Deodorizer integral with toilet seat

Aug. 1, 1967

F. E. NULL

3,333,285

DEODORIZER INTEGRAL WITH TOILET SEAT

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Aug. 1, 1967

f. e. null 3,333,285

DEODORIZER INTEGRAL WITH TOILET SEAT

Filed March 26, 1964

Sheets-Sheet 2

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<img file="US3333285A_D0003.tif" />

United States Patent Office

3,333,285

Patented Aug. 1, 1967

Objects and advantages other than those set forth, will be apparent to those skilled in the art from the following description when used in connection with the accompanying drawings, in which:

• FJP’ ¹ *^S ? ^{pFan V}’^{ew oF tbe} deodorizing system show“g the seat in its horizontal position with hinged spatter plate halves on the underneath side, and the combination ninge and hollow axle duct which discharges to the electric motor driven fan under the water tank.

^FI9;^{2 a profile view th}e same system components as in rlG. 1.

FIG· 3a is a plan view of the bowl and raised seat with the spatter plate halves closed and held by a flush screw at the top.

FIG· 3 b is an elevation view of the raised seat with the hinged, spatter plate halves closed and secured by a flush screw at the top. An inner baffle rim on the seat bottom protrudes from under the spatter plate.

FIG. 3c is an elevation view of the raised seat with the spatter plate halves swung back and the filter baffle, inlet surfaces exposed for easy cleaning.

. FIG. 4 is an enlarged cross-section of the seat and bowl rim.along line 4—4 in FIG. 1, and also shows the crosssecuon along line.4-4 FIG. 3b if the bowl is removed r¹ θ’ ⁴' Il illustrates the formation of the entrance baffle from the seat and bowl rim surfaces, shows the function of the spatter plate in forming part of the baffle system when closed but allowing ready cleaning of baffle passages when open, shows the readily replaceable charcoal niter insert, and illustrates the flow of air in the seat interior ducting, which leads from the baffles to the filter, and from the filter to a large, peripheral duct which is connected to the hollow hinge axle of FIG. 5.

• ^FIG'., ⁵, ΐ ^{an enlar}8^ed cross-section of 'the seat, bowl run and hollow discharge axle along line 5—5 in FIG 1 It has the same peripheral features as FIG. 4, but in addi^ll°n shows the passage between the large peripheral duct of FIG. 4 and the hollow axle of the seat hinge whose inner, cylindrical surface has openings for passage of the air into an exhaust tube attached to the rear end of said hinge axle which leads to the fan intake. Either the front or rear end of the hollow hinge axle can. be exhausted by a fan, whichever is most convenient, the other end being capped. In FIG. 5 the rear end of the hinge axle is ducted to the exhaust fan, and in FIGS. 1 and 2 the fan exhausts from the front end of said hinge axle.

Referring more particularly to the drawings by characters of reference, reference numeral 1, FIGS. 1 and 2 indicates the toilet seat resting on the bowl 2 with the spatter plate halves 3 and 4, hinged at 5 and 6 and separating said bowl and said seat. Extension 7 of the seat 1 connects to outer cylinder 8 of the hinge 9, said outer cylinder 8 rotating about concentric, smaller diameter 55 ^CyL^mR^ef ^{10 Which is attached} to ledge 11 by rings 12 and bolts 13. Attached to said outer cylinder 8 are the end. seal pieces 14 that make an approximately air tight slidmg contact 15, see FIG. 5, with inner cylinder 10. The lubrication of the sliding surfaces can be obtained 60 / ^a /^nety ?^Fw.^ays&gt; ^{as by use of} different materials, application of lubricant in assembly, or with one material having a lubricant filled, sintered structure FIG 5 is a cross-section along line 5-5, FIG. 1. It shows the periphera! passage 16 in the top of seat 1 that is exhausted 65 ,?^u,^{8h duct 47 lnt0 the} angular space 18 between outer cylinder 8 and inner cylinder 10. Cylinder 10 has holes 19 to conduct the air to its interior 20 and into rear end tube 21 which in FIG. 5 leads to an exhaust fan on the ! ^{Sto01 22}\ ^FIG’ ²; ^For convenience the exof cylinder 10. In FIGS. 1 and 2 the rear end of cylinder 10 is shown closed by cap 21, and the front end of

3,333,285 DEODORIZER INTEGRAL WITH TOILET SEAT ray Edison Null, Choctawmar Subdivision, Okaloosa

County, Fla. (Box 158, Shalimar, Fla. 32579) Filed Mar. 26,1964, Ser. No. 355,050 8 Claims. (Cl. 4—217) , “J⁷*⁵¹¹¹¹⁰? relates to a filter deodorizer integral with the toilet seat, insuring uniform exhaust of the air inside the bow! into a peripheral charcoal filter in said seat, and with a seat hinge having a hollow axle ducting to an electric motor driven blower with exhaust below the water tank.

