Baths – closets – sinks – and spittoons – Ventilation – Electric-motor pump
Patent
1985-09-04
1986-04-22
Artis, Henry K.
Baths, closets, sinks, and spittoons
Ventilation
Electric-motor pump
4209R, E03D 904
Patent
active
045832501
ABSTRACT:
This invention is an amendment of patent application Ser. No. 06/612,847 filed May 22, 1984 relating to the method of extracting objectional odors from toilet bowls utilizing its present structures and installation. A powered exhaust fan attached directly above are designed overflow tube will suck the foul air from the bowl through the water outlets under the rim of the toilet seat; through the flush valve assembly; into the overflow tube and forcing the same air through twin charcoal filters incorporated into the odor extracting device. Emphasis of the instant invention is on the design of the water tank overflow tube which is critical to the effectiveness of an odor extracting device. The redesigned overflow tube, while retaining the function of the conventional overflow tube, will allow for the recycling of previously filtered air. Also, the fan motor in the instant invention is so constructed that easy access to the interior of the odor extracting device is facilitated. Since no other modification of the toilet bowl and tank is required, this system is practical, simple and economical to use on existing and future toilet bowl designs.
REFERENCES:
patent: 2100962 (1937-11-01), Juntunen
patent: 2105794 (1938-01-01), Norris
patent: 2227920 (1941-01-01), Baither
patent: 2279789 (1942-04-01), Jentzer
patent: 2881450 (1959-04-01), Tubbs
patent: 2985890 (1961-05-01), Baither
patent: 3691568 (1972-09-01), Martz
patent: 3763505 (1973-10-01), Zimmerman
patent: 3781923 (1974-01-01), Maisch et al.
patent: 4165544 (1979-08-01), Barry
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