US2575778A - Ventilated toilet - Google Patents

Ventilated toilet Download PDF

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Publication number
US2575778A
US2575778A US611755A US61175545A US2575778A US 2575778 A US2575778 A US 2575778A US 611755 A US611755 A US 611755A US 61175545 A US61175545 A US 61175545A US 2575778 A US2575778 A US 2575778A
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Prior art keywords
water
bowl
trap
tank
fan
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Expired - Lifetime
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US611755A
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Theodore R Wilson
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Theodore R Wilson
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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

Description

Nov. 20, 1951 T. R. WILSON 7 VENTILATED TO'ILET I 7 Filed Aug. 21, 1945 2 SHEETS-SHEET 2 INVENTOR. Theodore R M [6017 A .TTORNEY Patented Nov. 20, 1951 UNITED STATES PATENT OFFICE VENTILATEDI TOILET TheodorerR. Wilson,uSeattle,;' Wash.

Application AugustJZl, 1945; Serial No."611;755 23Glaims. (01. 4-213) The present invention relates to a ventilated toilet.

In the priorart'there' havebeen many devices for the ventilation-of toilet bowlsjbut most of these have taken the air fromithevtoilet bowl by means of specia1-openings, or have taken the air in from under the toilet seat, and have discharged such air into the building wall or through a special connection into the ventilating stack of the plumbing.

The use of'specialopenings into the toilet bowl is undesirable, asthey are unsightly and difficult to keep "clean. The use of 7 a separate-connection to the buildin wall or to' the ventilating stack is undesirabla as it requires special work on the job which materially increases the cost of installation, and --in many "cases allows "the back flow of gases.

Having in mind these defects of the prior art,

it is an object of the present invention to devise a ventilating system for a toilet bowl which will use the openings already present for the inlet of water, as the openings through which air may be removed from the bowl.

A further object of the present invention is the devising of means for' discharging the air removed from the toilet bowl into the outlet of the bowl.

The above mentioned defects of the prior art are remedied and these objects attained by removing air from the toilet bowl through the water inlet opening, taking this air above the water level in the toilet tank so that the air duct will not be flooded, passing this air through a fan, and discharging it through a water trap into the outlet of the bowl.

A device embodying the present invention is shown in the accompanying drawings, in which:

Fig. 1 is a section in elevation of a toilet bowl and tank embodying the present invention;

Fig. 2 is a section on the line 2-2 of Fig. 1;

Fig. 3 is a wiring diagram for the fan motor.

In Fig. 1 there is shown a toilet bowl I, provided at its upper side with a water ring 2, having formed therein water inlets 3. The bottom of the bowl is shaped to form an outlet trap 4 in the entrance 5 of the bowl outlet conduit 6 which has an exit 7. The inlets 3 of the bowl connect through an inlet conduit 8 with a water storage tank 9, whose outlet is controlled by the conventional ball and associated operating means I0. Connected to the bowl inlet conduit 8 is an air duct II, which extends upwardly to a point I2 well above the normal level of the water in the tank, and then downwardly to a fan I3 actuated by motor I4. From the fan l3 the-air duct H extends downwardly through a water trap I5 and into the'outlet conduit 6. Thelower end of the air duct II is between the bowltrap 4 and the exitl of the bowl outlet conduit. A by-pass drain Hiprovides a means for supplying water from the inlet conduit 8 to the'water trap I5. The tank 9 is provided with an overflow opening H.

The bowl is provided with a seat 2!] which is hinged at 2| to the hingesupport arm 22. -As shown in Fig. 2, there are two hinge support arms 22, which extend downwardly through a portion'ofthe bowl. The support arms 22 are supported in rubber mountings23 and 24. The lower ends 25 of" the support arms are connected bymeans of*a-yoke26to an electrical contact 27 which cooperates =withafixed contact 28. These contacts control the operation of the motor I4. The contacts 21 and 28 are associated in. a suitable manner with a source of power. The contacts 21, 28, may be arranged in parallel with a wall switch 29 to obtain optional control.

The above device will operate as follows: with the water tank full and the trap full as shown, and a load placed on the seat 20, part of this load will be transmitted to the hinge 2I and, thus, to the arm 22. This load will tip the arm 22 downwardly and force the lower end 25 of the arm to the left of the position shown in Fig. 1. This movement of the end of the arm 25 to the left will carry with it the yoke 26 which. will in turn close the contacts 21, 28 and set the motor I4 and fan I3 into operation. Operation of the fan I3 will draw air through the water inlet openings 3, through the inlet conduit 8, the air duct II, through the trap I5 and into the outlet conduit 6 of the bowl I. When the.load is removed from the seat 20, the fan will ceas operation. Operation of the fan I3 may be made continuous by actuation of the parallel switch 29. The toilet may be flushed when the fan is running or when it is not running, and in either case water will not be drawn through the air duct E! into the fan. This is so not only because of the height to which the duct II is carried above the normal level of the water in the tank 9, but also because the overflow opening I! serves to relieve the pressure in the duct II, and to balance the water level in the tank with that in the duct I I. When water from the tank 9 flows through the inlet conduit 8, a portion of this water will flow through the by-pass I6 and serve to maintain the water level in the water trap I5.

