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Publication numberUS2279789 A
Publication typeGrant
Publication dateApr 14, 1942
Filing dateSep 16, 1940
Priority dateSep 16, 1940
Publication numberUS 2279789 A, US 2279789A, US-A-2279789, US2279789 A, US2279789A
InventorsHenry Jentzer
Original AssigneeHenry Jentzer
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Toilet bowl ventilator
US 2279789 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

April 14, 1942. H. JENTzr 2,279,789

TOILET BGWL VENTILATOR Filed Sept. 16, 1940 #Wy Jfffffgm l BY mja/wwf@ ATTORNEYS Patented Apr. 14, 1942 "UNITED STATT;


This invention relates to toilet bowl ventilators, and its general object is to provide an automatic apparatus that is rendered active, for

the seat of the latter is occupied, and for that purpose, the apparatus includes a seat operated switch for controlling the motor of 'a suction fan which is mounted within an air discharge conduit leading to an atmosphere vent, the discharge pipe being in communication with the usual flush pipe of the bowl through the medium of the overflow pipe of the flush tank.

A further object is to provide a toilet bowl ventilating apparatus that can be installed with respect to standard ush tank toilet equipment with minimum change to the structure thereof.

Another object is to provide a toilet bowl ventilating apparatus that is simple in construction, easy to install, inexpensive to manufacture, and extremely eiiicienti in operation, use and service.

vThis invention also consists in certain'other features of construction and in the combination andV arrangement of the several parts, to be hereinafter fully described, illustrated in the accom# pfanying drawing and specifically pointed out in the'appended claims. y

l In describing the invention in detail, reference willbe had to the accompanying' drawing wherein like rcharacters denote like or corresponding partsv throughout the several views, and in which:

Figure 1 is a fragmentary Vfront view, partly in section and illustrates my apparatus installed for use with standard ush tank toilet equipment.

Figure 2 is a fragmentary side elevation illustrating the association of the air discharge conduit with respect to the overflow pipe.

Figure 3 is a sectional view taken through the switch and illustrates the same applied tothe seat of the toilet bowl.

Figure 4 is a view of the switch with the cover of the casing thereof removed.

Referring to the drawing in detail, the letter A indicates the toilet bowl, B the seat therefor and C the flush or water discharge pipe leading from the tank D to the bowl, the pipe C having the usual overflow pipe E formed laterally thereon and rising therefrom. The flush pipe C is controlled by the usual float valve F and the float controlled water inlet valve GA is equipped with the usual after-fill pipe H to provide the water seal within the bowl. It will be understood that all of this structure is standard equipment and is shown merely to illustrate the relation of my apparatus therewith.

My apparatus in the yform shown includes a substantially semi-spherical cup I provided .with a collar flange 2 sleeved on and fixed to the upper end portion of the overflow pipe E for disposal of the rim of the cup above the upper end thereof, and the cup has mounted therein the outlet end of the pipe I-I, so that the cup will b'e retained lled with water at a, level flush with the upper end ofthe pipe E,.as'will be apparent upon inspection Vof Figure 1.

Extending into the cup l in spaced relation for disposal about' and slightly below the yupper end of the pipe E, tobe sealed by the water in the cup, is the lower end of a double elbow section 3 of an air or odor discharge conduit, the section 3 extending throughv the rear wall of the tank and has telescopically mounted on the upper end thereof the cylindrical inner portion 4 of a housing for a suction fan. The upper or outlet section 5 of the discharge conduit is telescopically mounted within the cylindrical portion 4' which together with an inner housing member 4' connects the members 3 and 5 in communication with each other, and in order to provide a leakproof connection between the sections and the portion 4 and inner housing memberl, I provide gaskets 6 surrounding the ends of the inner housing member 4 and bearing against the confront--v ing ends of the sections, as clearly shown in Figure 1.

Mounted and secured vertically within the inner housing member 4' is the'suction fan which includes a relatively narrow substantially oval shaped motor 1 having its armature shaft extending through both ends thereof and fixed to the ends of the armature shaft areA suction blades B for drawing air and consequently olensive odor from the bowl, through the medium of the ush pipe C, overflow pipev E and the elbow section 3 for passage of the air through the inner housing member 4 and the outlet section 5, the latter being connected to an atmosphere Vent pipe, not shown, or the section 5 may extend directly to the atmosphere for directing the air thereto, as will be apparent.

The switch for automatically controlling the fan includes an elongated relatively fiat rectangular casing 9 provided with a removable cover I0 that may be xed in closed position by any suitable means, the casing and cover being made from insulating material and the casing is fixed to the underside of the seat B by screws or the like, as best shown in Figure 3. Mounted between its ends in and for disposal between bearings I! for rocking movement, is a substan-l tially T-shaped contact arm I2 having one end xed within a knob I3 of rubber or other suitable cushioning material and which extends through an opening in the cover I for disposal in abutting relation with the bowl, as clearly Ashown in Figure 3, the knob being vspring pressed for normally urging the same outwardly of the casing, for holding the opposite or cross member end I4 of the arm I2 spaced from a pair of parallel strip contact members I 5 that are embedded and xed within the casing for disposal in the path of the end member I4, for the latter to bridge the contact members I5 to close the circuit to the fan, when the seat is occupied, as

will be apparent upon inspection of Figures 1 and 3.

