Baths – closets – sinks – and spittoons – Ventilation – Electric-motor pump
Patent
1990-05-15
1991-07-09
Recla, Henry J.
Baths, closets, sinks, and spittoons
Ventilation
Electric-motor pump
4216, 4348, E03D 9052
Patent
active
050293460
ABSTRACT:
A system for venting odors from a toilet having a bowl with a plurality of openings disposed about its rim and a tank to store water with a bowl fill tube interconnected with the openings. A vent is positioned above the level of maximum water storage in the tank. A low pressure region within the vent is established bias air flow through bowl rim openings in the toilet and also through a bowl fill tube in the toilet tank and into the vent. Finally, an exhaust outlet is located at a remote point from the toilet in order to output the air flow from the toilet. To improve venting of air flow between the vent and the fill tube, the tank lid may include a seal positioned between the lid and the tank. The system may also include a valve with dampers that allow air flow to enter the tank during flushing and allow air flow to exit the tank during venting, but that limits air flow when the system is inoperative.
REFERENCES:
patent: 2297935 (1942-10-01), Baither
patent: 2949615 (1960-08-01), Farrell
patent: 3703010 (1972-11-01), Russell
patent: 3763505 (1973-10-01), Zimmerman
patent: 3942200 (1976-03-01), Pearson
patent: 4168553 (1979-09-01), Studer
patent: 4232406 (1980-11-01), Beeghly et al.
patent: 4385912 (1983-05-01), Parrick et al.
Jacyna Casey
Recla Henry J.
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