U.S. patent application number 11/409675 was filed with the patent office on 2006-11-02 for flush valve cleaner dispenser system.
Invention is credited to Christopher A. Coppock.
Application Number | 20060242754 11/409675 |
Document ID | / |
Family ID | 37215434 |
Filed Date | 2006-11-02 |
United States Patent
Application |
20060242754 |
Kind Code |
A1 |
Coppock; Christopher A. |
November 2, 2006 |
Flush valve cleaner dispenser system
Abstract
A toilet cleaner dispenser system is centered above an overflow
tube and configured to deliver cleanser solution directly to the
overflow tube without a hose. A disposable cartridge containing a
cleanser tablet is removably coupled to a dispenser housing. Refill
water is directed to the housing through an inlet and brought into
contact with the cleanser tablet to form a cleanser solution. The
cleanser solution exits an outlet of the housing into a receptacle
which directs the solution downwardly and directly into the
overflow tube. Inlet and outlet water traps prevent fumes from
escaping the housing.
Inventors: |
Coppock; Christopher A.;
(Laguna Niguel, CA) |
Correspondence
Address: |
Vic Lin;Myers Dawes Andras & Sherman LLP
Suite 1150
19900 MacArthur Blvd.
Irvine
CA
92612
US
|
Family ID: |
37215434 |
Appl. No.: |
11/409675 |
Filed: |
April 24, 2006 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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60675529 |
Apr 27, 2005 |
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Current U.S.
Class: |
4/224 |
Current CPC
Class: |
E03D 9/037 20130101 |
Class at
Publication: |
004/224 |
International
Class: |
E03D 9/02 20060101
E03D009/02 |
Claims
1. A toilet cleaner dispenser system for use in connection with a
flush valve in a toilet tank, the flush valve having an overflow
tube, comprising: a cleaning agent; and a housing disposed above
the overflow tube, the housing comprising an inlet and an outlet,
the inlet directing refill water to the cleaning agent to form a
cleanser solution, the outlet directing the cleanser solution to an
overflow tube without a hose.
2. The system of claim 2, further comprising: an inlet water trap;
and an outlet water trap.
3. The system of claim 1, further comprising a receptacle coupled
to a top of the overflow tube and configured to direct the cleanser
solution from the outlet to the overflow tube.
4. The system of claim 4, wherein the receptacle comprises an
annular top opening to receive excess water in the toilet tank and
to direct the excess water to the overflow tube.
5. The system of claim 1, further comprising a cartridge containing
the cleaning agent, the cartridge being removably coupled to the
housing.
6. A combination flush valve cleaner dispenser system, comprising:
an overflow tube; and a cleaning dispenser device disposed above
and coupled to the overflow tube, the cleaning dispenser device
including: a housing disposed above the overflow tube, the housing
including an inlet and an outlet, and a cleaning agent disposed at
least in part within the housing, wherein the outlet directs
solution to the overflow tube without a hose.
7. The system of claim 6, wherein: the cleaning agent comprises a
tablet; the cleaning dispenser device comprises a cartridge
containing the cleaning agent; and the cartridge is removably
coupled to the housing.
8. The system of claim 7, wherein the housing defines an opening
for receiving the removable cartridge.
9. The system of claim 6, further comprising: an inlet water trap;
and an outlet water trip.
10. The system of claim 6, further comprising a receptacle coupled
to the overflow tube, the receptacle being configured to direct
fluid from the outlet port to the overflow tube.
11. The system of claim 10, wherein the receptacle comprises an
annular top opening to receive excess water and to direct the
excess water to the overflow tube.
12. The system of claim 6, further comprising a siphonic cap
disposed on top of the overflow tube and positioned between the
overflow tube and the cleaning dispenser device.
13. A method for refilling a toilet bowl, comprising: directing
refill water from a fill valve to a housing containing a cleaning
agent; dissolving portions of the cleaning agent into the refill
water to form a cleanser solution; and directing a first portion of
the cleanser solution downwardly to an overflow tube without a
hose.
