US3763505A - Toilet ventilation device - Google Patents

Toilet ventilation device Download PDF

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US3763505A
US3763505A US3763505DA US3763505A US 3763505 A US3763505 A US 3763505A US 3763505D A US3763505D A US 3763505DA US 3763505 A US3763505 A US 3763505A
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casing
air
tank
toilet bowl
filters
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J Zimmerman
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J Zimmerman
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/04Special arrangement or operation of ventilating devices
    • E03D9/05Special arrangement or operation of ventilating devices ventilating the bowl
    • E03D9/052Special arrangement or operation of ventilating devices ventilating the bowl using incorporated fans

Abstract

In a toilet having a toilet bowl and a flush tank on the bowl in which an overflow pipe discharges overflow water into the toilet bowl and conducts obnoxious air and gases and odors from the toilet bowl into an air space above the water level in the tank, a ventilator casing which fits over the open top of the flush tank and bottom of the ventilator casing being substantially in the same proportions as the usual lid for the flush tank and it has an intake hole therethrough. A suitable blower or fan mounted on said bottom is located inside the casing. The walls of the casing are closed all around but are provided with charcoal filters for deodorizing and cleaning the air passing through the filters. The fan is driven by an electric motor from a suitable battery contained in the casing, and is controlled by a time switch so that the fan draws the air from the air space on the top of the tank and exhausts it through the filters. In a modified form a perforated hollow exhaust tube is placed either on the open top of the toilet bowl or on the toilet bowl cover with perforations in its inner periphery and is provided with a flexible connection into the casing of the ventilator capable of being set on the floor for directly drawing the air from the bowl and under the toilet seat into the casing and purifying it through the said filters. This separately located unit is also provided on one of its walls with compartments for magazines or the like.

Description

United States Patent 1 Zimmerman TOILET VENTILATION DEVICE [76] Inventor: Joseph P. Zimmerman, 3868 Shadowhill Dr., Santa Rosa, Calif.

22 Filed: Feb. 17,1972

21 Appl. No.: 227,499

[52] US. Cl 4/213, 4/72, 4/216 [51] Int. Cl A47k 3/22, E03d 9/04, E03d 13/00 [58] Field of Search 4/213-216, 72, 209, 100

[56] References Cited UNITED STATES PATENTS 3,366,979 2/1968 Johnston 4/213 2,388,990 1l/1945 Nelson et al.... 4/100 UX 2,100,962 11/1937 Juntunen 4/213 2,017,590 10/1935 Duffner 4/213 2,105,794 1/1938 Norris 4/213 2,778,033 1/1957 Majauskas 4/213 3,386,109 6/1968 Christian et a1. 4/213 3,495,282 2/1970 Taggart 4 213 3,585,651 6/1971 Cox 4/213 Primary Examiner-Henry K. Artis Attorney-George B. White [57] ABSTRACT In a toilet having a toilet bowl and a flush tank on the [451 Oct. 9, 1973 bowl in which an overflow pipe discharges overflow water into the toilet bowl and conducts obnoxious air and gases and odors from the toilet bowl into an air space above the water level in the tank, a ventilator casing which tits over the open top of the flush tank and bottom of the ventilator casing being substantially in the same proportions as the usual lid for the flush tank and it has an intake hole therethrough. A suitable blower or fan mounted on said bottom is located inside the casing. The walls of the easing are closed all around but are provided with charcoal filters for deodorizing and cleaning the air passing through the filters. The fan is driven by an electric motor from a suitable battery contained in the casing, and is controlled by a time switch so that the fan draws the air from the air space on the top of the tank and exhausts it through the filters. In a modified form a perforated hollow exhaust tube is placed either on the open top of the toilet bowl or on the toilet bowl cover with perforations in its inner periphery and is provided with a flexible connection into the casing of the ventilator capable of being set on the floor for directly drawing the air from the bowl and under the toilet seat into the casing and purifying it through the said filters. This separately located unit is also provided on one of its walls with compartments for magazines or the like.

