U.S. patent number 3,698,021 [Application Number 05/012,039] was granted by the patent office on 1972-10-17 for automatic toilet bowl cleaner dispenser.
This patent grant is currently assigned to The Drackett Company. Invention is credited to Frank Joseph Mack, Terry John Simpkins.
United States Patent |
3,698,021 |
Mack , et al. |
October 17, 1972 |
AUTOMATIC TOILET BOWL CLEANER DISPENSER
Abstract
This invention relates to a dispenser for releasing a measured
amount of fluid into the flush tank of a toilet. The dispenser
consists of a container having an open neck, a shroud which fits
over the neck and restricts the discharge opening in the neck, and
a float member slidably connected to the shroud which in one of its
positions seals the discharge opening. A measuring chamber is
formed in the float element in direct communication with the
discharge opening. The entire container is inverted in the toilet
flush tank in such a manner that the float member rises and falls
with the flushing action of the toilet. In the upper position the
float member closes the discharge opening and in the lower position
the measuring chamber fills with fluid. As the float member rises
after the measuring chamber is filled, the fluid is forced out of
the chamber through openings therein and into the toilet flush
tank.
Inventors: |
Mack; Frank Joseph (Miamiville,
OH), Simpkins; Terry John (Dublin, OH) |
Assignee: |
The Drackett Company
(Cincinnati, OH)
|
Family
ID: |
21753089 |
Appl.
No.: |
05/012,039 |
Filed: |
February 17, 1970 |
Current U.S.
Class: |
4/227.3 |
Current CPC
Class: |
E03D
9/037 (20130101); E03D 2009/028 (20130101) |
Current International
Class: |
E03D
9/02 (20060101); E03D 9/03 (20060101); E03d
009/02 () |
Field of
Search: |
;4/222,227,228,231
;248/70,106,122,225,495 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
526,597 |
|
Mar 1954 |
|
BE |
|
439,506 |
|
Dec 1935 |
|
GB |
|
Primary Examiner: Matteson; Frederick L.
Assistant Examiner: Massenberg; Donald B.
Claims
I claim:
1. A package for dispensing a measured amount of fluid into a
toilet flush tank comprising:
a. A liquid container having a body and an open neck portion;
b. A shroud mounted concentrically over the neck portion and
extending outward therefrom having an inner restricting means which
engages and restricts the container neck opening;
c. A float member slidably and concentrically mounted on the shroud
having upper and lower segments, the upper of which being adjacent
to the container neck portion;
d. An air bell constructed in the lower segment of the float
member;
e. A measuring chamber constructed in the upper segment of the
float member in communication with the restricted opening of the
neck portion, said measuring chamber having a discharge outlet and
means for engaging the restricted neck opening in a sealed relation
at the upper most position of the float member's sliding motion;
and
f. Means for mounting the dispensing package on the wall of a fluid
tank in an inverted position so that the float member rises and
falls with the fluid level in the tank.
2. A dispensing package for a liquid as described in claim 1
wherein the means for mounting the dispensing package on the toilet
flush tank wall comprises:
a. An L-shaped bracket slidably mounted at the base of the
container for lateral movement transverse to the longitudinal axis
of the container, said movement limited between two positions, one
at which the L-shaped bracket conforms to the contour of the
container, the other at which the stem of the bracket, which
normally runs along the side of the container, is displaced from
the side of the container so that the wall of the toilet flush tank
may be engaged there between.
3. A dispensing package for a liquid as described in claim 1
wherein the shroud comprises:
a. A cylindrical plastic segment engaging the container body in
threaded relation; and
b. An inner cap substantially conforming to the contour of the neck
portion, integrally molded into the inner surface of the
cylindrical segment and engaging the neck portion when the shroud
is in its assembled position, said inner cap having an opening in
direct restricting communication with the neck opening.
4. A dispensing package for a liquid as described in claim 1
wherein the float member comprises:
a. A cylindrical plastic segment having an interior transverse wall
dividing said segment into upper and lower portions, the upper of
which is adjacent to the neck portion;
b. A guide bead molded into the periphery of the upper end of the
cylindrical segment and extending transversely outward therefrom
for engagement with a mating guide bead similarly molded into the
inner surface of the shroud, said beads positioned so that they
engage in the lower most sliding position of the float member
thereby preventing complete withdrawal of the float member.