14. The method of claim 13, further comprising: storing a second
remaining portion of the cleanser solution in the housing; and
preventing fumes from escaping the housing.
15. The method of claim 14, wherein preventing the fumes from
escaping the housing further comprises blocking the fumes with at
least one water trap.
16. The method of claim 13, further comprising allowing overflow
water in a toilet tank to bypass the housing and go directly to the
overflow tube.
17. The method of claim 13, wherein the cleaning agent comprises a
first cleanser tablet held in a first disposable cartridge, the
method further comprising coupling the first disposable cartridge
to the housing.
18. The method of claim 17, further comprising: removing the first
disposable cartridge from the housing; and coupling a second
disposable cartridge containing a second cleanser tablet to the
housing.
Description
RELATED APPLICATIONS
[0001] This application relates to, claims priority from, and
incorporates herein by reference, as if fully set forth, U.S.
Provisional Patent Application Ser. No. 60/675,529 filed on Apr.
27, 2005 and entitled "INTEGRATED CLEANER DISPENSER WITH FLUSH
VALVE".
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present invention relates generally to cleaner dispenser
systems for toilets.
[0004] 2. Description of Prior Art and Related Information
[0005] Cleaning dispenser systems for toilets are commonly located
in the toilet tank. Since conventional dispensers are often
purchased as an add-on, after-market product, some common drawbacks
are associated with prior art dispensers.
[0006] For example, dispensers typically include clips in order to
fasten the dispenser to the wall of the toilet tank. These clips
often get in the way of the toilet lid being able to fully close on
the toilet tank.
[0007] Cleaning agents, such as tablets, which dissolve into the
refill water upon contact often generate harmful fumes that can
damage the interior components of the toilet tank. The need to
prevent the escape of fumes has led to awkward and bulky structures
that also cause the entire dispenser unit to take up the limited
space within the toilet tank. Accordingly, certain dispenser units
in the prior art do not enable the lid to close on a standard
toilet tank, thereby creating a rocking or tilted appearance which
is undesirable.
[0008] To conserve the cleaning agent and thus maximize its usage
and lifespan, it is desirable to not dissolve the agent in the
flush water that drains the toilet bowl, but only in the refill
water that fills the bowl after the flush. This way, a lesser
amount of the cleaning agent is used with each flush, and the
cleaning agent is used more efficiently as it is not being wasted
with flushing water. To accomplish this, the cleaning agent must be
fluidly coupled to the water line that refills the bowl, namely,
between the fill valve and the overflow tube. Such an arrangement
have required a variety of hoses, clips and mechanical fasteners in
order to provide fluid communication from the dispenser unit to the
overflow tube. Hoses can come loose, thereby dumping harmful
chemicals into the toilet tank without the awareness of the
consumer.
[0009] Add-on dispenser units in the prior art also present
fluctuations in the water level therein, caused by the height
differences between the top of an overflow tube and the mounting
location of the unit. Thus, the concentration of the cleanser
solution exiting such a prior art dispenser unit may vary with each
toilet depending upon these height differences.
SUMMARY OF THE INVENTION
[0010] The present invention provides structures and methods which
overcome the deficiencies in the prior art.
[0011] In one aspect, a toilet cleaner dispenser system is provided
for use in connection with a flush valve in a toilet tank. The
flush valve has an overflow tube. The system comprises a cleaning
agent, and a housing disposed above the overflow tube, the housing
comprising an inlet and an outlet, the inlet directing refill water
to the cleaning agent to form a cleanser solution, the outlet
directing the cleanser solution to an overflow tube without a
hose.
[0012] The system further comprises an inlet water trap and an
outlet water trap. A receptacle is coupled to a top of the overflow
tube and configured to direct the cleanser solution from the outlet
to the overflow tube without need of a connecting hose. The
receptacle preferably comprises an annular top opening to receive
excess water in the toilet tank and to direct the excess water to
the overflow tube. The system also comprises a cartridge containing
the cleaning agent. The cartridge being is removably coupled to the
housing.
[0013] In an alternative embodiment, a siphonic cap disposed on top
of the overflow tube and positioned between the overflow tube and
the housing.
