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Патент USA US3084360

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April 9, 1963
Filed Oct. 21, 1960
United States Patent 0 ” 1C6
Patented Apr. 9, 1953
18. The opposite end of the rocker arm 25 is pivoted
3, ~84,350
Russell Anderson, Eon 135, Scranton, Pa.
Filed Oct. 21, 1960, Ser. No. 64,984
1 Claim. (Cl. 4--225)
This invention relates to ?ush tanks of the type gen
erally used on toilet bowls and consists more particularly
in new and useful improvements in a device for auto
as at 29 to the upper end of an auxiliary ?oat rod
30, the lower end of which carries an auxiliary ?oat ball
31 disposed adjacent the bottom of the flush tank 5 and
normally below the liquid level therein. The vertical
position of the rod 30 is maintained by a guide arm 32
connected to the upper end of the conduit 21.
In order to insure the proper seating of the valve
body 22, I preferably provide an annular guide ring
22a which bounds the seat of valve 20‘ in a vertical
position and may be provided with a series of radial
disinfectant or deodorant into the toilet bowl at the con
inlet ports 22b to facilitate the passage of disinfectant
clusion of each ?ushing operation.
from the reservoir 18 to and through the valve 20.
The primary object of this invention is to provide a
As seen in FIGURE 2, the lower end of the rod 30 is
toilet bowl disinfecting device which is extremely simple
in construction and one which can be used with con 15 threaded and by means of lock nuts 34 and 35, the ?oat
ball 31 is vertically adjustable on the rod 30 so that its
ventional toilet equipment without requiring major alterae
relative position with respect to the lowest level of
tions therein.
water in the ?ush tank 5 may be adjusted to regulate
Another object of the invention is to provide a device of
both the time of operation ofthe disinfectant discharge
this character which is completely housed within the con
ventional ?ush tank, yet is easily accessible by simply 20 valve 2il-22 and the extent of opening thereof, as will
later appear. Also, as a further means of adjustment, the
removing the lid.
valve stem 23 is threaded at both ends as at 36 and 37
A further object of the invention is to provide a toilet
matically injecting a predetermined quantity of a chemical
bowl disinfecting device which is truly automatic in
operation and is capable of adjustment to regulate the
to regulate the degree of opening and closing of the
valve 2tl—--2Z.
In order to limit the downward movement of the rod
amount of disinfectant injected into the toilet bowl.
30 and ?oat ball 31, I preferably provide a collar 30a
With the above and other objects in view which will
which is adjustably secured to the rod 30 by a set screw or
appear as the description proceeds, the invention consists
the like and is adapted to abut a ?xed collar 32a attached
in the novel features herein set forth, illustrated in the
to the guide arm 32, and slidably embracing the shaft 30.
accompanying drawings and more particularly pointed
In operation, the reservoir 18 is ?lled with a desired
out in the appended claims.
chemical deodorant or disinfectant and under normal con
Referring to the drawings in which numerals of like
ditions, the water in the ?ush tank 5 is at the upper level
character designate similar parts throughout the several
X below the top of the over?ow pipe 13, and the dis
charge valve 7-9 is closed. Under these conditions,
FIGURE 1 is a top plan view of a ?ush tank equipped
with the disinfectant injecting device of the present in 35 the buoyancy of the auxiliary ?oat ball 31 maintains the
latter in its upper position shown in dotted lines in FIG
vention, the lid of the ?ush tank being omitted for clarity;
URE 2, thus having rocked arm 25 in clockwise direc
FIGURE 2 is a sectional view taken on line 2~—2. of
tion to maintain the disinfectant discharge valve 2tl~22
FIGURE 1; and
in closed position, preventing any discharge of disinfectant
FIGURE 3 is an enlarged sectional detail of the auxil
40 from the reservoir 18. Upon ?ushing the bowl by op~
iary disinfectant container and control valve.
crating the handle 11 in the conventional manner, the
In the drawings, 5 generally represents a conventional
discharge valve 7—'9 is opened to permit the discharge
?ush tank mounted adjacent a toilet bowl 6, partially
of the water from the ?ush tank 5 through the connection
shown in FIGURE 2 and having the usual ?ushing out
8 into the bowl 6, whereupon the main ?oat assembly 16
let valve 7 which discharges from the tank 5 into the
bowl 6 through an extension 8. The valve 7 is closed 415 drops until the bulb 9 has seated itself in the valve 7 to
permit the building up of a water level in the tank 5.
by a conventional bulb 9 carried at the lower end of a
During the ?ushing operation, the auxiliary ?oat ball 31
vertically shiftable rod 10, actuated in the usual man
remains in elevated position with the valve 20—22 closed
ner by a handle 11 connected thereto by a connecting
until the water level reaches its lower limit Y, whereupon
rod 12. An over?ow pipe 13 or" conventional form is
associated with the outlet valve assembly 7. A water 50 the float ball 31 drops to'its lowest position shown in full
lines, rocking the arm 25 in counterclockwise direction to
inlet pipe 14 (FIG. 1) is equipped with the usual valve
lift the valve body 22 from its seat 20. The opening of
15 which is controlled by ?oat assembly 16 connected
this valve 20—-22 permits disinfectant to ?ow from the
thereto by rod 17.