5. A dispensing package for a liquid as described in claim 4
wherein the means for engaging the restricted neck opening
comprises:
a. A projection molded into the dividing wall of the cylindrical
segment and extending upward therefrom, said projection positioned
to engage the restricted neck opening in a sealed relation when the
float member is in its upper most sliding position.
6. A dispensing package for a liquid as described in claim 4 which
is provided with an overall closure which is threaded over the
neck, shroud and float member assembly, said closure having an
inner retaining tube which engages the dividing wall of the float
member to maintain the float member in its sealed position when the
package is not in use.
7. A package for dispensing a measured amount of fluid into a
toilet flush tank comprising:
a. A plastic liquid container having a body and an open neck
portion;
b. A shroud mounted concentrically over the neck portion and
engaging the container body in threaded relation, said shroud
comprising a cylindrical plastic segment having an inner cap
substantially conforming to the contour of the neck portion
integrally molded into its inner surface and engaging the neck
portion when the shroud is in its assembled position, said inner
cap having an opening in direct restricting communication with the
neck opening;
c. A float member slidably and concentrically mounted inside the
shroud comprising a cylindrical plastic segment having an interior
transverse wall dividing said segment into upper and lower
portions, the upper of which being adjacent to the neck portion in
its assembled position and a guide bead molded into the periphery
of the upper end of the cylindrical segment and extending
transversely outward therefrom for engagement with a mating guide
bead similarly molded into the inner surface of the shroud, said
beads positioned so that they engage in the lower most sliding
position of the float member thereby preventing complete withdrawal
of the float member;
d. An air bell constructed in the lower portion of the float
member;
e. A measuring chamber constructed in the upper portion of the
float member in communication with the restricted opening of the
neck, said measuring chamber having a discharge outlet and means
for engaging the restricted neck opening which comprises a
projection molded into the dividing wall of the cylindrical segment
and extending upward therefrom said projection positioned to engage
the restricted neck opening in a sealed relation when the float
member is in its upper most sliding position;
f. An L-shaped bracket slidably mounted at the base of the
container for lateral movement transverse to the longitudal axis of
the container, said movement limited between two positions, one at
which the L-shaped bracket conforms to the contour of the
container, the other at which the stem of the bracket, normally
engaging the side of the container, is displaced therefrom in order
that the wall of the toilet flush tank may be engaged there between
thereby mounting the package in a position so that the float member
rises and falls with the water in the flush tank as the toilet is
flushed; and
g. An overall closure threaded over the neck, shroud and float
member assembly, said closure having an inner retaining tube which
engages the dividing wall of the float member to maintain the float
member in its sealing position when the package is not in use.
8. A mounting bracket for a container comprising an L-shaped
element having a stem portion and a base portion slidably mounted
on the container for limited movement between two positions, one at
which the L-shaped element conforms to the contour of the
container, the other at which the stem portion is displaced from
the side of the container so that the article upon which the
container is to be mounted may be engaged there between, said
container having an L-shaped slot with a base portion and a stem
portion constructed in the bottom and side walls respectively
thereof, the slot accommodating said L-shaped element when said
element is in the conforming position.
Description
The purpose of this invention is to provide a novel container for
automatically dispensing a cleanser or disinfectant into a toilet
bowl.
Another object of this invention is to provide a flexible package
for a toilet bowl cleanser suitable for the retail market which
also acts as a dispenser without adjustment when placed in the
proper position.
This invention is also intended to provide an easily moldable
dispenser package which has a minimum of critical tolerances.
Another object of this device is to provide an accurate and
reliable dispenser for a measured amount of fluid.
BACKGROUND OF INVENTION
Many devices are presently available which attempt in various ways
to dispense a cleanser into a toilet bowl. These devices have many
problems. Generally they dispense inconsistant amounts of cleanser
or allow water to leak into the container thereby diluting the
cleanser and greatly hindering the product's effectiveness. A few
packages require substantial adjustments before they may be used as
a dispenser. Other products which overcome these problems require
intricate molding steps under close tolerances. Some units are
inoperable unless constructed from a rigid material such as glass
or require complicated inserts which prevent complete emptying of
the container. There is no toilet bowl dispenser package presently
existing that avoids all of these problems while using an easily
moldable flexible plastic which may be attractively finished. The
subject invention overcomes the problems and provides a simply
manufactured, easily used, accurate and effective toilet bowl
cleanser dispenser package.
Other advantages will become apparent from the more detailed
description which follows.
