Ventilated, I.e., Noxious Fume Removal Patents (Class 4/347)
  • Patent number: 9650774
    Abstract: The invention relates to an improved dual control mode-type deodorising and water drainage valve. The water drainage valve includes a linear control water drainage mechanism and a hydraulic water drainage mechanism controlled by a micro-immersible pump. The linear control water drainage mechanism includes a piston with the piston being partitioned into an upper and lower chamber by a central partition plate; the upper chamber is a piston control chamber for controlling the resetting of the piston, and the linear control water drainage mechanism controls the upward action of the piston; and the lower chamber is a water drainage fluid chamber for creating water pressure on the piston. More than one through hole is provided in the central partition plate to communicate with the upper and lower chambers partitioned by the central partition plate.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: May 16, 2017
    Assignee: Xiamen Huierjie Sanitary Ware Technology Co., Ltd.
    Inventors: Xiangji Zheng, Mingjin Chen, Hui Li
  • Publication number: 20140230136
    Abstract: A vent cover is described herein which may be used with various flush valve assemblies, particularly those acceptable for high efficiency and high performance toilets, which vent cover has a wall that includes an upper portion, a lower portion configured to define a vent cover inlet opening for receiving air and/or liquid passing upwardly from within a valve body and/or from within a toilet through a toilet inlet when the vent cover is installed on a valve body, an exterior surface, and an interior surface defining a vent cover passage for air passing upwardly from the vent cover inlet opening.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 21, 2014
    Applicant: AS IP Holdco, LLC
    Inventors: David Grover, Christophe Bucher, Sara Salahi
  • Patent number: 8709137
    Abstract: A method and an apparatus are provided for deodorizing and disinfecting air and droplets from urinal, toilet bowl, and other receivers and holders of urine and fecal matter. The apparatus comprises a housing (1) having an air inlet (2) and air outlet (3), wherein the housing (1) encloses a droplet removal chamber (4) for removing droplets from airflow; a deodorization and disinfection chamber (5) for removing air contaminants in the airflow; and an delivery unit (6) for airflow generation. Being actively drawn into the apparatus, air contaminants such as odor, bacteria and virus are removed without discharge of contaminated air and causing secondary pollution. The apparatus and method provide odorless and comfortable environment and avoid disease transmission in both public and domestic toilets.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: April 29, 2014
    Assignee: RHI Limited
    Inventors: Chi Keung Rudy Chan, Yee Lam Chan, Lam Lung Yeung, Ka Tung Ho
  • Publication number: 20130191984
    Abstract: This invention pertains to all residential and commercial flush toilets with or without water tank storage systems. An external exhaust system, which is activated by user, maintains constant suction in the bowl. A strategically sized and placed exhaust port is the only modification to the toilet bowl necessary to realize the previously stated objectives. This invention uses engineering hydraulic properties of water and air to achieve the toilet flushing and the removal of odorous air as it is created by human waste in the bowl. There are no electrical or mechanical devices added to the present art of the bowl construction, except the attic electric fan.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 1, 2013
    Inventor: James Monroe League
  • Publication number: 20130160197
    Abstract: An air ventilation apparatus for controlling foul odors around a toilet, the apparatus including a plurality of ducts disposed about the toilet for receiving air and a motorized means coupled to the ducts for directing foul air and airborne feces through said ducts. One duct carries water and solids into a sewage drain while air flow rises naturally and/or is pulled into an elongated vent by a motorized device (e.g., fan). The elongated vent runs substantially parallel to the duct and includes an opening in communication with the duct. A spring-based flapper valve prevents gases, water and/or solids from backing up into the toilet from duct.
    Type: Application
    Filed: May 14, 2012
    Publication date: June 27, 2013
    Inventor: John E. Conley
  • Patent number: 8424121
    Abstract: An odor extraction device (1) for a toilet having a pan (2) and a cistern (4) is disclosed. The extraction device (1) includes an inlet (3) and an outlet (5). The inlet (3) is adapted for gas communication with an interior of the toilet pan (2) above the water level in the pan (2). The outlet (5) is in gas communication with the inlet (3). The outlet (5) is also adapted for gas communication with a sewerage pipe (6). A suction means, in the form of an impeller fan (7), is provided intermediate the inlet (3) and the outlet (5) for drawing gas from within the pan (2) in through the inlet (3) and out through the outlet (5). To prevent backflow of unpleasant odors from the sewerage pipe (6) to the pan (2), a one way valve (8) is provided between the inlet (3) and the outlet (5).