[0014] In another aspect, a combination flush valve cleaner
dispenser system is provided. The system comprises an overflow tube
and a cleaning dispenser device disposed above and coupled to the
overflow tube. The cleaning dispenser device includes a housing
disposed above the overflow tube. The housing includes an inlet and
an outlet. A cleaning agent is disposed at least in part within the
housing. The outlet directs solution to the overflow tube without a
hose.
[0015] The cleaning agent preferably comprises a tablet. The
cleaning dispenser device preferably comprises a cartridge
containing the cleaning agent. The cartridge is removably coupled
to the housing. The housing defines an opening for receiving the
removable cartridge. The system further comprises an inlet water
trap and an outlet water trap.
[0016] The system further comprises a receptacle coupled to the
overflow tube. The receptacle is configured to direct fluid from
the outlet port to the overflow tube. The receptacle comprises an
annular top opening to receive excess water and to direct the
excess water to the overflow tube.
[0017] In an alternative embodiment, the system further comprises a
siphonic cap disposed on top of the overflow tube and positioned
between the overflow tube and the cleaning dispenser device.
[0018] A method for refilling a toilet bowl with a cleanser
solution is also provided. The method comprises directing refill
water from a fill valve to a housing containing a cleaning agent,
dissolving portions of the cleaning agent into the refill water to
form a cleanser solution, and directing a first portion of the
cleanser solution downwardly to an overflow tube without a
hose.
[0019] The method further comprises storing a second remaining
portion of the cleanser solution in the housing, and preventing
fumes from escaping the housing. The step of preventing the fumes
from escaping the housing further comprises blocking the fumes with
at least one water trap, and preferably with two water traps.
[0020] The method further comprises siphoning overflow water in a
toilet tank to the overflow tube.
[0021] Where the cleaning agent preferably comprises a first
cleanser tablet held in a first disposable cartridge, the method
further comprises coupling the first disposable cartridge to the
housing. The method further comprises removing the first disposable
cartridge from the housing, and coupling a second disposable
cartridge containing a second cleanser tablet to the housing.
[0022] In summary, a toilet cleaner dispenser system is centered
above an overflow tube and configured to deliver cleanser solution
directly to the overflow tube without a hose. A disposable
cartridge containing a cleanser tablet is removably coupled to a
dispenser housing. Refill water is directed to the housing through
an inlet and brought into contact with the cleanser tablet to form
a cleanser solution. The cleanser solution exits an outlet of the
housing into a receptacle which directs the solution downwardly and
directly into the overflow tube. Inlet and outlet water traps
prevent fumes from escaping the housing.
[0023] The invention, now having been briefly summarized, may be
better appreciated by the following detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] FIG. 1 is a perspective, exploded view of a preferred
embodiment of a cleaner dispenser system according to the
invention;
[0025] FIG. 2 is a perspective view of the preferred embodiment of
the cleaner dispenser system in a toilet tank;
[0026] FIG. 3 is a side view of the preferred embodiment of the
cleaner dispenser system;
[0027] FIG. 4 is a cross-sectional side view of the cleaner
dispenser system;
[0028] FIG. 5 is a cross-sectional side view of the cleaner
dispenser system during a flush;
[0029] FIG. 6 is a cross-sectional side view of the cleaner
dispenser system at a rest state; and
[0030] FIG. 7 is a diagram of a preferred method refilling a toilet
bowl with a cleanser solution.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0031] The invention and its various embodiments can now be better
understood by turning to the following detailed description wherein
illustrated embodiments are described. It is to be expressly
understood that the illustrated embodiments are set forth as
examples and not by way of limitations on the invention as
ultimately defined in the claims.
[0032] FIG. 1 is an exploded, perspective view of a toilet cleaner
dispenser system 10. The system 10 may comprise a flush valve 20
having an overflow tube 22. Alternatively, the system 10 may
comprise a unit that is configured to be coupled to an existing
overflow tube A coupling joint may be employed to couple the system
10 an overflow tube, thereby allowing the manufacture of various
overflow tube heights.