The contact members I5 have one ofltheV ends 22extending to the other conductorV 2.3 of the house circuit. i A v.

From the above description and the disclosure in the drawing, it will be obvious that when the seat is occupied, the circuit to the fan is closed and the latter will remove foul air and offensive odor from the bowl and-the 'surrounding area. It will be` further obvious that the housing 24 which includes the cylindrical inne'rportion 4 tends Vto deaden the noise of the' fan; so that the apparatus `is substantially noiseless 1t is `thought from the foregoing description that the advantages-and novel features invention will be readilyV apparent.

' It is to be `understood'that changes may be made' in the construction and in the combination and arrangement of the vseveral parts, provided that such changes Afall within `the scope of the appended claims.

What I claim is: p A Y. l. .A Ventilating apparatus vfor a iiush tank equipped toilet bowl, an overow pipe for the tank and communicating withy the bowl, a pipe for supplying water to the overow'pipajand said apparatus comprising a water receptacle secured to andsurroun'ding the overflow pipe yto extend above the upper end thereof, said recep-A tacle having the outlet end ofthe water supply pipe extending therein to maintain water -Within the receptacle at jalltimes, an air 4conduit including a section having its inlet end `mounted in the 'receptacle about and below the upper end ofthe overow pipe for disposal ,below the level of the water within the receptacle, a second section for the conduit and communicating with the atmosphere, a housing including a cylindrical portion sleeved on the sections, an inner housing member mounted within the cylindrical portion and the sections, gaskets surrounding the ends of the inner housing member and cooperating therewith and the cylindrical portion to provide a leakproofconnection for the sections, a

motor driven suction means within the inner housing member, and switch means in circuit with the motor for controlling the latter.

2. A Ventilating apparatus for a flush tank equipped toilet bowl, an overow pipe for the tank and-communicating with the bowl, a pipe for supplying water to the overflow pipe, and

said apparatus comprising a substantially semispherical cup, an annular flange formed on the cup and securedk to and surrounding the Aoveriiow pipe fordisposing `the rirn of the cupabove the 'upper .end of the overflow pipe, said cup having the outlet end of the water supply pipe extending therein tov maintainv water within the receptacle at all times, an air conduit having its inlet end mounted in the cup about and below the upper end of thexo'verflow pipe for disposal below the level ofthe water within the receptacle, motor driven suction means within the conduit, and a switch in circuitwwith the motor for controlling the latter.

3. A Ventilating apparatus for 'a flush tank equipped 'toilet bowl, an overflow pipe for the `tank and communicating with the bowl, a pipe below the level of the water within the receptacle,

an outlet section communicating with the atmosphere and having .oneV end `Aaligned with the outer end lof the inlet section, a housing including a cylindricalA portion connecting the aligned ends oflthe vsections together, motor driven suction meansy within the cylindrical portion, and a switch` in circuit with the motor for controlling the latter.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2743462 *Feb 25, 1953May 1, 1956Mcmillan Carl WHinge and vent assembly for toilet bowls
US3102275 *Sep 12, 1960Sep 3, 1963Raymond Fred IWater closets
US3495282 *Nov 16, 1967Feb 17, 1970Taggart Allaird BToilet bowl and exhaust device
US3691568 *Aug 24, 1970Sep 19, 1972Martz William LVentilator for water closets
US3703010 *May 12, 1970Nov 21, 1972Russell Dale FVentilated toilet
US3900908 *Dec 12, 1973Aug 26, 1975Stump Galen LWater closet evacuation means
US4007498 *Jan 5, 1976Feb 15, 1977Pearson Raymond HToilet ventilator including overflow-responsive sensor
US4017916 *Dec 4, 1975Apr 19, 1977Pearson Raymond HToilet ventilator including motion-responsive electrical transducer
US4165544 *May 15, 1978Aug 28, 1979Barry Bill HOdorless toilet stool
US4583250 *Sep 4, 1985Apr 22, 1986Valarao Bonifacio CDevice for the removal of foul air from toilet bowls
US4590629 *Jul 27, 1984May 27, 1986Lusk Leonard AToilet ventilating device
US5125119 *Dec 17, 1990Jun 30, 1992Jesus MunozOdor reduction toilet apparatus
US5369810 *Dec 2, 1992Dec 6, 1994Warren; H. RayMalodorous air entrapment apparatus
US5781937 *Jun 20, 1997Jul 21, 1998Liang; Ming-FengToilet deodorizing system
US6804837Sep 9, 2003Oct 19, 2004Guess Sr Robert LOdor transporter system for a toilet bowl
US20070186334 *Feb 14, 2006Aug 16, 2007Carter Wilbert LVentilating apparatus for a toilet
DE102008038120A1Aug 17, 2008Apr 8, 2010Scholta, Winfried E.Smell adsorption module for use as container for axially sucked and blown air stream, has bars and grooves formed at inner and outer wall sides of container for switch, battery, sensors, operating elements and other functional elements
WO1999041464A1 *Feb 10, 1999Aug 19, 1999Dannenmueller LucImproved device and method for eliminating odours in toilets
U.S. Classification4/213, 454/49, 454/343
International ClassificationE03D9/04, E03D9/052
Cooperative ClassificationE03D9/052
European ClassificationE03D9/052