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: April 23, 2013
    Inventor: Geoffrey Charles Quick
  • Publication number: 20130042399
    Abstract: Apparatus and method for reducing odor from a toilet bowl having an air cushion bladder seat with an orifice for passing air out of and into the bladder as a person sits down and rises from the air cushion bladder seat which is coupled to operate a switching valve. The switching valve has a first tube that connects the area above the water in the bowl to a second tube coupled to a gas/vapor moving means and disconnects a third tube that connects the toilet trap from the second tube as a person sits down on the air cushion bladder seat. The gas/vapor moving means is coupled to the second tube which to feed the gas/vapor to a fuel/air mixer of a combustion chamber for burning the gas/vapor with the fuel.
    Type: Application
    Filed: August 17, 2011
    Publication date: February 21, 2013
    Inventors: Robert Fred Smith, Will Dexter Ball, IV
  • Publication number: 20120260414
    Abstract: Disclosed is a chamber pot having an apparatus for exhausting bad smell which makes it possible to effectively remove bad smell in such a way that a bad smell rising from the interior of a chamber pot is sucked by way of a fluid spray hole during defecation and is exhausted by way of a fluid discharge passage, thus effectively eliminating bad smell.
    Type: Application
    Filed: October 25, 2010
    Publication date: October 18, 2012
    Inventor: Mi-Ja Lee
  • Patent number: 8286272
    Abstract: In a toilet seat having suctioning of air from the toilet bowl, an advantageous air flow is achieved in the toilet seat by means of the arrangement of elongated suction ports on both sides of the longitudinal center line of the seat.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: October 16, 2012
    Inventor: Raymond Lüdi
  • Publication number: 20120227171
    Abstract: Disclosed is a “magical” toilet seat that draws air from inside a toilet bowl into an air box for filtration and disinfection. The toilet seat operably possesses orifices on its underside that are in fluid communication with the air box when the seat is in a down position.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 13, 2012
    Inventor: Joseph Jesus Lopez
  • Publication number: 20120227170
    Abstract: A venting attachment for a toilet comprises a main body shaped similar to a toilet seat. The main body has a bottom, an inner wall and outer wall, which together define a channel, a frontal portion at a front end and frangible break line formations. The inner wall has a plurality of apertures defined therein in fluid communication with the channel. The outer wall has at least one vacuum port which is in fluid communication with the channel. The break line formations enable the frontal portion to be severed from a major rear portion of the main body. The attachment with or without the frontal portion can be mounted on the underside of the toilet seat. The frontal portion can be severed from the major rear portion when the toilet seat is open at its front end.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 13, 2012
    Inventors: Leonard Ineson, Norman Ineson
  • Patent number: 8196232
    Abstract: An exhaust unit for a hanging toilet bowl is described, and includes a house with a back wall and a front wall, two exhaust coupling tubes extending in the house from the front wall to the back wall and having a first end projecting outside the house back wall. The first end of a second exhaust coupling tube can have a diameter that is larger than the diameter of the first end of a first exhaust coupling tube. At its second end, the first exhaust coupling tube can be provided with a sealing ring arranged in a groove-shaped recess of the inner wall. At its second end, the second exhaust coupling tube can provided with a sealing ring arranged in a groove-shaped recess of the inner wall.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: June 12, 2012
    Assignee: Trivio Invest B.V.
