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| Number | Title | Issue Date |
| 6772449 | Toilet ventilation system A toilet seat ventilation assembly for mounting on a toilet bowl includes a seat having a and air passageway and plurality of vent holes formed in the seat. A tubular manifold is rotatably secured in mounting fixtures at the rear of the toilet seat. The toilet seat ... | 08/10/2004 |
| 6760928 | System and method for controlling toilet odors A system and method for controlling toilet odors. A toilet seat having a tapered vent passage formed therein, for causing a gradual increase in flow velocity there through is coupled to a conduit, which is further coupled to a fan. The fan induces air flow through t... | 07/13/2004 |
| 6749805 | Foul air eliminator A self-contained foul air eliminator comprises a housing with an intake port an impeller, a converter, and an exhaust port. The converter includes an oxidizing agent and an aqueous solution of a promoter. The eliminator is typically portable to eliminate malodors fo... | 06/15/2004 |
| 6735790 | Vent stack screen for portable toilet holding tanks A vent stack screen for portable toilet holding tanks is provided in the form of a cap designed to fit over the open end of an open air vent stack extending from the holding tank through the roof of a portable toilet. The cap is constructed from a tubular sleeve of ... | 05/18/2004 |
| 6694534 | Toilet ventilation system A ventilation system (10) for a conventional flush toilet (100) generally comprises a battery (20); an air sweetener (30) in a water tank (140) for deodorizing or scenting air (90D); an air flow device (40) positioned within a tank (140) including a duct ... | 02/24/2004 |
| 6678900 | Bowl ventilation apparatus with proximity sensor A toilet bowl ventilation apparatus for treating air from a toilet having an intake duct proximal to the toilet bowl, a hose for connecting the intake duct to a fan unit creating a vacuum through the intake duct and the hose so as to draw air from the toi... | 01/20/2004 |
| 6643850 | Odor removal system An air filter assembly including a frame, a filter and an odor eliminator liquid. The frame forms an air flow channel. The filter is connected to the frame in the air flow channel. The filter includes at least one filter element. The odor eliminator liqui... | 11/11/2003 |
| 6550072 | Bowl ventilation apparatus A toilet bowl ventilation apparatus for treating air from a toilet having an intake duct proximal to the toilet bowl, a hose for connecting the intake duct to a vacuum so as to draw air from the toilet bowl region into the intake duct and then through the... | 04/22/2003 |
| 6351855 | Bathroom odor withdrawal system A commode deodorizing filtering device for use in a commode water tank having an overflow tube operably disposed therein and communicating with a toilet bowl, and having refill device with refill tube and float operably disposed in the water tank, the dev... | 03/05/2002 |
| 6295656 | Venting apparatus for flush toilets A toilet venting apparatus includes an upper insert mountable between a toilet tank and a toilet bowl, and a lower insert mountable between the bowl and a floor sewer pipe. The upper insert cooperates with the toilet bowl for removal of gases in the bowl ... | 10/02/2001 |
| 6247191 | Locomotive sanitation apparatus and method of protecting the same from freezing A sanitary system for a locomotive wherein the treatment tank is protected from freezing by the use of the heat available in the exhaust air removed from the toilet compartment. A sealed and insulated compartment is formed around the treatment tank, and a... | 06/19/2001 |
| 6202226 | Portable waste odor collection apparatus A portable apparatus which works in conjunction with an existing ceiling exhaust intake to more directly and selectively intake waste odor emanating either from a bed pan, or from a toilet having a conventionally mounted hinged toilet seat. The waste odor... | 03/20/2001 |
| 5555572 | Toilet bowl ventilating and deodorizing apparatus A toilet bowl ventilating and deodorizing apparatus comprises an odor collector for extracting air from a toilet bowl, a filter assembly for deodorizing the air extracted from the toilet bowl, and a neck coupling the filter assembly to the odor collector,... | 09/17/1996 |
| 5539937 | Lid integrated deodorizer for toilets In a device for eliminating odors from a toilet bowl, a seat and lid appurtenance houses an internal air passage leading from the toilet bowl to the ambient atmosphere. A central lid extension (42 and 64) functions as a backrest and a housing for a motori... | 07/30/1996 |
| 5488741 | Toilet bowl ventilating and deodorizing apparatus A toilet bowl ventilating and deodorizing apparatus comprises an odor collector for extracting air from a toilet bowl, a filter assembly for deodorizing the air extracted from the toilet bowl, and a neck coupling the filter assembly to the odor collector,... | 02/06/1996 |
| 5369812 | Toilet ventilation assembly including fluid extraction device A toilet ventilation apparatus (40) for extracting air (13) proximate a toilet assembly (10). The toilet ventilation apparatus (40) comprises an air intake mechanism (42) positioned for use proximate a rim (30) of a toilet bowl (12) for intaking air proxi... | 12/06/1994 |
| 5305472 | Ventilation unit for a toilet A toilet ventilation unit including a vacuum motor mounted in the wall voids surrounding the toilet that is connected to the back of the tank and utilizes the water passageway of a conventional toilet to draw odors and aromas from the toilet. A vacuum shu... | 04/26/1994 |
| 5259072 | Toilet ventilation assembly including fluid extraction device A toilet ventilation apparatus (40) for extracting air (13) proximate a toilet assembly (10). The toilet ventilation apparatus (40) comprises an air intake mechanism (42) positioned for use proximate a rim (30) of a toilet bowl (12) for intaking air proxi... | 11/09/1993 |