The water trap I5 prevents sewer gas from passing backwardly through the duct II when the fan is not in operation. It is also to be noted that the relative dimensions of the trap and the portion of the duct I I immediately above the trap is such that back pressure on the trap will establish a relatively high head, several inches of water in the duct l 1, before gas can pass under the lip of the trap. At the same time the trap offers but slight resistance to the forward passage of air. This use of a differential water trap in the duct H is important, for the purpose of keeping a low pressure head on the fan and establishing a high head against back pressures.

From the above description, it will be seen that this device will remove air from toilet bowls and discharge it into the sewer drain without the need of special connections or construction other than that coming with the toilet bowl and tank as a unit.

Having thus described my invention, I claim:

1. A toilet, having: a water supply tank and a toilet bowl, a water inlet conduit connecting said tank and bowl, an outlet conduit from said bowl, an outlet trap in the entrance of said outlet conduit, an air duct connecting said inlet conduit with said outlet conduit between said outlet trap and the exit of said outlet conduit, said duct having a rising and a descending portion thereof above the normal level of the water in said tank,

2. A toilet, having: a water tank, a toilet bowl, a seat for said bowl, a water inlet connecting said tank and bowl, an outlet conduit from said bowl, an outlet trap in the entrance of said outlet conduit, an air duct connecting said inlet conduit with said outlet conduit between said outlet trap and the exit of said outlet conduit, said duct having a rising and a descending portion thereof above the normal level of water in said tank, formed in said rising portion a vent communicating with said tank, a water trap in said duct, a fan in said duct between said descending portion and said water trap, and below said water inlet, a by-pass drain around said fan and between said inlet conduit and said water trap for supplying water to said trap, and a switch operated by a load on said seat for actuating said fan; whereby said fan may take air from said inlet conduit and discharge such into said outlet conduit While such load is on said seat. THEODORE R. WILSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS

US611755A 1945-08-21 1945-08-21 Ventilated toilet Expired - Lifetime US2575778A (en)

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2824313A (en) * 1954-05-20 1958-02-25 Richard L Bulow Electric toilet seat exhaust ventilator
US3534415A (en) * 1965-05-05 1970-10-20 Robert G Huffman Automatic ventilating system for sanitary toilets
US3681790A (en) * 1970-06-15 1972-08-08 John Dooley Ventilated water closets automatically affording protection of its ventilating means from water damage
US3703010A (en) * 1970-05-12 1972-11-21 Dale F Russell Ventilated toilet
US3805304A (en) * 1971-07-01 1974-04-23 N Ikehata Ventilating toilet
US4011608A (en) * 1974-01-18 1977-03-15 Pearson Raymond H Electric toilet deodorizer
US4094023A (en) * 1975-12-11 1978-06-13 Smith Donald L Ventilated toilet seat
US4165544A (en) * 1978-05-15 1979-08-28 Barry Bill H Odorless toilet stool
US4318192A (en) * 1979-10-31 1982-03-09 Williams Jack D Ventilated toilet
DE3526587A1 (en) * 1985-07-25 1987-02-05 Heinrich Menge Device for controlling at least one gas flow
US4880027A (en) * 1986-12-17 1989-11-14 Heinrich Menge Method of and apparatus for regulating the flow of at least one gas stream
US4933996A (en) * 1989-05-25 1990-06-19 Sowards Edward W Toilet deodorizer
US4993083A (en) * 1990-06-18 1991-02-19 Lemieux Charles E Ventilated toilet
US5005222A (en) * 1990-06-21 1991-04-09 Sim Jae K Toilet assembly
US5054131A (en) * 1990-06-29 1991-10-08 Sim Jae K Toilet assembly
US5079782A (en) * 1990-06-21 1992-01-14 Sim Jae K Toilet assembly
US5167039A (en) * 1992-02-14 1992-12-01 Sim Jae K Toilet assembly
US5201079A (en) * 1991-09-24 1993-04-13 Sowards Edward W Toilet ventilation system
US5388280A (en) * 1993-10-13 1995-02-14 Sim; Jae K. Ventilation toilet assembly for use in a recreation vehicle
US5715543A (en) * 1997-01-16 1998-02-10 Sim; Jae K. Toilet assembly having an automatic ventilation system
WO1998041702A1 (en) * 1997-03-14 1998-09-24 John Swan Topen Odourless toilet
US6928666B1 (en) 2004-03-03 2005-08-16 Richard C. Schaffer Toilet with self-contained ventilation system
US20060031980A1 (en) * 2004-08-11 2006-02-16 Hernandez Bernardino A Toilet ventilation
US20140289941A1 (en) * 2011-07-15 2014-10-02 Amadeu Tonussi Rodrigues Toilet odor extracting apparatus
US20170204595A1 (en) * 2016-01-19 2017-07-20 David R. Hall Toilet with Air Sampling Exhaust