[0033] In FIGS. 1 and 2, the dispenser system 10 comprises a
dispenser housing 24. The dispenser housing 24 includes an inlet 26
and an outlet 28. In the preferred embodiment, the inlet 26 is
upwardly facing while the outlet 28 is generally downwardly facing.
A cartridge 30 containing a cleaning agent 32, preferably in the
form of a tablet or granules, is removably coupled to the dispenser
housing 24. As shown in FIG. 4, the outlet 28 comprises a generally
horizontal section, or conduit, 29 in fluid communication with a
generally vertical section, or conduit, 31. In particular, the
cartridge 30 is disposed in an opening, or cavity, 34 defined in
the dispenser housing 24. The cartridge 30 may comprise external
threads 36 for mating with threads 37 in the opening 34. As shown
more clearly in FIG. 4, the inlet 26 comprises a pair of nested
tubes 38, 39 that collectively form an inlet water trap.
[0034] In FIG. 1, the dispenser housing 24 comprises a main body 41
that is preferably cylindrical. A dome-shaped top cap 43 covers the
cylindrical main body 41. The inlet 26 preferably extends through a
hole 45 in the cap 43. In the preferred embodiment shown more
clearly in FIG. 4, the inlet 26 comprises a first snap-on inlet cap
47 and the outlet 28 comprises a second snap-on outlet cap 49. A
third cap, or base, 69 is snapped onto a bottom of the housing 24.
This three-piece snap-on design for the dispenser housing 24 will
be appreciated by those skilled in the art as manufacturing is
greatly simplified and no sonic welding of these components is
required. Furthermore, the number of parts is reduced, thereby
reducing complexity and saving costs in manufacturing.
[0035] In FIGS. 1-3, a receptacle 52 is formed at the top of the
overflow tube 22. In the preferred embodiment, the receptacle 52
has an open top 53 for receiving the dispenser housing 24. As shown
in FIGS. 1 and 4, the receptacle 52 includes a vertical wall 54
that defines a compartment 56 for receiving the outlet 28. As
described further below, the vertical wall 54 also helps to form a
water outlet trap to prevent harmful fumes from escaping the
dispenser housing 24. The receptacle 52 also defines a basin, or
reservoir, 58 for receiving a substantial portion of the
cylindrical body 41 of the dispenser housing 24. The receptacle 52
further includes a top rim 59 that is flared out, or conical, so as
to assist in supporting the upper portions of the dispenser housing
24.
[0036] In FIG. 4, the cartridge 30 containing the cleaning tablet
32 is inserted, or preferably screwed, into the opening 34 of the
dispenser housing 24. The dispenser housing 24 and the removably
coupled cartridge 30 collectively forms a unit 61, as shown in FIG.
1, that is disposed at least partially within the receptacle 52. In
particular, the cylindrical body 41 of the dispenser housing 24
sits on top of ribs 63 that extend radially inward from an inner
surface of the receptacle 52. The ribs 63 help to center the unit
61. In the preferred embodiment, the ribs 63 also provide platforms
65 for supporting ring 67 at a base 69 of the dispenser housing 24.
This spaces the base 69 of the dispenser housing 24 from a top
shoulder 72 of the overflow tube 22 so as to prevent the unit 61
from sealing the overflow tube 22.
[0037] The operation of the system 10 will now be described in
reference to FIGS. 4 and 5. In FIG. 5, refill water, indicated by
the stippling, is directed from a fill valve (not shown) to the
inlet 26. In particular, water enters the top tube 38 and fills the
bottom tube 39 until it overflows into a passage 76 that directs
the water into the opening 34. As the water level rises from the
bottom of the opening 34, it permeates the cartridge 30 through
side ports 78 and bottom ports 80 to come into contact with the
cleaning tablet 32. A cleanser solution is formed as a result of
the refill water coming into contact with the cleaning tablet
32.
