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Патент USA US2112772

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March 29, 1938.
Filed May 7, 1937
Patented Mar. 29, 1938
TOILET vEN'rmA'ron
Ellis 1). Greene, Rochester, N. Y.
Application May ‘I, 1937, Serial No. 141,283
1 Claim. (o1. 4-213) ‘
‘This invention relates to toilet ventilators and the tank controls the ?ow of the water from the
has for its principal object to provide a simple tank. The construction of the ‘water closet so
and e?icient ventilating system of inexpensive‘ far described maybe any one of this type of
construction for toilet bowls with which all odors closets now in use and my ventilating system is
5_ from the toilet bowl are effectively evacuated es- constructed so as to be readily and easily ap- r5
pecially during its use in order to prevent the pllcable to all of them to prevent the escape of
escape of such odors into the toilet room thereby unpleasant and harmful odors during the use
eliminating the annoyance and unhealthfulness ~ of the closet.
incidental to the use of toilets in the house.
Another object of this invention is to provide a
ventilating. system that‘is easy and inexpensive
to install.
This ventilating system is inexpensive to in
stall and comprises the air intake manifold Ill 10
which is formed up of sheet metal in the form
of a substantially narrow ?at‘ tube which is closed
A further object of this invention is to provide
at one end and has its other end‘ terminate into
the intake of the ventilating system with a sim-
15 ple and easy mode of attachment to the bowl of
the closet.
This and other objects and attendant advantages of this invention will become more readily
apparent from the detailed description thereof
a tubular extension ll of cylindrical cross sec
tion. One side of the manifold is provided with 15
the elongated inlet“ thru which‘ the air is drawn
from the inside of the bowl as will hereinafter be
described. The other side of the intake mani
fold In is ‘provided with the mounting ?ange I3
20 which‘follows, reference being had to the ac- . which is suitably fastened to the anchoring bar 20
companying drawing in which
M. The latter is provided with a pair of verti
Figure 1 isa front elevation of a water closet
equipped with my novel ventilating ‘system.
cal holes 5A, 5A which are spaced'so as to corre
spond with the spacing of the ‘bolts 5, 5 on the
Figure 2 is a side elevation thereof.
Figure 3 is a detail sectional view of a modi-
top of the rear of the bowl. In this way the bolts
5, 5 are adapted to pass thru the, anchoring-bar 25
?ed form of ventilating fan and its connection
“to have‘ the nuts l5 clamp the anchoring bar
for use with ‘the ventilating system.
to the top of the back of the bowl below the
Figure 4 is a partial top plan view of the‘water ' hinge of the seat and the cover thereof.
closet bowl with the ventilating system mounted
With the anchoring bar I‘ fastened in place
30 thereon.
in. the manner above described, the intake mani- 30
Figure 5 is an enlarged detail sectional view of
fold is held supported'so as to project from the
the rear portion of the water closet bowl and the
ventilating system‘ attached thereto.
outside of the bowl over the edge thereof and
extend over the inside along the rear of the bowl
Figure '6 is a horizontal section of the intake
35 manifold of the ventilating system including its
means for attachment to the water closet bowl.
between it and the rear of the seat 2. The inlet 7
I2 is thus located over the inside of the bowl sub- 35
stantially the full length of the ma? thereof to
Figure 7 is an enlargedvertical sectional view ' provide a large intake opening for a quick and ‘
of a water closet bowl in which the intake mani- effective evacuation of the air within the bowl.
fold for the ventilating system is embodied in
The intake manifold is connected to a. suit
40 the bowl proper.
able exhaust fan which is operated by an electric 40
In the several ?gures of the drawing like refer- ‘motor that is controlled by a switch which is
ence numerals indicate like parts. \.
