Baths – closets – sinks – and spittoons – Ventilation – Electric-motor pump
Patent
1995-10-06
1998-02-17
Phillips, Charles E.
Baths, closets, sinks, and spittoons
Ventilation
Electric-motor pump
E03D 9052
Patent
active
057180059
ABSTRACT:
A foul air remover is placed inside the tank of an ordinary toilet system having a water intake assembly for introducing water into the tank, a flushing water discharge pipe connecting the tank with a toilet bowl, a plunger normally keeping the flushing water discharge pipe closed, and an overflow pipe with an open upper end above the water level inside the tank and connected to the flushing water discharge pipe at the lower end such that foul air in the toilet bowl can be brought inside the tank therethrough. The foul air remover has an air intake chamber connected to the open upper end of the overflow pipe, a deodorizing chamber and a partition therebetween incorporating a fan for drawing foul air from the toilet bowl through the water discharge and overflow pipes and the air intake chamber into the deodorizing chamber where the foul air contacts an odor-destroying liquid. A similar combination of a foul air remover and a tank may be connected to the discharge pipe of a toilet system of a so-called institutional type through a connecting pipe equipped with a check valve which is normally open to allow foul air to be drawn therethrough to the foul air remover but is closed when the toilet is flushed.
REFERENCES:
patent: 4165544 (1979-08-01), Barry
patent: 4166298 (1979-09-01), Pearson
patent: 4168550 (1979-09-01), Lindauer
patent: 4864664 (1989-09-01), Higgins
patent: 5125119 (1992-06-01), Munoz
patent: 5369810 (1994-12-01), Warren
patent: 5493737 (1996-02-01), Chu
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