Heretofore, bathrooms have often been deodorized by complete change of the air in the room. This does not deodorize the air passing the user, from the bowl source to the ventilating outlet. The present invention provides tor a uniform intake of air from the inner periphery of the bowl top, said intake air having the same pressure drop across a carbon filter integral to the toilet seat, and said pressure drop being high relative to the remaining pressure drop across the duct to the exhaust fan, so that air periphery ^b°^{W1 exbausted uniforird}y around said seat ^pre,^{sent n,vention} a baffle inlet system is formed 25 by the combination of the seat and bowl top rim for protection from splash, and such that on raising the seat with separation of bowl and seat surfaces, any spattered ^Urf^^e7^{S exposed for} cleaning. A special spatter plate frn^^de?_tt^{t0 bottom to} P^rote^ct the filter intake 30 om spatter when the seat is in the raised position. This spatter plate is readily swung back to permit cleaning of reiufred^{r dUCt}’ “ ^{occasions this ma}V be _ It is therefore, among the objects of the present inven- 35 tion to provide for a uniform exhaust of the air from inside the toilet bowl through a purifying filter; any transfer of air between the bowl and room being from the room into the bowl, so that odors are effectively removed at the source without contamination of the room air.

⁹°^thT K^f i^{he present} invention is coaction between the inside bowl rim and the seat adjacent surface o orm a protective baffle against contamination of the niter intake by spatter, the baffle passages to the filter m et, and the affected parts of both bowl and seat being 45 fully exposed for cleaning when said seat is raised.

Another object of the present invention is to provide a spatter plate to protect the filter entrance when the seat is in the raised position, and which may be readily swung back for cleaning on the rare occasions such cleaning is 60 needed. . ®

Another object of the present invention is to provide a pffarcoal filter integral to the seat and with a peripheral intake that exhausts uniform volumes of air from around the bowl periphery, as made possible by having a pressure drop across the filter much larger than the pressure drop across the varying flow lengths from the filter periphery to the seat exhaust duct. .

Another object of the present invention is to provide a neat, stream-lined exhaust duct from the seat hinge hollow axle. ’ ., ^A“^otber object of the present invention is to provide the deodorization function of bathroom ventilation as supplemented for water vapor removal by window ventilation, room exhaust fans, or air conditioning ducts.

Another object of the present invention is to provide a charcoal filter holder that can be readily removed for refilling.

Another object of the present invention i« tn rr_m,;A« r„„ . - , '----— * uie exa seat and exhaust system that can be readily attached ^{70 a}£„^{bed t0 either the rear} °r front ends to a standard toilet type.

to provide

O cylinder 10 is exhausted through duct 23 to fan 24 as driven by electric motor 25, said fan and motor being secured by supports 26 and 27 from frame 28 held by bolt 29 which normally holds water tank 30 on rear stool ledge 31. . __T„

FIG. 4 shows a cross-section through line 4—4, Μϋ.

1. The seat 1 rests on bowl rim 2a. The filter 32 has inlet openings 33, to charcoal filling 34, and exit °P^e™ngs 35 that lead to peripheral passage 16 and to duct 17, FIG.

5. The friction lid 36 holds charcoal 34 in position, and i base plate 37, to which the filter 32 may be cemented, is held in seat 1 by screws 38. Spatter plate 3 is hinged at 5 and lies between seat 1 and bowl rim 2α. The support wall 40 has passages 41 to conduct air from the inner baffle passage 42 to filter 32. The outer baffle passage 43 is formed by, the seat surfaces 44 and 45 with the surface 46 of the bowl rim 2α, and the surface 47 of the tip of the spatter plate 3, which trap any spattered material when the seat 1 is in the horizontal position on the bowl 2. When the seat 1 is raised as in FIG. 3α the surface 46 of the bowl rim 2α is exposed for cleaning and the seat surfaces 44 and 45 and the surface 47 of the tip of the spatter plate 3 are also available for cleaning. The screw 48 holds the spatter plate halves 3 and 4 in the closed position. The inner baffle passage 42, FIG. 4, is composed of the interior surfaces 49 and 50 of seat 1, and the top of the tip surface 51 of spatter plate half 3, and prevents spatter of support wall 40 when the seat is in the vertical position as in FIG. 3i&gt; where 52 is the greatest inward projection of the seat 1 and 53 is the trace of the reentrant edge of said seat 1, the lowest portion of said seat in the closed position. In FIG. 3b the cross-sectional view from line 4—4 is given by FIG. 4 if the bowl 2 in FIG 4 is removed. It is noted that the inner baffle passage’ 42 adequately protects the support wall 40 from spatter, but that the surfaces 49, 50, and 51 may occasionally require cleaning. FIG. 3c of the raised seat 1, shows screw hole 48α where screw 48 was removed to permit spatter plate halves 3 and 4 to be swung back exposing the tip surface 51 of said spatter plate halves for easy cleaning, and also making inner surfaces 49 and 50 of said inner baffle passage readily available for cleaning.