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Патент USA US2105794

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Jan. 1s, 193s.
Q_ C, Noms
j
2,105,794
COMBINATION CLOSET TANK COVER AND VENTILATOR
Filed Feb. 8, 19.37
s rwvrm l
Char/ef C ¿Vo/wif
Patented Jan. 18, 1938
2,105,794 y
UNITED STATES
PATENT OFFICE
2,105,794
COMBINATION CLO‘SET TANK COVER AND
VENTILATOR
Charles C. Norris, Riverside, Calif.
Application February 8, 1937, Serial No. 124,636
8 Claims.
This invention relates generally to the art of
Ventilating water closets. More particularly the
invention resides in the provision of improved
means for the positive ventilation of water closet
5 bowls.
Ventilation of the Water closet bowl is usually
accomplished by means of a blower, or exhaust
fan, and suitable conduits associated therewith
to conduct the gases from the bowl to a point re
10 mote from the room Where the water closet is
located. The blower is often installed in the
room with the Water closet. If the blower is lo
cated in the room with the water closet it takes
up space, and in the modern home presents an
(Cl. 4-213)
Fig. 2 is a fragmentary sectional view through
the tank cover member and the upper portion of
the tank on line 2-2 of Fig. l.
Fig. 3 is a fragmentary section on line 3-3 of
Fig. 1.
.
Fig. 4- is a fragmentary sectional plan view on
line 4_4 of Fig. l, shown turned at 90 degrees.
Fig. 5 is a fragmentary sectional view showing
a modiñed form of the invention for use on
water closets which are placed ilush with the
wall of a building.
Referring to the drawing, reference numeral
of necessity be driven by a water motor as the
atmosphere in the tank is so damp as to make
I I generally indicates the bowl of a modern one
piece water closet above which is located a flush
tank I2. Reference numeral I3 generally indi
cates a combination tank cover and Ventilating
unit adapted to ñt over and form the top closure
of the tank I2.
it an impracticable place for the installation of
20 an electric motor. Furthermore, the limited
space available in the tank is a disadvantage and
Establishing communication between the ñush
tank and the bowl in the ordinary water closet
construction is a iiush pipe (not shown) which
if the blower is located there, both the blower
and the ordinary working parts of the water
closet are then rendered diii'icult of accessibility.
The blower may be located at a. point remote
25
from the water closet tov be ventilated, but this
type of construction has the disadvantage of
higher cost, since it is difñcult to install and usu
ally entails additional material.
In View of the disadvantages of the present
30
methods of Ventilating water closets it is a pri
has an inlet in the tank and an outlet in the per
forated conduit I4 in the rim of the bowl. It is
the usual construction of water closets to include
an overflow pipe which has its inlet in the upper 25
1 y undesirable appearance.
Usually if the blower is
located in the tank of the water >closet it must
mary object of this invention to provide a ven
tilating attachment for water closets which over
comes- all of the disadvantages of the present
methods of ventilation and which is in-the form
of a combination tank cover and Ventilating unit.
It is also an object of this invention to provide
a Ventilating attachment for water closets which
may be easily and quickly installed on either a
40 one-piece or two-piece water closet at the time
the water closet is installed or at any subsequent
time.
It is a further object of this invention to pro
vide a Ventilating attachment of the type indi-l
45 cated which will eñiciently and positively venti
late the bowl of a water closet and which may
be operable as desired. In this connection it is
an object to provide means for giving a sensible
indication when the device is operating.
50
These objects are attained in the structure
shown in the accompanying drawing in which:
Fig. l is a front elevation of a modern water
closet embodying a preferred form of the inven
tion. A portion of the water closet is broken
5.5
away to facilitate> illustration.
.
portion of the nush tank just above the desired
normal water level and which has its outlet in
the perforated conduit in the rim of ~the bowl.
The position and construction of these overflow
pipes» vary in the different types of water closets, 30
so for purposes»r of illustration a modern one- „
, piece water closet which has the overñow pipe
cast in one corner of the tank has been shown.
Reference’numeral YI5 indicates the overíiow pipe
which communicates with the conduit I4 in the
bowl'by means of passage I6.
This- invention contemplates the use of the
overflow pipe as the means for conducting the
undesirable gases from the bowl vto the upper
portion of the tank. It is evident that if a
partial vacuum is created in space I l in the
upper part of the tank the gases in the bowl will
enter the water outlet holes I4' in the conduit
rIii and be drawn through the overñow pipe I5
into space I'I.
