Toilet bowl noxious fume and mist evacuation

Baths – closets – sinks – and spittoons – Ventilation – Bowl structure or vent valve

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Details

4213, E03D 905

Patent

active

059060093

ABSTRACT:
A toilet bowl has gases and bacteria or virus-laden mist removed directly therefrom by an air evacuation system, both during and after use of the toilet. The system can also include apparatus for forced air dispensing of air-freshening deodorant or disinfectant during the air evacuation from the bowl, which dispensing apparatus is driven by but is independent from the flow of air and gas or mist exhausted during evacuation. The air evacuation system may be associated with a dedicated vacuum-creating pump or be integral with a ceiling exhaust fan which has the capability of either exhausting air from the bathroom or through the toilet bowl air evacuation system.

REFERENCES:
patent: 997442 (1911-07-01), Diffenderfer
patent: 1401091 (1921-12-01), Lucas
patent: 1513168 (1924-10-01), Frick
patent: 1883406 (1932-10-01), Ronning
patent: 1885715 (1932-11-01), Hanson
patent: 2074211 (1937-03-01), Churchill
patent: 2240130 (1941-04-01), Carothers
patent: 2371923 (1945-03-01), Sanford et al.
patent: 2724840 (1955-11-01), Scott et al.
patent: 2728921 (1956-01-01), Dorko
patent: 4882790 (1989-11-01), Ricard
patent: 4893359 (1990-01-01), Vu et al.
patent: 5179737 (1993-01-01), Ricard
patent: 5522093 (1996-06-01), Schaffer

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