    Inventors: Petrus Joannes Wilhelmus Van Herp, Johannes Hermanus Petrus Maria Oonk, Tijmen Karel Jan Boogers
  • Patent number: 8037553
    Abstract: The present invention provides a toilet and/or a toilet and bidet combination having immediate reflush capability. Preferred embodiments comprise a tankless toilet and/or toilet and bidet combination and a bowl ventilation apparatus integrated therein. The tankless nature of the invention saves space over conventional toilets, allowing closer mounting to the wall and a lower vertical profile. More specifically, certain embodiments of the present invention comprise a motorized flush mechanism with an infrared sensor having immediate reflush capability, a on-demand motorized water spray cleansing system integrated therein and an integrated bowl ventilation apparatus with a proximity sensor.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: October 18, 2011
    Inventor: Derrick Ware
  • Patent number: 7730560
    Abstract: The present invention provides an odorless toilet comprising an adapter ring compressed between a toilet horn and a sewer pipe flange and having a hollow core, an adapter inlet and an exhaust vent; a seat having at least one intake port, a gas cavity and a gas cavity exhaust port; a fan having a fan inlet and a fan exhaust, the fan inlet connected to the gas cavity exhaust port and the fan exhaust connected to the adapter inlet, wherein when the fan is operating, a negative pressure develops in the seat gas cavity, and the odor is pulled into the seat gas cavity through at least one intake port and exhausted from the gas cavity exhaust port to the adapter inlet and then channeled into a sewer pipe through the exhaust vent, wherein the exhaust vent of the adapter ring extends below the sewer pipe flange, wherein the adapter ring has an opening through the center to allow unobstructed passage of waste matter from the toilet horn to a sewer pipe when the toilet is flushed.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: June 8, 2010
    Inventor: Viktor Markaj
  • Publication number: 20100088813
    Abstract: An air suction device for a toilet drainage channel, capable of good and silent toilet flushing. The air suction device (200) for the toilet drainage channel (5) has air suction means for sucking air from the toilet drainage channel (5) connected to the downstream side of a water sealing part (4) of a toilet body (1). The air suction means has an ejector (30) serving as a negative pressure generator and also has a suction tank (80) connected between the ejector (30) and the toilet drainage channel (5). The air suction device (200) further has a control device (C) for controlling both execution of a suction stroke in which the suction tank (80) exhausts air into the toilet drainage channel (5). The control device (C) executes the air suction stroke after the start of the supply of flush water to the bowl (2) of the toilet body (1) and then executes the air exhaust stroke before the completion of the supply of the flush water to the bowl (2).
    Type: Application
    Filed: March 25, 2008
    Publication date: April 15, 2010
    Applicant: INAX CORPORATION
    Inventors: Naokazu Onishi, Ken Higuchi, Masafumi Fukagawa, Keisuke Hiraide, Yuji Saito
  • Publication number: 20100077543
    Abstract: The present invention provides an exhaustible toilet and odor removal system with integrated components.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventor: Scott E. Hofmann
  • Publication number: 20100011495
    Abstract: The invention relates to a flap unit (1) for fitting into a flap opening, which allows access to a luggage or service compartment, in the wall of a camping vehicle. Said unit comprises a flap frame (3) and a flap (2) that is pivotally mounted on said frame and the flap frame preferably consists of a first frame part (5), which borders the flap opening on the vehicle interior and a second frame part (6), which borders the flap opening on the vehicle exterior, in such a way that the first and second frame part (5, 6) interlock when mounted. One frame part (6) has a connection (11) for coupling a ventilation or water supply or drainage line on the vehicle interior and said connection (11) can be linked to the external surroundings of the vehicle in such a way that the line coupled to the connection comes into contact with said surroundings through at least said frame part (6).
    Type: Application
    Filed: February 22, 2008
    Publication date: January 21, 2010
    Applicant: DOMETIC GMBH
    Inventors: Reinhard Neubauer, Frank Wunderlich
  • Publication number: 20090070924
    Abstract: A toilet having improved flush capabilities, an electrical system for foul air evacuation including bacterial filtration, a storage compartment, a night-light, improved waste disposal, and optional accessories for converting the toilet into a medical work-station for ease of use by patients who may have special requirements and/or needs.