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US908393A (en) * 1908-05-09 1908-12-29 Watson H Cline Ventilating device for water-closets.
US1685891A (en) * 1927-02-15 1928-10-02 William M Watkins Water-closet ventilator
US2041962A (en) * 1934-06-22 1936-05-26 Paul C Ford Ventilated plumbing fixture
US2058436A (en) * 1935-12-06 1936-10-27 James A Friel Self-ventilating toilet
US2148896A (en) * 1938-09-07 1939-02-28 Pierre L Bertrand Toilet bowl ventilating device
US2203111A (en) * 1940-01-10 1940-06-04 Percy H Stebbing Toilet venting device
US2227920A (en) * 1939-03-15 1941-01-07 Baither Harry Ventilated toilet
US2297935A (en) * 1941-02-03 1942-10-06 Baither Harry Ventilated toilet
US2329221A (en) * 1941-04-10 1943-09-14 Hugh W Sanford Deodorizer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US908393A (en) * 1908-05-09 1908-12-29 Watson H Cline Ventilating device for water-closets.
US1685891A (en) * 1927-02-15 1928-10-02 William M Watkins Water-closet ventilator
US2041962A (en) * 1934-06-22 1936-05-26 Paul C Ford Ventilated plumbing fixture
US2058436A (en) * 1935-12-06 1936-10-27 James A Friel Self-ventilating toilet
US2148896A (en) * 1938-09-07 1939-02-28 Pierre L Bertrand Toilet bowl ventilating device
US2227920A (en) * 1939-03-15 1941-01-07 Baither Harry Ventilated toilet
US2203111A (en) * 1940-01-10 1940-06-04 Percy H Stebbing Toilet venting device
US2297935A (en) * 1941-02-03 1942-10-06 Baither Harry Ventilated toilet
US2329221A (en) * 1941-04-10 1943-09-14 Hugh W Sanford Deodorizer

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2824313A (en) * 1954-05-20 1958-02-25 Richard L Bulow Electric toilet seat exhaust ventilator
US3534415A (en) * 1965-05-05 1970-10-20 Robert G Huffman Automatic ventilating system for sanitary toilets
US3703010A (en) * 1970-05-12 1972-11-21 Dale F Russell Ventilated toilet
US3681790A (en) * 1970-06-15 1972-08-08 John Dooley Ventilated water closets automatically affording protection of its ventilating means from water damage
US3805304A (en) * 1971-07-01 1974-04-23 N Ikehata Ventilating toilet
US4011608A (en) * 1974-01-18 1977-03-15 Pearson Raymond H Electric toilet deodorizer
US4094023A (en) * 1975-12-11 1978-06-13 Smith Donald L Ventilated toilet seat
US4165544A (en) * 1978-05-15 1979-08-28 Barry Bill H Odorless toilet stool
US4318192A (en) * 1979-10-31 1982-03-09 Williams Jack D Ventilated toilet
DE3526587A1 (en) * 1985-07-25 1987-02-05 Heinrich Menge Device for controlling at least one gas flow
US4880027A (en) * 1986-12-17 1989-11-14 Heinrich Menge Method of and apparatus for regulating the flow of at least one gas stream
US4933996A (en) * 1989-05-25 1990-06-19 Sowards Edward W Toilet deodorizer
US4993083A (en) * 1990-06-18 1991-02-19 Lemieux Charles E Ventilated toilet
US5079782A (en) * 1990-06-21 1992-01-14 Sim Jae K Toilet assembly
US5005222A (en) * 1990-06-21 1991-04-09 Sim Jae K Toilet assembly
US5054131A (en) * 1990-06-29 1991-10-08 Sim Jae K Toilet assembly
US5201079A (en) * 1991-09-24 1993-04-13 Sowards Edward W Toilet ventilation system
US5167039A (en) * 1992-02-14 1992-12-01 Sim Jae K Toilet assembly
US5388280A (en) * 1993-10-13 1995-02-14 Sim; Jae K. Ventilation toilet assembly for use in a recreation vehicle
US5715543A (en) * 1997-01-16 1998-02-10 Sim; Jae K. Toilet assembly having an automatic ventilation system
WO1998041702A1 (en) * 1997-03-14 1998-09-24 John Swan Topen Odourless toilet
GB2336856A (en) * 1997-03-14 1999-11-03 John Swan Topen Odourless toilet
US6928666B1 (en) 2004-03-03 2005-08-16 Richard C. Schaffer Toilet with self-contained ventilation system
US20060031980A1 (en) * 2004-08-11 2006-02-16 Hernandez Bernardino A Toilet ventilation
US20140289941A1 (en) * 2011-07-15 2014-10-02 Amadeu Tonussi Rodrigues Toilet odor extracting apparatus
US20170204595A1 (en) * 2016-01-19 2017-07-20 David R. Hall Toilet with Air Sampling Exhaust
US10060111B2 (en) * 2016-01-19 2018-08-28 David R. Hall Toilet with air sampling exhaust

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