region (64) that completely fills with water and forms an airflow barrier during flushing. The vacuum source includes a container (72, FIG. 1) in the toilet tank, with the container fixed in place in the tank to lie stationary therein, and with an ordinary flush valve (23) lying outside the container, so substantially the only part of the toilet that moves during flushing is the long developed and reliable flush valve. A baffle (110) separates a first tank portion (114) which holds the container and flush valve, from a second tank portion (116) which holds an inlet valve. The top (118) of the baffle lies a plurality of centimeters below the high water level (16), so that a lot of water passes into the toilet bowl at the beginning of flushing.

대표청구항 ▼

In a toilet which includes a tank, a toilet bowl, a tank inlet valve through which water is received into the tank up to a predetermined high water level, a tank flush valve through which water in the tank is flushed into the bowl, a toilet bowl outlet, and a vacuum source coupled to said outlet to

In a toilet which includes a tank, a toilet bowl, a tank inlet valve through which water is received into the tank up to a predetermined high water level, a tank flush valve through which water in the tank is flushed into the bowl, a toilet bowl outlet, and a vacuum source coupled to said outlet to apply a vacuum therein during flushing, the improvement wherein: said vacuum source includes a container lying in said tank and having upper and lower portions, with said upper portion being sealed from said tank and said lower portion having an opening leading to water in said tank, so that when the tank water level around said container opening drops during flushing a vacuum is created in said container upper portion, said vacuum source also including a vacuum conduit extending between said container upper portion to said toilet outlet to apply a vacuum that aids in moving material through said outlet; and including a baffle which divides said tank into two horizontally-spaced compartments, including a first compartment that includes said flush valve and said container opening, and a second compartment, said baffle having a bottom at the bottom of said tank and a top at a height that is a plurality of centimeters below said high water level, with the volumes of said compartments above said baffle merging, whereby when a flushing starts, water from above both compartments passes toward said flush valve, but when the water level drops below the top of the baffle substantially only water in said second compartment passes toward said flush valve.