The invention lies principallyin the provision
of unique means for eiîecting the partial vacuum
in the space I 1, it being understood that overflow
vpipes as described above have been used in con
nectíon with other Ventilating apparatus. The
means for eiïectingthispartial vacuumin the f
`space I'I consists of a combination tank cover and
Ventilating, unit generally indicated by I3.- The
cover differs from the ordinary tankr cover
,mini that it has a convex enlarged portion I 9 which
2,105,794
2
provides room for housing a blower unit, generally
indicated by reference numeral 2'0 in the cover
member. Around its lower edge the cover has a
depending ñange portion` 2| adapted to fit over
the tank I2. The flange portion 2I terminates
in a shoulder 22. Adapted to be positioned
against shoulder 22 is a sealing means 23 which
may be formed of sponge rubber or other suit
able material. This sealing means is interposed
10 between the upper edge of the tank I2 and the
20
25
30
35
shoulder 23 of the cover and thus provides a
iluid seal between the cover and the tank.
A floor 25 is mounted in the cover by means of
suitable screws (not shown) for the purpose of
supporting and encasing the blower unit 20 in
the enlarged portion I9 of the cover. The blower
20 is secured to the floor 2‘5 by means of bolts 26.
It has an inlet 21 which extends through a hole
25' in the floor 25 and which is in open com
munication with the space I'I in the tank I2.
The blower has an outlet, or exhaust, 28 which
extends through a hole I9’ in the rear of the
enlarged portion I9 of the cover 20.
Between the inlet 21 and oulet 28 is an
impeller, or fan, 29 mounted on shaft 30. The
shaft is driven by an electric motor 3l which is
connected to any suitable source of electric poten
tial by means of cord 31. In the motor circuit is a
snap switch 32 which extends through an opening
33 in the front of the enlarged portion I9 of
cover I8. Also electrically connected in the
motor circuit is a lamp generally indicated by
reference numeral 34 which has a suitable pro
tective and decorative slotted cover 35. The
lamp extends through an opening 36 in the en
larged portion I9 of the cover I8.
Both the
switch and lamp are mounted on a bracket 38,
which, for convenience is mounted between the
ñoor 25 and the blower 20 on one of the bolts 2‘6.
A suitable cover plate 39 is placed over the
40 outlet 28 and is attached to the `cover by means
of screws 40. This plate serves to seal the open
ing I9' in the enlarged portion I9 of the cover I8.
In this connection the outlet 28 as shown in Fig.
3 is so located that it may be brought out at right
45 angles to the rear side of the enlarged portion
I9 through the hole I9’ which is centrally dis
posed with relation to the ends of the cover. The
outlet 28 of the blower is adapted to be connected
to a vent pipe 42 although it is not necessary that
50 the ends of these pipes be tightly fitted together,
as such pipes areusually sealed in the Wall at
their inner ends during construction of the build
ing. The vent pipe 42 is located within the wall
of the building, one portion of the wall being in
55 dicated at 43, and may have its outlet at any
suitable point. In this connection it is not essen
tial to use a vent pipe if the outlet 28 is sealed
into a wall which has an outlet at a suitable
60
point.
In the form of the invention wherein the water
closet is adapted to be spaced from the wall a
portion 50.
‘This construction leaves a space 5I
between the enlarged portion I9a of the cover
and the wall 43a which is of ample size to accom
modate the sealing means, here generally in
dicated as 52.
In the operation of the invention, the switch
32l is closed, thereby completing an electric circuit
through the motor 3| in the blower 20 and
through the lamp 34. The lamp thus gives a
sensible indication that the device is in operation.
Operation of the motor in the blower serves to
rotate impeller 29 which forces gas out through
the outlet 28 and through the vent pipe 42, thus
creating suction in the inlet pipe 21 and suction
or a partial vacuum in the space I1 in the upper
portion of the tank I2.
The normal atmospheric 20)
pressure of the air forces the noxious gases in the
bowl II into the flushing water outlet holes as
indicated by the arrows in Fig. 3 and in turn
into the overñow pipe I5. The gases are then;
conducted through pipe I5 into space I1 and into
inlet 21 of the blower, and are forced out through
the outlet 28 and through vent pipe 42 to its
outlet.
It should be apparent from the foregoing de
scription of this invention that it has many ad 30
vantages over the present apparatus used for
the ventilation of water closets. By reason of
the fact that a simple unitary Ventilating unit
comprising a tank cover housing the ventilator
is provided the necessary apparatus extraneous
to the water closet itself is reduced to a minimum.
This materially facilitates installation and re
duces the cost of Ventilating installations.
