Baths – closets – sinks – and spittoons – Ventilation – Electric-motor pump
Patent
1974-08-13
1976-02-24
Artis, Henry K.
Baths, closets, sinks, and spittoons
Ventilation
Electric-motor pump
4 72, E03D 904, A47K 1300
Patent
active
039395065
ABSTRACT:
A ventilator for toilets is disclosed which includes an exhaust conduit connected to the upper portion of a toilet water tank for withdrawing odors from the toilet bowl through the overflow pipe in the water tank and flush water distribution outlets in the toilet bowl. A fan located in the attic and resiliently suspended therein to reduce noise resulting from fan vibrations draws odor laden air from the top of the water tank and discharges the odor laden air into the attic. A special control circuit for the attic fan is connected to the bathroom light switch which requires the light switch to be turned on, off, and back on again within a predetermined time interval before the attic fan will be turned on. A pressure sensing switch is provided which cuts the fan off when the pressure in the toilet tank reaches a predetermined low level after the tank is flushed. One preferred connection of the exhaust line to the interior of the water tank makes use of the hollow rim of toilet tank cover. Another connection of the exhaust line to the interior of the water tank makes use of a gap in the seal between the water tank and its cover and a special gasket surrounding the exhaust pipe entry point and fitted between a bathroom wall and a toilet water tank and cover which are positioned adjacent the wall. Modifications of the invention include special nozzles at the entrance end of the exhaust to connect with the water tank and a decorative exhaust pipe serving the dual function of a towel rack.
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