FIG. 1 is a cut-away view of a toilet reservoir showing the subject
dispenser mounted therein.
FIG. 2 is a sectional view taken along the axis of the dispenser in
the closed position (overcap in place).
FIG. 3 is a sectional view similar to FIG. 2 with the overcap
removed and the dispenser inverted.
FIG. 4 is a perspective view of the mounting clip.
DESCRIPTION OF INVENTION
The preferred embodiment of this invention basically comprises
container 1 having an open neck 2, a shroud 3 screwed over neck 2
and float member 5 slidably mounted on the inside of shroud 3. In
the more detailed description which follows all directions shall
refer to the container in its normal operating position, namely
inverted.
More specifically the cylindrical shroud 3 has an interior
integrally molded restricting cap 4 which fits over neck 2. The
restricting cap 4 has a discharge opening 8 which communicates with
the neck opening and restricts its size. The float member includes
an air bell 7 and a measuring chamber 6 which communicates directly
with discharge opening 8. The measuring chamber 6 consists of a
small container having an upper open end 9 for receiving fluid from
discharge opening 8 and a bottom floor or dividing wall 14. When
the float is in its upper most position as can be best visualized
from FIG. 3, the chamber 6 surrounds the bottom of neck 2 and cap 4
with the lower surface of cap 4 engaging measuring chamber floor
14. Molded integrally with chamber 6 and extending downward
therefrom is air bell 7 which comprises an enclosure having an open
end at its lower extremity. The bottom floor 14 of the chamber 6 is
provided with a projection 11 which in the upper most float
position engages the discharge opening 8 in a sealing relation. The
measuring chamber 6 is provided with outer guide ridge bead 13
which engages float stop bead 12 molded into the interior wall of
shroud 3. It is observed that the float member 5 is free to slide
from a position where projection 11 engages discharge opening 8 and
a position where ridge 13 engages stop 12. Outlets 10 are
constructed in the side of the measuring chamber 6 which allows
cleanser to be dispensed from the chamber 6.
An overall cap or closure 20 is provided having retaining tube 21.
The cap is threaded over the dispenser assembly so that retaining
tube 21 engages the outer side of floor 14 to maintain the float
member 5 in its sealing position during shipment and storage.
OPERATION
In operation the entire container is inverted in the toilet flush
tank as shown in FIG. 1, in a position which will allow the air
bell 7 to contact the water in the tank at the high level point.
The unit is further positioned sufficiently deep in the water at
the high level mark so that the buoyant force acting on the air
bell 7 maintains the projection 11 of the measuring chamber 6 in
sealed relation with the discharge opening 8. The dispenser is
activated by the reduction of the water level in the tank as the
toilet is flushed. The float member 5 will then fall to its lower
position and open the container discharge opening 8 allowing the
measuring chamber to fill with cleanser or disinfectant. The
cleanser will flow until the level in the measuring chamber reaches
the neck of the bottle and forms an air lock in the surrounding
area within the shroud. It is seen that the amount of cleanser
dispensed can be fairly accurately controlled by varying the depth
of the measuring chamber. As the tank fills to its high water mark
the float member 5 is forced upwards to its original position
thereby displacing the fluid in the measuring chamber 6 from the
outlets 10 into the tank. This process is repeated with every flush
and dispenses an accurate measured amount of toilet bowl
disinfectant or cleanser in the toilet tank each time.
An L-shaped mounting bracket 15 is provided at the base of the
package as shown in FIG. 4, so that the dispenser may be mounted on
the wall of the toilet flush tank 16 in the inverted position as
shown in FIG. 1. Basically this bracket comprises an L-shaped
member constructed of flexible plastic. The base 17 of the L
bracket 15 fits into slot 18 molded into the bottom wall of the
container 1 and is slidably mounted therein. The stem 19 of the L
bracket 16 extends downward along the vertical face or side wall of
the container and fits into a corresponding slot molded into that
side wall. The bracket 16 is manually slidable between two
positions; the normal position where it conforms substantially to
the periphery or outer contour of the container walls and a second
position where it's stem 19 is displaced from the container so that
it may be hooked over the toilet reservoir wall.
In the preferred embodiment all the components are molded entirely
of plastic and it is observed that this can be done with a minimum
of precise requirements. The parts are easily molded and assembled.
Nevertheless, they function accurately, efficiently and
dependably.
* * * * *