The construction whereby the blower outlet>
is centrally disposed with relation to the ends 401
of the cover also facilitates installation of the
device, since the plumber knows that the vent
pipe in the wall should be opposite the center of
the water closet.
Finally, the invention described above gives a
positive sensible indication when it is operating
so that there is little chance that it Will be left
in operation when not needed.
Although the invention has been set forth
as embodying a specific construction, it is pos
sible to change details in the construction With
out departing from the scope of the invention
which is indicated by the appended claims.
I claim as my invention:
l. A Ventilating attachment for use in com
bination with a water closet having a bowl and
a flush tank which comprises a hollow cover
adapted to ñt over the tank and form the top
closure thereof, and a blower unit housed within 60.
said cover.
vided with a set screw 46 for adjustably mount
ing it on the outlet. Mounted on the flanged
side 45' of the collar is a ring 41 of suitable seal
ing material, such as sponge rubber. This ring
serves to seal the outlet 28 into the wall 43 and
any gas discharged from the outlet will be con«
sired to place the water closet flush with the
the tank and having an outlet externally of the .u
70 veyed away through the vent pipe 42.
In Fig. 5 is shown a modiñed construction for
'use in sealing the outlet, here indicated as 28a of
the blower unit into the wall 43 when it is de
l'us
the wall and the rear of the cover the enlarged
portion, here indicated as I9a, is formed closer
to the front of the cover, thereby leaving the shelf
2. A Ventilating attachment for use in com
bination with a water closet having a bowl and
a flush tank which comprises a cover adapted
to ñt over the tank to form the top closure there 65
of, and a blower housed in said cover, said blower
having an inlet in open communication with the
tank above the water level therein and having an
outlet externally of said cover.
3. A Ventilating attachment for use in com
bination with a waterA closet having a bowl and
a ñush tank which comprises a cover for the
tank, a blower housed in said cover, said blower
having a iluid inlet in open communication with
short distanceAas in Fig. 3, a ñanged collar 45 is
provided which fits over the outlet 28 and is pro
65
wall. In order to provide adequate room between
3
2,105,794
tank, and an electric motor housed in said cover
for operating said blower.
4. In combination with a water closet having
a bowl and a ñush tank therefor, means for re
moving gases from the bowl comprising a cover
for the tank, a blower housed in the cover, open
conduit means from the bowl to the upper part
of the tank above the water level therein, means
providing a seal between the tank and said cover,
and gas outlet means in said cover.
5. In combination with a water closet bowl
and a building wall having a vent pipe therein,
Ventilating means comprising a ñush tank, con
duit means for connecting the upper portion of
15 said tank with the interior of said bowl, a hollow
cover member for the tank, means providing a
seal between said cover member and said tank,
a blower housed in said cover member having
an inlet portion in open communication with the
20 upper portion of said tank and having an out
let conduit extending externally of said cover
member, for conducting gases from said blower
into said vent pipe, a collar adiustably mounted
on said outlet conduit, and sealing means
25 mounted on said collar and adapted to engage
said wall to seal said pipeY in the building wall.
6. For use in combination with a water closet
having a bowl and a flush tank and having open
conduit means between said bowl and the upper
30 portion of said tank, a Ventilating unit compris
ing; a cover member for the flush tank, said cover
member having an enlarged upper portion and
having a bottom closure member for said en
larged portion; and a blower mounted in said
-35 cover member above said closure member, said
blower having an inlet below said closure mem
ber in open communication with said flush tank
above the water level therein and having an out
let extending through said cover member.
’7. For use in combination with a water closet
having a bowl and a ñush tank and having open
conduit means between said bowl and the upper
portion of said tank, a Ventilating unit compris
ing: a cover member for the flush tank, said
cover member having an enlarged upper portion
and having a bottom closure member for said
enlarged portion; a blower mounted in said cover
member above said closure member, said blower
having an inlet below said closure member in
open communication with said flush tank above
the water level therein and having an outlet eX
tending through said cover member; an electric
motor in said cover member for operating said
blower; a switch mounted in said cover and ex
tending therethrough, said switch and said elec
tric motor being connected in an electric circuit
so that the closing of said switch completes a
circuit through said motor.
8. In combination with a water closet bowl
having a flush tank, Ventilating means compris
ing: conduit means for connecting the upper
portion of the tank with the interior of said
bowl; a cover member for the tank; means pro
viding a seal between said cover member and
said tank; a blower; means providing open oom- «l
munication between said blower and the upper
portion of said tank above the water level there
in; outlet means for said blower and an electric
_motor for operating said blower.
.
CHARLES C. NORRIS.
35
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