    Type: Application
    Filed: November 12, 2008
    Publication date: March 19, 2009
    Inventor: Robert D. Montgomery
  • Publication number: 20090056007
    Abstract: A ventilation system for a toilet includes a scented filter disposed in either the toilet tank or a housing mounted directly behind the toilet tank and which is in flow communication with a fan so that the fan can draw unpleasant and noxious odors from the toilet for filtering through the scented filter and then discharge up through a stack pipe. A motion detecting sensor is electrically interconnected with the fan for automatically actuating the fan after a predetermined timed delay following an individual's use of the toilet, or the system can include a manually operable switch for engaging the fan after use of the toilet for ventilating the toilet and externally discharging the unpleasant and noxious odors.
    Type: Application
    Filed: August 27, 2007
    Publication date: March 5, 2009
    Inventor: Hoang V. Pham
  • Patent number: 6772449
    Abstract: 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 is rotatably secured to the manifold by hinges having a passageway for communicating air from the toilet seat to the inlet of the manifold. The mounting fixtures have a passageway for communicating air from the outlet of the manifold to an exhaust conduit. The toilet seat cover has hinges for connecting the toilet seat cover to the manifold in a fixed manner. Pivoting the toilet cover between a horizontal position and a vertical position causes the manifold to rotate within the toilet seat hinges and the mounting fixtures.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: August 10, 2004
    Inventor: John P. Wolfe
  • Patent number: 6760928
    Abstract: 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 the vent passage and the conduit, thereby exhausting air away from the toilet. Low volume and air flow rates are employed to effectively and quietly remove objectionable odors from the toilet area during use. An inlet screen may be positioned over the inlet end of the vent passage. The fan power may be controlled with a seat-activated switch. The conduit may be a corrugated hose.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: July 13, 2004
    Inventor: Cirilo Rodriguez
  • Patent number: 6749805
    Abstract: 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 foul air from a toilet or another environment. The device is powered by a battery or a household current.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: June 15, 2004
    Assignee: S L Parkhurst Corporation
    Inventors: Stephen L. Parkhurst, Morey E. Osborn
  • Patent number: 6735790
    Abstract: 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 plastic material having an inner diameter substantially equal to the outer diameter of the vent stack of a holding tank. The cap includes an inwardly extending annular lip formed at one end. A circular mesh of plastic screen material is secured within the tubular sleeve between the annular lip and a plastic locking ring received within the tubular sleeve.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: May 18, 2004
    Inventors: Donald V. Willson, June Willson
  • Patent number: 6694534
    Abstract: 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 (50) with a fan (60) therein, and an electrical circuit (70) powering a fan (60) when a circuit (70) is activated. The duct (50) receives a bowl filling hose (166) and attaches to a top end (172) of a bowl fill pipe (170) so as to receive air from a bowl (120). A float switch (80) may deactivate a fan circuit (70) after flushing.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: February 24, 2004
    Inventor: Earlyn W. Stone
  • Patent number: 6678900
    Abstract: 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 toilet bowl region into the intake duct and then through the hose, a dispensing unit with a filter for treating air that receives the air drawn from the toilet bowl by the vacuum for creating a vacuum; and one or more switches for activating the apparatus. The toilet bowl ventilation apparatus can have a proximity sensor that can detect the presence of a person proximal to the toilet.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: January 20, 2004
    Inventor: Derrick Ware
  • Patent number: 6643850
    Abstract: 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 liquid is located on a first one of the filter elements.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: November 11, 2003
    Assignee: HP Intellectual Corp.