2 Claims, 5 Drawing Figures PATENTED [ET 9 75 sum 1 or 2 1 TOILET VENTILATION DEVICE BACKGROUND OF THE INVENTION The previous devices for ventilating toilets required connections to vent pipes on the outside and therefore structural changes in the building, such as in US. Pat. No. 3,495,282 granted to Taggart on Feb. 17, 1970 or US. Pat. No. 2,371,923 granted to Sanford on Mar. 20, 1945.

In other prior devices structural changes had to be made either on the tank or on the toilet bowl or both as in US. Pat. No. 2,985,890 to Baither, granted on May 30, 1961. In an attempt to eliminate such structural changes to an outside vent or to the bowl, filtering unit was utilized in US. Pat. No. 3,087,168 of Huso, granted on Apr; 30, 1963, which alteration was necessary at the top of the flush tank in order to conduct air into a small filtering unit hung along one side of the flush tank.

An object of applicants herein invention is to provide a filtering unit which requires no structural alteration of the building, nor alteration of the toilet bowl, nor alteration of the tank, but which can be easily placed either on top of the flush tank in place of the usual lid, or it may be placed on the floor or some other support near the toilet bowl and by an intake placed on the top of the toilet bowl or secured to the underface of the toilet bowl cover, obnoxious odors in the air can be filtered out efficiently.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partly sectional perspective view showing a toilet bowl and flush tank with the ventilating unit on the top of the tank.

FIG. 2 is a perspective detail view of the ventilator on a somewhat enlarged scale.

FIG. 3 is a perspective view of a modified application of the ventilator.

FIG. 4 is a fragmental view showing the intake conduit mounted on the underface of the toilet seat cover.

FIG. 5 is a sectional top view of the ventilator with wiring diagram.

DETAILED DESCRIPTION The usual toilet bowl 1 has thereon a lid 2 which is provided with suitable hinges 3. A flush tank 4 is mounted in operative relation to the toilet bowl 1. In this illustration the flush tank 4 rests upon a bracket extension 6 of the toilet bowl 1. Inside of the flush tank 4 are the usual flush valves, the herein pertinent part of which is an overflow pipe 7 which is communicated through the usual conduits 8 and 9 to the usual spaces or perforations around the rim of the toilet bowl 1 so that obnoxious odors and air, after or before flushing the toilet, escapefrom the toilet bowl through the overflow conduit 7 the upper end 11 of which is above the water level in'the tank 4.

In the top of the tank and above the water level 12 is an air space 13 in which air is trapped under the usual lid on the top of the flush tank- 4.

The ventilator device includes a casing 14 which has a front wall 16, a rear wall 17, end walls 18, and a top 19. A bottom wall 21 is spaced above the lower edge 22 of the casing so that a flange 23 is formed all around below the bottom wall 21 which'fits on the top of the flush tank 4. It is preferable that the bottom wall 21 be made of slightly compressible material or provided with a suitable gasket around its edges to rest upon the upper edges of the flush tank 4.

A fan 26 is mounted on the bottom wall 21 so that the intake 27 thereof is aligned with or extends through a suitable intake aperture 28. The fan 26 is driven by an electric motor 29 which in turn is connected to a suitable battery 31. The electric circuit, as shown in FIG. 5, is controlled by an automatic time switch 32 of the usual type whereby a person can turn on the time switch 32 to the selected period of ventilation, and after the predetermined period the switch automatically breaks the circuit. In the alternative the power source 31 may be a suitable cord connection which may be plugged in in the house circuit.

As shown particularly in the sectional view in FIG. 5, the sides and ends of the casing are normally open and are formed by suitable charcoal filter sheets 33 which are covered with a suitable grid formed in the respective walls or ends. While in this illustration such charcoal filter sheets are shown on one side and the ends, it is understood that the same type of filter sheets may be utilized on all the sides of the casing 14.

