Odorless toilet

Baths – closets – sinks – and spittoons – Ventilation – Electric-motor pump

Reexamination Certificate

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Details

C004S217000, C004S219000, C004S352000, C004S347000, C004S20900R

Reexamination Certificate

active

07730560

ABSTRACT:
The present invention provides an odorless toilet comprising an adapter ring compressed between a toilet horn and a sewer pipe flange and having a hollow core, an adapter inlet and an exhaust vent; a seat having at least one intake port, a gas cavity and a gas cavity exhaust port; a fan having a fan inlet and a fan exhaust, the fan inlet connected to the gas cavity exhaust port and the fan exhaust connected to the adapter inlet, wherein when the fan is operating, a negative pressure develops in the seat gas cavity, and the odor is pulled into the seat gas cavity through at least one intake port and exhausted from the gas cavity exhaust port to the adapter inlet and then channeled into a sewer pipe through the exhaust vent, wherein the exhaust vent of the adapter ring extends below the sewer pipe flange, wherein the adapter ring has an opening through the center to allow unobstructed passage of waste matter from the toilet horn to a sewer pipe when the toilet is flushed.

REFERENCES:
patent: 2777137 (1957-01-01), McFadden
patent: 3122757 (1964-03-01), Sowards
patent: 4365361 (1982-12-01), Sanstrom
patent: 4494255 (1985-01-01), Drummond
patent: 5355536 (1994-10-01), Prisco
patent: 5386594 (1995-02-01), Hilton
patent: 5704074 (1998-01-01), Baldea
patent: 6637040 (2003-10-01), Alba
patent: 6772449 (2004-08-01), Wolfe
patent: 7103925 (2006-09-01), Toth
patent: 7117548 (2006-10-01), Reyes
patent: 2006/0037127 (2006-02-01), Chen
patent: 2006/0085897 (2006-04-01), Birdsong

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