    Inventors: James E. Chasen, David O'Connor, Don Sheelen, Paul J. Donoski, Eric J. Price, David Connery
  • Patent number: 6550072
    Abstract: 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 hose, filters and/or air fresheners for treating air that receives the air drawn from the toilet bowl by the vacuum; and one or more switches for activating the apparatus.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: April 22, 2003
    Inventor: Derrick Ware
  • Patent number: 6351855
    Abstract: 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 device includes a housing having a first generally longitudinally disposed chamber extending inwardly from a first open surface in a bottom portion of the housing and of a size and configuration to removably receive the overflow tube and terminating into an upper interior surface portion. A second generally longitudinally is disposed chamber communicating with the upper interior surface portion and terminating into a lower interior surface portion of the housing and a third generally longitudinally is disposed chamber communicating with the lower interior surface portion and terminates into a second open surface in an upper portion of the housing.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: March 5, 2002
    Inventor: Larry F. Allen
  • Publication number: 20010027571
    Abstract: The flushing device comprises a flush bowl (1) comprising an odor trap (8) on a bottom part (7) and comprises a flushing conduit (2) with flushing openings (14, 15, 16) on an upper edge (3). Flushing openings (14) in a frontal area (13) of the flushing conduit (2) have a greater throughput than laterally arranged flushing openings (15, 16) do. The flushing openings (4) in said frontal area (13) are arranged in an asymmetric manner and the flushing water (17) forms a flushing vortex (17c) in the bowl (11). The flushing device makes it possible to effectively flush with less flushing water.
    Type: Application
    Filed: May 22, 2000
    Publication date: October 11, 2001
    Inventor: Peter Schmucki
  • Patent number: 6295656
    Abstract: 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 through apertures in the bowl rim. A motor driven fan extracts the gases through the upper insert and forces the gases along the lower insert into the sewer. The fan is remotely activated. Flushing the toilet disables the fan until reactuated following flushing.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: October 2, 2001
    Inventor: Bruce Tillen
  • Patent number: 6247191
    Abstract: 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 vent is connected between the toilet room and the insulated compartment. A suction line located at an opposed position in the insulated compartment is used to direct the flow of air from the toilet room, through the insulated compartment around the treatment tank, to the locomotive exterior. By eliminating the need for heat tracing of the treatment tank, this invention reduces the cost and energy usage of the locomotive sanitary system.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: June 19, 2001
    Assignee: General Electric Company
    Inventors: Gail L. Detar, Anne K. Eisert, Todd M. Kindel, Lamar K. Ledbetter
  • Patent number: 6202226
    Abstract: 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 collection apparatus comprises: an upright tube having an upper end portion, a central portion adapted to receive a flexible hose, and a lower portion adapted to seat on a supporting surface; a hood carried by and above the upper portion of the upright tube, adapted to peripherally surround and cover the exhaust intake on the ceiling; and, a first flexible hose having a feed end portion adapted to removably attach to the central portion of the upright tube and a collection end which may be routed proximate to a source of waste odor. Another aspect of this apparatus provides for an odor collection wand which is used in conjunction with the flexible hose connected to the exhaust intake.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: March 20, 2001
    Inventor: Albert Glenn Shoptaugh
  • Patent number: 5555572
    Abstract: 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, with the odor collector and the neck supporting the filter assembly adjacent the toilet bowl. The odor collector includes a base attachable to the toilet bowl, an air intake carried by the base and positionable adjacent an interior of the toilet bowl, and a sleeve carried by the base in gaseous communication with the air intake. The filter assembly includes an air duct, an impeller assembly for providing air flow through the apparatus, the air duct is coupled to the filter assembly, and a filter is carried between the impeller assembly and the air duct.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 17, 1996
    Inventor: Clyde J. Hunnicutt, Jr.
  • Patent number: 5539937
    Abstract: 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 motorized fan. A battery housed within the seat energizes the fan which draws foul air from the bowl through a filter for deodorization. Lid vertical instability is overcome through the combination of lid coupling valve (30) and pintles (28) which provides independent and separate seat and lid hinging systems.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: July 30, 1996
    Inventor: Russell E. Barefoot
  • Patent number: 5488741
    Abstract: 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, with the odor collector and the neck supporting the filter assembly adjacent the toilet bowl. The odor collector includes a base attachable to the toilet bowl, an air intake carried by the base and positionable adjacent an interior of the toilet bowl, and a sleeve carried by the base in gaseous communication with the air intake. The filter assembly includes an air duct, an impeller assembly for providing air flow through the apparatus, the air duct is coupled to the filter assembly, and a filter is carried between the impeller assembly and the air duct.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: February 6, 1996
    Inventor: Clyde J. Hunnicutt, Jr.