In the form shown in FIG. 3, the flush tank may be remote or so located as to render the use of a casing on the top of the flush tank inconvenient, therefore the modified ventilator casing is provided with suitable legs 37 and the intake 38 is through one end of the ventilator casing 36. The intake of the fan 26 is suitably connected to the intake 38. In other respects this floor filter operates in the same manner as the filter at the top of the tank.

In the form shown in FIG. 3 a suitable manifold 39 in the form ofa ring is provided on the rim of the toilet seat 1. Vent holes 41 on the inside periphery of the manifold 39 provide intakes when the toilet seat 42 and the lid 2 cover the toilet bowl. An exhaust spout 43 of the manifold 39 is connected by flexible conduit 44 to the intake 38 of the ventilator.

In the form shown in FIG. 3 the back wall of the ventilator casing 36 is formed with suitable perpendicular shelves or compartments 46 in the fshion of a magazine rack.

In the form shown in FIG. 4 the manifold 49 is shown attached to the underface of the toilet seat 42 so that it may be lifted therewith.

THe aforesaid device is very convenient and it can be installed without any tools or without any structural alteration either of the walls of the house or of the parts of the toilet or the flush tank, and the device operates automatically for a preset period, and it fully eliminates all obnoxious odors and discharges the purified air in the room where the toilet is located, keeping thatroom odorless.

I claim:

1. A ventilator device for a toilet bowl and a flush tank having a vent from the bowl to the top of the tank, comprising a closed housing having a bottom, a top, and side walls,

said bottom being impervious to air and being spaced above the edges of the sides and ends of the housing, thereby to form a flange around the housing substantially fitting over the top of said flush tank and being adapted to seal the top edges of said flush tank,

certain of the side walls surrounding said housing having filter openings therethrough,

2. The invention specified in claim I, said forced air circulating means being clcctrically operated, and a time switch on one of said walls adapted to close the electric circuit for operating said forced air circulating means for a preset period.

Claims (2)

1. A ventilator device for a toilet bowl and a flush tank having a vent from the bowl to the top of the tank, comprising a closed housing having a bottom, a top, and side walls, said bottom being impervious to air and being spaced above the edges of the sides and ends of the housing, thereby to form a flange around the housing substantially fitting over the top of said flush tank and being adapted to seal the top edges of said flush tank, certain of the side walls surrounding said housing having filter openings therethrough, filters in said openings being capable of purifying and deodorizing air blown therethrough, means within the housing producing forced air circulation into said housing and out through said filters, and means to conduct air from said tank through said bottom to the intake of said forced air circulating means.
2. The invention specified in claim 1, said forced air circulating means being electrically operated, and a time switch on one of said walls adapted to close the electric circuit for operating said forced air circulating means for a preset period.
US3763505D 1972-02-17 1972-02-17 Toilet ventilation device Expired - Lifetime US3763505A (en)