preferably operated by.the cover of the closet
The ventilating system forming the subject bowl. For this purpose a pipe line I6 is con
matter of this invention is‘illustrated in the nected to the cylindrically tubular open end of
45 drawing as applied to a water closet having the the intake manifold Ill, which pipe line leads to 45
bowl I, a seat 2 on top of the bowl and a cover 3
the exhaust fan l1 and from the exhaust fan to
extending over the opening in the'seat. vThe seat,
and the cover are hingedly mounted at the back
any vpoint where the odor of the evacuated air
will not be objectionable. Such a pointmay be
of the bowl on the horizontal pivot shaft l ‘which > the roof of ‘the house or the soil pipe of the sewer
50 is supported by the spaced bolts 5, 5 which are system etc.
suitably anchored in the top of the rearof the
In the form of exhaust fan l'l illustrated in
bowl I. ‘ At the back of the bowl is located“ the‘ Figure 1 the air enters the center‘ of ‘its circular
water tank 6, and the pipe] connects the bottom of this water tank with the bowl-[for ?ushing
55 purposes. A suitable handle 8 on the outside of
casing and is forced out by the blades tangentially.
to the circular outer wall thereof. In the form of
exhaustlfan I'IA illustrated in Figure 3, the fan 55
is mounted in a cylindrical housing It which has
a conically- reduced inlet l9 and a similar outlet
20 for connection with the pipe line ii. If
enough natural draft is present in the pipe line l6
for the evacuation of the air from the closet bowl,
an exhaust fan may be dispensed with and a suit
able length of pipe line is then used to take the
place of the fan casing.
The exhaust fanis electrically driven and to
10 make the operation of the fan most effective it is
controlled by a switch that is automatically oper
ated by the cover 3 of the closet bowl. When this
cover‘ is raised to uncover the opening in the seat
just prior to the use of the closet, the fan is started
15 to exhaust the air from the bowl while the closet
is being used and kept on operating until the
cover is closed over the seat after the closet has
been used. This makes certain that all of the
foul air is withdrawn from the bowl before the ex
20 haust fan is stopped. Of course some ventilation
continually takes place even after the exhaust fan
has stopped‘ because of the natural {draft in the
pipe line. >
For the automatic operation of the fan a switch
25 2| is mounted on top of a bracket 22 which is
supported from the anchoring bar I‘ so as to lo
,cate the switch in a position in which the project
ing push rod 23 of the switch is contacted by
' the cover‘ when the cover is swung open to rest
30 against the tank 01' the closet. Thepush rod 23
tank, the push rod-23 is released by the cover and
moves out of the switch casing tov cause the con
necting member 24 to open the electric circuit
between the terminal contacts 25 and 26 and thus
stop the fan.
In Figure 7 I have illustrated the intake for the
ventilating system embodied in the bowl construc
tion proper. In this construction the manifold
21 is cast into the bowl as an integral part there
of so as to have its mouth 28 on the inside wall 10'
below the top of the bowl. An opening 29, which
may be slightly tapered, leads into the intake
manifold from the outside of the bowl and is
adapted to have the end 30 of the pipe line 16
extend thereinto for connection therewith.
I claim:
A ventilating system vfor closets comprising in
combination a bowl, a seat, a cover over the seat,
anchoring bolts projecting from the top of the
back of the bowl, said bolts carrying a hinge ele
ment secured to the cover to cause said cover to
swing on said bolts, an intake manifold supported
on said bowl by said anchoring bolts, a pipe line
connected to said intake manifold, ~an exhaust fan
connected to said pipe line, an electric motor for,
operating said exhaust fan, a switch for con
trolling the operation of said electric motor, a
bracket carried by said manifold for supporting
said switch above and to the rear of the cover of
said' closet in cooperative relationship with said 30
is spring pressed and when the ‘cover makes con ’ hinge element so as to determine precise contact
tact with it, it is forced into the switch housing between the cover and said switch for the opera
tohave the contact member 24 close the electric tion of the exhaust fan when said cover is swung
motor circuit between the terminal contacts 25 into a substantially vertical position in preparing
and 26. - with the cover open and leaning against .
the closet for use and operate the switch to stop
the water tank, the electric circuit of the" fan thevoperation of the exhaust fan when placing the. 35
motor is thus 'held closed-so as to continually ‘
cover over the seat of the bowl after the use of the
operate the fan.
As soon, however, as the cover is being closed
__over the closet seat and swung'away from the
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