  • Patent number: 5369812
    Abstract: 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 proximate an opening (20) into the toilet bowl (12) of the toilet assembly (10). An air extraction fan (72) is coupled to the air intake mechanism (42) for extracting air (13). A fluid removal mechanism (46) integrally coupled to the air intake mechanism (42) substantially removes trapped fluid (15) undesirably collected by the intake mechanism (42) during air extraction. The fluid removal mechanism (46) comprises a plurality of fluid collection troughs (66) communicably coupled to a plurality of intake apertures (56) situated about the intake mechanism (42). An actuating mechanism (100) is operably coupled to the air extracting fan (72) for automatically controlling the operation of the ventilation apparatus (40).
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: December 6, 1994
    Inventor: Ronald W. Trombley
  • Patent number: 5305472
    Abstract: 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 shut off valve is mounted adjacent the back of the tank and is actuated concomitantly with the rising and lowering of the water level to cut off the air flow from the toilet. An additional valve is also mounted adjacent the tank to act in opposition to the shut-off valve and provide relief from the vacuum created from the drop of the water level during flushing. A release valve is adjacent the vacuum motor to draw air from an air source alternative to the toilet, when the shut-off valve is activated.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: April 26, 1994
    Inventor: Leroy O. Eger
  • Patent number: 5259072
    Abstract: 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 proximate an opening (20) into the toilet bowl (12) of the toilet assembly (10). An air extraction fan (72) is coupled to the air intake mechanism (42) for extracting air (13). A fluid removal mechanism (46) integrally coupled to the air intake mechanism (42) substantially removes trapped fluid (15) undesirably collected by the intake mechanism (42) during air extraction. The fluid removal mechanism (46) comprises a plurality of fluid collection troughs (66) communicably coupled to a plurality of intake apertures (56) situated about the intake mechanism (42). An actuating mechanism (100) is operably coupled to the air extracting fan (72) for automatically controlling the operation of the ventilation apparatus (40).
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: November 9, 1993
    Inventor: Ronald W. Trombley
  • Patent number: 5231705
    Abstract: 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 connected to the air intake port by a suction tubing. A charcoal filter is connected to the suction pump assembly. The suction pump assembly passes the odoriferous air through the charcoal filter prior to exhausting the filtered air into an exhaust tubing which releases the filtered air into the overflow tube. Also disclosed is a method of deodorizing gaseous odors and recirculating the deodorized air in a toilet having a bowl, a tank, and an overflow tube. Odoriferous air is sucked in and removed from the toilet bowl and then filtered and deodorized. The filtered and deodorized air is released into the overflow tube in the tank.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: August 3, 1993
    Inventor: Peter Ragusa
  • Patent number: 5123124
    Abstract: 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 position covering the seat and sealing the bowl. When the lid is raised, an air extraction system removes air and odors from the bowl. After use, the lid is either manually or automatically closed, initiating a high or low flush. When left to close automatically a low flush only is initiated. In a low flush, water is directed under pressure through two rotating spray jets against the bowl interior, then is removed along with any toilet contents by the rotating jets action and the macerator which reduces solids to small particles. Heated air is then directed into the bowl to dry the bowl. In a high flush, an additional spray jet cleans the seat and a larger quantity (typically 1/3 additional) of water is used.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: June 23, 1992
    Inventor: Richard Brower
  • Patent number: 5016294
    Abstract: 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 rim of the toilet bowl of a conventional toilet. The toilet seat adapter unit includes a flat plastic plate having a shape and dimension generally conforming to those of the toilet seat. The lower surface of the flat plate is placed on the upper surface of the rim of the toilet bowl. A first set of plastic clips, affixed to the lower surface of the flat plate, fits around the outer edge of the rim of the toilet bowl and prevents the flat plate from slipping on the upper surface of the rim. A flexible plastic hose is looped around the upper surface of the flat plate and held in place by a second set of plastic clips. The hose communicates with a vacuum pump or exhaust fan.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: May 21, 1991
    Inventor: Enrique A. Canovas
  • Patent number: 4984310
    Abstract: 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 the outer periphery of the seat.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: January 15, 1991
    Inventor: Enzo Casale
  • Patent number: 4944045
    Abstract: 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 toilet bowl drops below a predetermined quantity, the fan and motor unit is stopped, and such unit is started only when methane is present in such predetermined quantity.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: July 31, 1990
    Inventors: Dionisios Agelatos, Sortirios Agelatos
  • Patent number: 4933995
    Abstract: 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 has been flushed, and when the float rises up again to the normal full-tank water level, the switch is thrown again and the fan is deactivated.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: June 19, 1990
    Inventor: Carl E. Canon
  • Patent number: 4922557
    Abstract: 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 of the vent pipe for sucking air from the holding tank and blowing the air to outside atmosphere. A solar energy panel is mounted upon the roof of the cabana near the fan and is electrically connected to the fan. The panel generates electrical energy in response to a predetermined level of sunlight for electrically energizing the fan. Thus, the fan circulates air through the holding tank during the items that the sun is shining upon the cabana, to reduce the solar heat build-up in the holding tank for reducing the generation of noxious odors caused by heat induced reactions in the waste material in the tank.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: May 8, 1990
    Assignee: Poly-John Enterprises Corp.