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Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887948A (en) * 1972-10-06 1975-06-10 Robin Harry Stamper Conditioning device for deodorising and/or odourising air
US3939506A (en) * 1974-01-18 1976-02-24 Pearson Raymond H Odor control ventilator
US3942200A (en) * 1975-01-13 1976-03-09 Pearson Raymond H Odor control ventilator
US4031574A (en) * 1976-06-17 1977-06-28 Werner Frank D Timed ventilator for toilets
US4099047A (en) * 1976-11-19 1978-07-04 Kirkland Jr James R Commode ventilation system
US4153956A (en) * 1977-12-15 1979-05-15 Fischer Raymond C Jr Toilet deodorizer device
US4166298A (en) * 1976-02-20 1979-09-04 Pearson Raymond H Deodorizer for toilets
US4251888A (en) * 1979-04-20 1981-02-24 Turner William F Ventilating toilet seat
US4301555A (en) * 1980-05-27 1981-11-24 Poister Clarence E Replaceable filter for deodorizing the air from a toilet bowl
US4318192A (en) * 1979-10-31 1982-03-09 Williams Jack D Ventilated toilet
US4344194A (en) * 1980-12-12 1982-08-17 Pearson Raymond H Toilet seat and lid unit with concealed air deodorizer
US4402091A (en) * 1982-07-09 1983-09-06 Ellis William D Toilet evacuation device
US4494255A (en) * 1982-05-03 1985-01-22 Drummond Charles E Ventilated toilet device
US4583250A (en) * 1984-05-22 1986-04-22 Valarao Bonifacio C Device for the removal of foul air from toilet bowls
US4590629A (en) * 1984-07-27 1986-05-27 Lusk Leonard A Toilet ventilating device
US4876748A (en) * 1988-03-03 1989-10-31 Chun Duk K Toilet odor filter assembly
US5029346A (en) * 1990-05-15 1991-07-09 Fernald Sr Robert C Toilet bowl vent system
US5231705A (en) * 1992-03-24 1993-08-03 Peter Ragusa Method and apparatus for eliminating toilet odors
US5325544A (en) * 1992-11-27 1994-07-05 Busch Michael S Toilet flush tank and bowl air deodorizing apparatus
US5351344A (en) * 1992-08-20 1994-10-04 Phillips Rhudy F Fluid evacuation system
US5369813A (en) * 1993-12-10 1994-12-06 Goddard; Lewis W. Self-contained toilet venting system
US5369810A (en) * 1992-12-02 1994-12-06 Warren; H. Ray Malodorous air entrapment apparatus
US5519899A (en) * 1994-09-26 1996-05-28 Taylor; Raymond J. Toilet odor venting apparatus with improved retrofit capability
WO1996025134A1 (en) * 1995-02-17 1996-08-22 Renzo Vidali System and means for removing odour from bedpans
US5590423A (en) * 1995-12-13 1997-01-07 Boykin; Dwight L. Commode odor extractor
US5727262A (en) * 1994-07-29 1998-03-17 Littlejohn; George C. Bathroom ventilator
US5819324A (en) * 1996-08-09 1998-10-13 Bianco; Ronnie D. Toilet ventilating device
US6167576B1 (en) 1999-12-09 2001-01-02 Jimmie L. Sollami Ventilated toilet seat
US6298500B1 (en) 1996-12-19 2001-10-09 Jimmie L. Sollami Ventilated toilet seat
US6360377B2 (en) 1996-12-19 2002-03-26 Jimmie L. Sollami Filtration housing unit for use with a ventilated toilet seat
US6370702B1 (en) * 2000-09-26 2002-04-16 Harold E. Iddings, Sr. Toilet enclosure with ventilation system
US6694534B2 (en) * 2002-03-04 2004-02-24 Earlyn W. Stone Toilet ventilation system
US6804837B1 (en) 2003-09-09 2004-10-19 Guess Sr Robert L Odor transporter system for a toilet bowl