[0038] As the water level of the cleanser solution rises to a
height at or above the horizontal conduit 29 of the outlet 28, the
cleanser solution then travels through the horizontal conduit 29
and down the vertical conduit 31 of the outlet 28. The cleanser
solution then fills the compartment 56 until it flows over the
vertical wall 54. As the cleanser solution overflows the
compartment 56, it is directed downward from the basin 58 to the
overflow tube 22 to the final destination of the toilet bowl.
[0039] It will be appreciated that the preferred dispenser system
10 causes the cleanser solution to exit the dispenser housing 24
directly into the overflow tube 22 without need of a connecting
hose or any other intermediary structure that could possibly become
dislodged. This eliminates any chance of an outlet hose becoming
loose and dumping harmful chemicals and fumes into the toilet tank.
The costs and additional complexities of outlet hoses and clips can
be avoided altogether with the preferred system 10 according to the
invention. It will further be appreciated that mounting hooks for
mounting prior art dispensers to the wall of a toilet tank are
eliminated altogether with the present invention.
[0040] FIG. 6 illustrates the system 10 at a rest state in between
flushes. In particular, a first inlet water trap is formed at the
inlet 26 by virtue of the pair of oppositely extending tubes 38, 39
that are disposed in a nesting relationship. At the rest state,
water in the inlet 26 is at least partially disposed in the
downwardly extending tube 38 and the upwardly extending tube 39 to
form the first water trap that blocks and prevents fumes from
escaping the housing 24 through the inlet 26. A second outlet water
trap is formed adjacent to the outlet 28 as a result of the
vertical conduit 31 and the dividing wall 54. At the rest state,
water is carried in the compartment 56 and is at least partially
disposed in the vertical conduit 31 to form the second water trap
that blocks and prevents fumes from escaping the housing 24 through
the outlet 28. It will be appreciated that any fumes caused by the
water coming into contact with the cleaning agent 32 is entirely
sealed within the dispenser housing 24 and prevented from escaping
out to the toilet tank.
[0041] In the rest state, the water level of the cleanser solution
remaining in the dispenser housing 24 consistently remains at a
height beneath the horizontal conduit 29 as shown in FIG. 6. This
enables the system 10 to provide a consistent concentration of
cleanser solution with each flush as the water level remaining in
the dispenser in the rest state does not fluctuate. It will be
appreciated that this self-contained system 10 eliminates the
fluctuations in the concentration of the cleanser solution in prior
art dispensers, which fluctuations were due to the height
differences between the top of the overflow tube and the mounting
location of the prior art dispenser.
[0042] It will also be appreciated that the lifespan of the
cleaning agent 32 in the cartridge 30 may be controlled very
precisely by determining the height of the outlet 28, primarily the
horizontal conduit 29. In particular, providing a dispenser housing
24 with a higher horizontal conduit 29 causes a higher level of
solution to remain in the housing 24, thereby dissolving more of
the cleaning agent 32 with each flush. Such a higher outlet 28
would lead to a shorter lifespan of the cleaning agent 32.
Conversely, a dispenser housing 24 with a horizontal conduit at a
shorter height would leave a lower level of solution in the housing
24. This would dissolve less of the cleaning agent 32 per flush,
which in turn leads to a longer life span of the cleaning agent
32.
[0043] The preferred dispenser system 10 may include the overflow
tube 22 such that the system 10 comprises a combination of a flush
valve and a cleaner dispenser. Alternatively, the dispenser system
10 may be coupled to, or retrofitted unto, an existing overflow
tube of an existing toilet. In either case, the dispenser system 10
is centered right above the overflow tube and positioned at a short
enough height to enable a standard toilet lid to close completely.
This is not possible with certain prior dispensers which had to be
mounted to the wall of the toilet tank with a mounting hook,
thereby causing the toilet lid is be at least slightly propped
open. Whereas prior art dispenser systems competed for the same
space occupied by flush valves, the system 10 according to the
invention saves space by being integrated with the overflow
tube.