| 5231705 | Method and apparatus for eliminating toilet odors A system for removing unpleasant gaseous odors in a toilet having a bowl, a tank, and an overflow tube is disclosed. The system includes an air intake port located in the toilet bowl. A battery powered suction pump assembly contained in the tank is connec... | 08/03/1993 |
| 5123124 | Automatic, self-cleaning, water saving, toilet system A toilet system providing improved convenience, efficiency and sanitation with automatic operation. Basically, the toilet includes a bowl, a seat partially covering the bowl opening and a lid movable between a raised position exposing the seat and a lower... | 06/23/1992 |
| 5016294 | Odorless toilet A toilet and toilet seat adapter unit which can be produced at a low cost yet which provides improved sealing around the toilet seat and which is easy to clean. The toilet seat adapter unit is disposed between the toilet seat and the upper surface of the ... | 05/21/1991 |
| 4984310 | Lavatory pan seat A lavatory pan seat formed in fitted together upper and lower parts defining between them an air flow channel with which communicate air inlet apertures having entrances at the inner periphery of the seat and an air extraction aperture having an exit at t... | 01/15/1991 |
| 4944045 | Condition-specific toilet ventilation system A ventilation system for removing odorous air from a toilet bowl includes a chemically sensitive electronic transducer that senses the presence of methane gas and controls a fan and motor unit according to such presence. When the amount of methane in the ... | 07/31/1990 |
| 4933995 | Flush-operated bathroom fan A flush-operated bathroom fan is provided which utilizes a float-operated actuator in the water closet tank of the toilet which actuates a switch, turning on the ceiling fan, when the water level in the water closet tank falls indicating that the toilet h... | 06/19/1990 |
| 4922557 | Outdoor toilet holding tank ventilation system The waste material holding tank located within a portable, outdoor toilet cabana is vented to atmosphere by a vent pipe extending upwardly from the tank to the roof of the toilet cabana. A small, electrical blower fan is mounted upon the upper, open end o... | 05/08/1990 |
| 4894872 | Waterless sanitation system with ventilation A waterless sanitation system with ventilation. A toilet within a building is located over a pit having a solids holding basket suspendedly mounted within a liquids holding tank. A plurality of air inlet pipes extend externally of the building downwardly ... | 01/23/1990 |
| 4726078 | Toilet ventilation system A toilet ventilation generally comprised of an inventive toilet seat, a pre-filter, a water bleed-off means, an exhaust tubular member, and an electrically powered air extraction means. The inventive toilet seat rests directly on a toilet bowl rim and con... | 02/23/1988 |
| 4385912 | Apparatus for extracting liquid and foam from gas A liquid/gas separator for removing entrained liquid from a gas stream is mounted in the wall of a liquid holding tank and extends at least partially within the tank. The separator includes a gas circulation pathway and has a plurality of inlets through w... | 05/31/1983 |
| 4313234 | Toilet The disclosure relates to toilets of the kind which incorporate a waste-receiving tank or chamber in which decomposition of waste material takes place. In a preferred embodiment of the invention, the toilet includes an air-manifold assembly upon which was... | 02/02/1982 |
| 4254515 | Compost-type toilet equipment A compost-type toilet which includes: a solid-liquid separating means which also serves as a means for transferring the solid component of excrement mounted below the opening of a bowl; a means for treating the liquid component of excrement provided benea... | 03/10/1981 |
| 4196477 | Evaporative toilet The disclosure relates to toilets of the kind which incorporate a waste-receiving tank or chamber in which decomposition of waste material takes place. According to one aspect of the invention, the toilet includes an air-manifold assembly upon which waste... | 04/08/1980 |
| 4170798 | Apparatus for homogenizing and handling biowaste and other materials in isolation Apparatus to receive fecal material directly into a container and maintain it isolated, particularly as to its odors, while automatically homogenizing and withdrawing samples as may be desired and disposing of the remainder. The apparatus, either in fixed... | 10/16/1979 |
| 4153956 | Toilet deodorizer device A toilet deodorizer device having a flow inducing and odor removing assembly arrangeable in the upper portion of a toilet tank for drawing air from the rim portion of a toilet bowl associated with the tank upwardly through a conventional overflow pipe pro... | 05/15/1979 |
| 4145773 | Portable toilet with vent means for the holding tank Apparatus for venting a sealed holding tank of a portable toilet to equalize the atmosphere and tank pressures before opening and closing the inlet port of the holding tank, said holding tank including a valve assembly for opening and closing the inlet po... | 03/27/1979 |
| 4031574 | Timed ventilator for toilets A timed ventilator for toilets which mounts entirely within the toilet tank, and which operates from a battery power source to remove air from the toilet bowl and move the air through a charcoal filter for deodorizing. An external control includes an auto... | 06/28/1977 |
| 4017916 | Toilet ventilator including motion-responsive electrical transducer A ventilator for toilets is disclosed which includes an air duct to receive and remove the odorous air, an air suction device to establish the odorous air flow, a control for initiating and terminating the odorous air flow, and an electrical transducer re... | 04/19/1977 |