US20050015869A1 (en) * 2003-05-22 2005-01-27 Rudolf Boeckler Odor extracting water tank cover assembly and toilet comprising same
GB2407587A (en) * 2003-10-31 2005-05-04 Paul Clifford Green Toilet ventilation system
US6944888B1 (en) 2004-08-06 2005-09-20 Canales Jr Amador System for venting noxious fumes from a toilet
US20060195975A1 (en) * 2005-03-03 2006-09-07 David Kirby Filtered exhaust system for commode
US20060248634A1 (en) * 2005-05-09 2006-11-09 Sollami Jimmie L Ventilated toilet seat
US7275271B1 (en) 2003-10-07 2007-10-02 Smith Robert I Toilet evacuation system
US20070240250A1 (en) * 2006-04-18 2007-10-18 Lee Foerster Toilet odor removal system, assembly containing the same, and methods for odor removal
US20080086799A1 (en) * 2006-10-12 2008-04-17 Granush Bakhchadzyan Ultra fresh way toilet
US20080086800A1 (en) * 2006-10-12 2008-04-17 Entrekin Donald R Vented toilet seat
US20090056007A1 (en) * 2007-08-27 2009-03-05 Pham Hoang V Ventilation system for a toilet
US20090126089A1 (en) * 2007-10-31 2009-05-21 Lyle Smith Toilet ventilation system
GB2462166A (en) * 2008-06-25 2010-02-03 Washroom Wizard Ltd Centrifugal fan extraction system for a lavatory unit
US20120255110A1 (en) * 2011-04-05 2012-10-11 Chi Kao Ventilation system for toilet bowl
CN103362194A (en) * 2012-04-10 2013-10-23 印度卫生洁具与工业有限公司 Air freshener in water storage device
WO2013036106A3 (en) * 2011-09-09 2013-11-21 Q-Holding B.V. A toilet seat comprising a ventilator and a filter element, an element to be coupled to a seating element of a toilet seat, and a toilet comprising said toilet seat
US9499966B2 (en) 2014-12-31 2016-11-22 Wayne Darnell Internally vented toilet with dedicated exhaust system
CN106836415A (en) * 2015-12-04 2017-06-13 北京奇虎科技有限公司 Toilet seat and the exhaust gas treatment method based on toilet seat
US20170314247A1 (en) * 2016-04-28 2017-11-02 Lixil Corporation Sanitary apparatus
US9834918B2 (en) 2012-03-13 2017-12-05 Delta Faucet Company Toilet with overflow protection
US10139381B2 (en) * 2016-11-15 2018-11-27 David R. Hall Toilet for filtering and analyzing gas components of excretia
US10337181B2 (en) 2014-11-24 2019-07-02 Delta Faucet Company Toilet usage sensing system
US10383968B2 (en) 2015-12-29 2019-08-20 David Truong Jonathan Hobson Bathroom air purification and odor reduction system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2017590A (en) * 1933-11-02 1935-10-15 Carl A Duffner Air purifier
US2100962A (en) * 1936-09-09 1937-11-30 Juntunen Gust Ventilating apparatus for toilets
US2105794A (en) * 1937-02-08 1938-01-18 Charles C Norris Combination closet tank cover and ventilator
US2388990A (en) * 1942-07-25 1945-11-13 Sloan Valve Co Electrically operated flush valve
US2778033A (en) * 1955-07-11 1957-01-22 Charles J Majauskas Ventilator for water closets
US3366979A (en) * 1965-05-06 1968-02-06 Melvin I. Johnston Deodorizing apparatus
US3386109A (en) * 1966-03-02 1968-06-04 Christian Thomas Toilet deodorizing device
US3495282A (en) * 1967-11-16 1970-02-17 Allaird B Taggart Toilet bowl and exhaust device
US3585651A (en) * 1969-08-27 1971-06-22 Cox Corp The Odor remover for toilets