reservoir 13 through conduit 21 from which it is dis
The chemical disinfectant reservoir of the present in
vention is preferably formed as an auxiliary compartment 55 charged into the over?ow tube 13. As soon as the water
level rises in tank 5, the elevation of the ball 31 and rod
18 integrated wtih the main ?ush tank 5. This reservoir
30 again rocks the rocker arm 25 in clockwise direction
13 is disposed adjacent the rear wall of the tank 5 and
to close the valve 29-42, thereby preventing any further
extends from end to end thereof, having a bottom 19
discharge of disinfectant into the bowl.
which preferably slopes from its boundaries to a centrally
It will be understood that the re?ll tube 15a feeds water
located discharge valve 20.
into the bowl 6 through the bypass or over?ow tube 13 to
The valve 29 is connected to a conduit 21 discharg
the lip of the trap in the bowl. Valve § is closed as the
ing into the open upper end of the over?ow pipe 13
disinfectant is entering the bowl through the over?ow
which communicates with the bowl 6 in the conventional
tube 13. The disinfectant stays on top of the water in
manner, the discharge end of conduit 21 being disposed
the bowl. Thus, when the next ?ush takes place, this dis
alongside of the usual re?ll tube 15a, leading from inlet
infectant on the water swirls, cleansing the bowl. The
valve 15. A disinfectant discharge valve body 22 opens
re?ll tube 15a washes the disinfectant into the bowl
and closes the valve 20 and is carried at the lower end
through the over?ow tube 13.
of an actuating stem 23 which is pivotally mounted at 24
It will thus be seen that by adjusting the vertical position
on a rocker arm 25 which, in turn, is pivotally supported
at 26 on a vertical bracket 27, rigidly fastened by anv 70 of the ball 31 on the lower end of the rod 30 and adjusting
the position of the valve body 22 on the stem 23 in the
suitable means as at 28, to the front wall of the reservoir
reservoir 18, a very accurate regulation of the time and
extent of operation of the auxiliary valve body 22 can be
maintained. In other words, the vertical position of the
ball31 with respect tothe lower-level Y of the water in
the flush tank 5, determines when the auxiliary valve body
22 opens and the length of its discharge period. Also, said
adjustment of the vertical position of, the ?oat ball 31,
over?ow tube, a discharge valve controlling the ?ow of
disinfectant through said conduit, a rocker arm pivotally
connected to said discharge valve at one end, an actuating
rod pivotally connected to the opposite end of said rocker
arm and depending vertically in said tank to a point in
relatively close proximity to said lower liquid level limit,
an auxiliary ?oat ?xed to the lower end of said actuating
together with the adjustment of the valve body 22 on the
rod, normally lying below the liquid level in said tank
stem 23, determines the extent of opening of the valve
and thereby normally under a sustained upward force of
body 22 withrespect to the valve seat 20.
10 buoymcylto maintain said discharge valve in closed posi
By regulating the operation of the disinfectant discharge
so that it will not function until the completion of the
?ushing operation, disinfectant is not introduced into the
bowl until after the flush tank has been emptied so that
disinfectant is not wasted. Furthermore, by the means
of adjustment previously described, the amount of disin
fectant injected may be adjusted from a quantity of 1A2
ounce to 1 ounce, depending upon the desire of the
I operator.
tion, said auxiliary ?oat being responsive to the drop of the
liquid level in said tank to said lowermost limit, solely at
the conclusion of the ?ushing thereof and after the closing
of said ?ush valve to open said disinfectant discharge valve
for activating said injection system, and at the inception
of the re?lling. of said tank to close said disinfectant dis
charge valve, and means on said actuating rod for adjust
ing the position of said auxiliary ?oat thereon for regulat
ing the start of descent of said rod and auxiliary ?oat with
From the foregoing, it is believed that the invention may 20 respect to the level of the liquid in said tank, and for
be readily understood by those skilled in the artwithout
furtherdescription, it being bornein mind that numerous
changes may be made in the details disclosed without
departing from the spirit of the invention as set forth in
the following claim.
I claim:
In a toilet ?ush tank and bowl assembly including a
,main tank having a manually controlled ?ushing valve
leading to a toilet bowl and de?ning the lowermostlimit
_ of the liquid level in said tank, a water inlet valve in said 30
tank, a main ?oat for controlling said inlet valve and
de?ning the uppermost limit of the liquid level in said
tmk, and an over?ow tube from said tank to said bowl
‘having its inlet opening normally disposed above said
upper limit; a disinfectant injection system for depositing
regulating the timing of the activation of said auxiliary
?oat upon the rise of the liquid level during the re?lling
:of said tank, to thereby control the timing of the closing
of said disinfectant discharge valve and the volume of
disinfectant discharged into said bowl.
References Cited in the ?le of this'patent
'Nobes _'_____ __ ________ __ Feb. 26, 1884
Schell _______________ __ Sept. 19,
Cox et a1 _____________ “ Mar. 27,
Collinge et al __________ __ May 27,
Donovan _____________ __ Apr. 18,
Majo ________________ __ Feb. 28,
a quantity of disinfectant on topof the water in said bowl
at the conclusion of each flushing operation, said system
comprising a disinfectant reservoir in said tank, a conduit
leading from said reservoir to the inlet opening of said
Great Britain __________ __ Jan. 29, 1920
Great Britain __________ __ May 20, 1929
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