    Inventors: George W. Harding, Rodney M. Mullett
  • Patent number: 4894872
    Abstract: 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 through the basket and into the liquids holding tank with a plurality of apertures provided on the pipes allowing the air to enter both the basket and tank. An exit pipe extends upwardly from the tank through the basket and through the roof of the building. A plurality of apertures in the exit pipe allow the gas within the tank and basket to escape. An exhaust fan is provided to pull the air downwardly through the inlet pipes and the gas outwardly through the exhaust pipe. The inlet pipes have mouths oriented to catch the wind assisting the flow of air.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: January 23, 1990
    Assignee: Outdoor Sanitation Corp.
    Inventors: Charles M. Anderson, Jr., Stephen C. Cline
  • Patent number: 4726078
    Abstract: 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 contains a plurality of ducts within the toilet seat. The series of ducts guide the odorous air toward the air extraction means. A water bleed-off means is implemented to trap moisture suspended in the odorous air and to prevent the moisture from entering the exhaust tubular member and the air extraction means thereby increasing the expected life of the ventilation system.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: February 23, 1988
    Inventors: Rodolfo A. Carballo, Ermidia Carballo
  • Patent number: 4385912
    Abstract: 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 which the gas stream enters the circulation pathway. The inlets are arranged to impart a curved direction of flow to the gas stream. A fluid collection plate extends from the gas circulation pathway and is in fluid communication with it. The liquid collection plate is conical and provides a path of decreasing radius for the gas stream. The swirling motion of the stream over the collection plate causes a major portion of the liquid to separate from the gas and collect on the plate surface. The liquid collection plate has an opening formed therein through which the liquid can drain into the tank.
    Type: Grant
    Filed: September 30, 1981
    Date of Patent: May 31, 1983
    Assignee: The Boeing Company
    Inventors: C. Earl Parrick, Forrest B. Busching
  • Patent number: 4313234
    Abstract: 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 waste material collects and which receives heated air for removing moisture from the waste material by evaporation, and perforate baffle means which define air spaces laterally of the mass of waste material, into which heated air can pass for improving efficiency of moisture evaporation. A fan unit is provided for circulating heated air through the air manifold assembly and is readily removable from externally of the toilet housing for facilitating servicing of the toilet.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: February 2, 1982
    Assignee: Santerra Industries Ltd.
    Inventor: John M. Stewart
  • Patent number: 4254515
    Abstract: 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 beneath the solid-liquid separating means. The liquid component treating means contains various kinds of adsorbent materials capable of adsorbing the liquid component separated by the above mentioned solid-liquid separating means and the inner structure is so constructed as to enhance the air ventilation to vaporize or volatilize the liquid component adsorbed with the adsorbent materials; a means for treating the solid component of excrement is provided in a position adjacent to the solid-liquid separating means in the transferring direction to the solid component separated by the above mentioned solid-liquid separating means.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: March 10, 1981
    Inventors: Torao Kiyama, Satoshi Kiyama