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2017590A (en) * 1933-11-02 1935-10-15 Carl A Duffner Air purifier
US2100962A (en) * 1936-09-09 1937-11-30 Juntunen Gust Ventilating apparatus for toilets
US2105794A (en) * 1937-02-08 1938-01-18 Charles C Norris Combination closet tank cover and ventilator
US2388990A (en) * 1942-07-25 1945-11-13 Sloan Valve Co Electrically operated flush valve
US2778033A (en) * 1955-07-11 1957-01-22 Charles J Majauskas Ventilator for water closets
US3366979A (en) * 1965-05-06 1968-02-06 Melvin I. Johnston Deodorizing apparatus
US3386109A (en) * 1966-03-02 1968-06-04 Christian Thomas Toilet deodorizing device
US3495282A (en) * 1967-11-16 1970-02-17 Allaird B Taggart Toilet bowl and exhaust device
US3585651A (en) * 1969-08-27 1971-06-22 Cox Corp The Odor remover for toilets

Cited By (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887948A (en) * 1972-10-06 1975-06-10 Robin Harry Stamper Conditioning device for deodorising and/or odourising air
US3939506A (en) * 1974-01-18 1976-02-24 Pearson Raymond H Odor control ventilator
US3942200A (en) * 1975-01-13 1976-03-09 Pearson Raymond H Odor control ventilator
US4166298A (en) * 1976-02-20 1979-09-04 Pearson Raymond H Deodorizer for toilets
US4031574A (en) * 1976-06-17 1977-06-28 Werner Frank D Timed ventilator for toilets
US4099047A (en) * 1976-11-19 1978-07-04 Kirkland Jr James R Commode ventilation system
US4153956A (en) * 1977-12-15 1979-05-15 Fischer Raymond C Jr Toilet deodorizer device
US4251888A (en) * 1979-04-20 1981-02-24 Turner William F Ventilating toilet seat
US4318192A (en) * 1979-10-31 1982-03-09 Williams Jack D Ventilated toilet
US4301555A (en) * 1980-05-27 1981-11-24 Poister Clarence E Replaceable filter for deodorizing the air from a toilet bowl
US4344194A (en) * 1980-12-12 1982-08-17 Pearson Raymond H Toilet seat and lid unit with concealed air deodorizer
US4494255A (en) * 1982-05-03 1985-01-22 Drummond Charles E Ventilated toilet device
US4402091A (en) * 1982-07-09 1983-09-06 Ellis William D Toilet evacuation device
US4583250A (en) * 1984-05-22 1986-04-22 Valarao Bonifacio C Device for the removal of foul air from toilet bowls
US4590629A (en) * 1984-07-27 1986-05-27 Lusk Leonard A Toilet ventilating device
US4876748A (en) * 1988-03-03 1989-10-31 Chun Duk K Toilet odor filter assembly
US5029346A (en) * 1990-05-15 1991-07-09 Fernald Sr Robert C Toilet bowl vent system
US5231705A (en) * 1992-03-24 1993-08-03 Peter Ragusa Method and apparatus for eliminating toilet odors
US5351344A (en) * 1992-08-20 1994-10-04 Phillips Rhudy F Fluid evacuation system
US5325544A (en) * 1992-11-27 1994-07-05 Busch Michael S Toilet flush tank and bowl air deodorizing apparatus
US5369810A (en) * 1992-12-02 1994-12-06 Warren; H. Ray Malodorous air entrapment apparatus
US5369813A (en) * 1993-12-10 1994-12-06 Goddard; Lewis W. Self-contained toilet venting system
US5727262A (en) * 1994-07-29 1998-03-17 Littlejohn; George C. Bathroom ventilator
US5519899A (en) * 1994-09-26 1996-05-28 Taylor; Raymond J. Toilet odor venting apparatus with improved retrofit capability
WO1996025134A1 (en) * 1995-02-17 1996-08-22 Renzo Vidali System and means for removing odour from bedpans
US5590423A (en) * 1995-12-13 1997-01-07 Boykin; Dwight L. Commode odor extractor
US5819324A (en) * 1996-08-09 1998-10-13 Bianco; Ronnie D. Toilet ventilating device
US6298500B1 (en) 1996-12-19 2001-10-09 Jimmie L. Sollami Ventilated toilet seat
US6360377B2 (en) 1996-12-19 2002-03-26 Jimmie L. Sollami Filtration housing unit for use with a ventilated toilet seat