[0044] In the first preferred embodiment illustrated in FIGS. 1-6,
the receptacle 52 is separate from the dispenser unit 61. The
receptacle 52 is configured to loosely carry the unit 61 in the
sense that there is no mechanical coupling or attachment between
the receptacle 52 and dispenser unit 61, even though the dispenser
unit 61 is securely held and supported by the receptacle 52. It is
to be expressly understood that the dispenser unit 61 and
receptacle 52 may be formed as an integral, unitary structure which
may then be formed on top of an overflow tube or be retrofitted
onto an existing overflow tube.
[0045] The system 10 may also be provided as a kit comprising a
permanent dispenser housing 24 and a plurality of disposable
cleaner cartridges 30. Accordingly, once the cleaning agent 32 is
depleted, the current cartridge 30 may be removed from the housing
24 and new disposable cartridge 30 may be inserted in its
place.
[0046] FIG. 7 illustrates a preferred method 100 for refilling a
toilet bowl with a cleanser solution. The method 100 comprises a
step 110 of directing refill water into a housing carrying a
cleaning agent. Step 120 includes bringing the refill water in the
housing into contact with the cleaning agent to form a cleanser
solution. This step 120 may comprise directing the refill water
into contact with a cleaning agent held inside a cartridge
removably coupled to the housing.
[0047] Step 130 comprises directing the cleanser solution from the
dispenser housing to an overflow tube without a hose. This step 130
may include positioning the dispenser housing directly above the
overflow tube.
[0048] Step 140 comprises preventing fumes from escaping the
dispenser housing. This step 140 comprises blocking the fumes in
the dispenser housing from exiting with a first inlet water trap
and a second outlet water trap. Step 150 includes storing a
remaining portion of cleanser solution in the housing at a rest
state in between flushes.
[0049] In the event of an overflow of water in the toilet tank,
step 160 comprises allowing the overflow water in the toilet tank
to go directly to the overflow tube while bypassing the dispenser
system. This may be accomplished with a variety of structures,
including, but not limited to, a bypass conduit with an open top
positioned at a height above the normal toilet tank water level.
Such a bypass conduit may be coupled to the receptacle or the
overflow tube.
[0050] The method 100 also includes a step 170 of coupling a first
disposable cartridge containing the cleaning agent, preferably in
the form of a cleanser tablet, to the housing. In Step 180, the
first disposable cartridge is removed from the housing when the
cleaning agent, or cleanser tablet, is depleted. Step 190 comprises
removably coupling a second disposable cartridge containing a
second cleanser tablet to the housing.
[0051] Many alterations and modifications may be made by those
having ordinary skill in the art without departing from the spirit
and scope of the invention. Therefore, it must be understood that
the illustrated embodiments have been set forth only for the
purposes of examples and that they should not be taken as limiting
the invention as defined by the following claims. For example,
notwithstanding the fact that the elements of a claim are set forth
below in a certain combination, it must be expressly understood
that the invention includes other combinations of fewer, more or
different elements, which are disclosed in above even when not
initially claimed in such combinations.
[0052] The words used in this specification to describe the
invention and its various embodiments are to be understood not only
in the sense of their commonly defined meanings, but to include by
special definition in this specification the generic structure,
material or acts of which they represent a single species.
[0053] The definitions of the words or elements of the following
claims are, therefore, defined in this specification to not only
include the combination of elements which are literally set forth.
In this sense it is therefore contemplated that an equivalent
substitution of two or more elements may be made for any one of the
elements in the claims below or that a single element may be
substituted for two or more elements in a claim. Although elements
may be described above as acting in certain combinations and even
initially claimed as such, it is to be expressly understood that
one or more elements from a claimed combination can in some cases
be excised from the combination and that the claimed combination
may be directed to a subcombination or variation of a
subcombination.
[0054] Insubstantial changes from the claimed subject matter as
viewed by a person with ordinary skill in the art, now known or
later devised, are expressly contemplated as being equivalently
within the scope of the claims. Therefore, obvious substitutions
now or later known to one with ordinary skill in the art are
defined to be within the scope of the defined elements.
[0055] The claims are thus to be understood to include what is
specifically illustrated and described above, what is
conceptionally equivalent, what can be obviously substituted and
also what incorporates the essential idea of the invention.
* * * * *