US6167576B1 (en) 1999-12-09 2001-01-02 Jimmie L. Sollami Ventilated toilet seat
US6370702B1 (en) * 2000-09-26 2002-04-16 Harold E. Iddings, Sr. Toilet enclosure with ventilation system
US6694534B2 (en) * 2002-03-04 2004-02-24 Earlyn W. Stone Toilet ventilation system
US20050015869A1 (en) * 2003-05-22 2005-01-27 Rudolf Boeckler Odor extracting water tank cover assembly and toilet comprising same
US6804837B1 (en) 2003-09-09 2004-10-19 Guess Sr Robert L Odor transporter system for a toilet bowl
US7275271B1 (en) 2003-10-07 2007-10-02 Smith Robert I Toilet evacuation system
GB2407587B (en) * 2003-10-31 2008-04-23 Paul Clifford Green A toilet air flow freshening system
GB2407587A (en) * 2003-10-31 2005-05-04 Paul Clifford Green Toilet ventilation system
US6944888B1 (en) 2004-08-06 2005-09-20 Canales Jr Amador System for venting noxious fumes from a toilet
US20060195975A1 (en) * 2005-03-03 2006-09-07 David Kirby Filtered exhaust system for commode
US20060248634A1 (en) * 2005-05-09 2006-11-09 Sollami Jimmie L Ventilated toilet seat
US20070240250A1 (en) * 2006-04-18 2007-10-18 Lee Foerster Toilet odor removal system, assembly containing the same, and methods for odor removal
US20080086799A1 (en) * 2006-10-12 2008-04-17 Granush Bakhchadzyan Ultra fresh way toilet
US20080086800A1 (en) * 2006-10-12 2008-04-17 Entrekin Donald R Vented toilet seat
US20090056007A1 (en) * 2007-08-27 2009-03-05 Pham Hoang V Ventilation system for a toilet
US20090126089A1 (en) * 2007-10-31 2009-05-21 Lyle Smith Toilet ventilation system
GB2462166B (en) * 2008-06-25 2011-12-07 Washroom Wizard Ltd Lavatory systems
US20110138525A1 (en) * 2008-06-25 2011-06-16 Washroom-Wizard Ltd Lavatory Systems
GB2462166A (en) * 2008-06-25 2010-02-03 Washroom Wizard Ltd Centrifugal fan extraction system for a lavatory unit
US9957703B2 (en) 2008-06-25 2018-05-01 Washroom Wizard Ltd. Lavatory systems
US20120255110A1 (en) * 2011-04-05 2012-10-11 Chi Kao Ventilation system for toilet bowl
WO2013036106A3 (en) * 2011-09-09 2013-11-21 Q-Holding B.V. A toilet seat comprising a ventilator and a filter element, an element to be coupled to a seating element of a toilet seat, and a toilet comprising said toilet seat
US10221554B2 (en) 2012-03-13 2019-03-05 Delta Faucet Company Toilet with overflow protection
US9834918B2 (en) 2012-03-13 2017-12-05 Delta Faucet Company Toilet with overflow protection
CN103362194A (en) * 2012-04-10 2013-10-23 印度卫生洁具与工业有限公司 Air freshener in water storage device
US10337181B2 (en) 2014-11-24 2019-07-02 Delta Faucet Company Toilet usage sensing system
US9938705B2 (en) 2014-12-31 2018-04-10 Wayne Darnell Internally vented toilet with dedicated exhaust system
US9499966B2 (en) 2014-12-31 2016-11-22 Wayne Darnell Internally vented toilet with dedicated exhaust system
CN106836415A (en) * 2015-12-04 2017-06-13 北京奇虎科技有限公司 Toilet seat and the exhaust gas treatment method based on toilet seat
US10383968B2 (en) 2015-12-29 2019-08-20 David Truong Jonathan Hobson Bathroom air purification and odor reduction system
US10145094B2 (en) * 2016-04-28 2018-12-04 Lixil Corporation Sanitary apparatus with a hot air blower equipped with an ion generating device for disinfection, deodorization, or the like
US20170314247A1 (en) * 2016-04-28 2017-11-02 Lixil Corporation Sanitary apparatus
US10139381B2 (en) * 2016-11-15 2018-11-27 David R. Hall Toilet for filtering and analyzing gas components of excretia

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