WO2011049618A1 - Dispositif de nettoyage de cuvette de toilettes par pulvérisation sans contact - Google Patents

Dispositif de nettoyage de cuvette de toilettes par pulvérisation sans contact Download PDF

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Publication number
WO2011049618A1
WO2011049618A1 PCT/US2010/002788 US2010002788W WO2011049618A1 WO 2011049618 A1 WO2011049618 A1 WO 2011049618A1 US 2010002788 W US2010002788 W US 2010002788W WO 2011049618 A1 WO2011049618 A1 WO 2011049618A1
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WO
WIPO (PCT)
Prior art keywords
fluid
spray
nozzle
spray bar
bar
Prior art date
Application number
PCT/US2010/002788
Other languages
English (en)
Inventor
Jesse Richard
David A. Smith
William R. Kissner
Original Assignee
S. C. Johnson & Son, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by S. C. Johnson & Son, Inc. filed Critical S. C. Johnson & Son, Inc.
Publication of WO2011049618A1 publication Critical patent/WO2011049618A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
    • E03D9/03—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction ; Devices for agents in direct contact with flushing water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D2201/00—Details and methods of use for water closets and urinals not otherwise provided for
    • E03D2201/40—Devices for distribution of flush water inside the bowl

Definitions

  • This invention relates to an automatic and/or manual toilet bowl cleaning device where the inner surface of the toilet bowl can be cleaned around the entire circumference of the toilet bowl.
  • the device includes a spray bar that effectively delivers a cleaner around the circumference of a toilet bowl.
  • the spray bar may include nozzles to direct the flow of the cleaner.
  • Toilet bowls require care to prevent the buildup of unsightly deposits, to reduce odors, and to prevent bacteria growth.
  • toilet bowls have been cleaned, deodorized, and disinfected by manual scrubbing with a liquid or powdered cleaning and sanitizing agent. This task has required manual labor to keep the toilet bowl clean.
  • One type of dispenser comprises a solid block or solid particles of a cleansing and freshening substance that is suspended from the rim of a toilet bowl in a container that is placed in the path of the flushing water.
  • U.S. Patent No. 4,777,670 shows an example of this type of toilet bowl cleaning system.
  • a portion of the solid block is dissolved in the flush water with each flush, and the flush water having dissolved product is dispensed into the toilet bowl for cleaning the bowl.
  • WO 99/66140 all disclose cleansing and/or freshening devices capable of being suspended from the rim of a toilet bowl for introducing liquid active substances from a bottle into the flushing water with each flush.
  • the liquid active substances are delivered downward from a reservoir to a dispensing plate that is supported by a base that is suspended from the toilet bowl rim.
  • the device may be suspended from the toilet rim such that the flow of flush water from the toilet contacts the dispensing plate during a flush.
  • the flush water carries the liquid active substances that are on the dispensing plate into the toilet bowl to clean and/or freshen the toilet.
  • U.S. Patent No. 3,178,070 discloses an aerosol container mounted by a bracket on a toilet rim with a tube extending over the rim; and U.S. Patent Nos. 6,029,286 and 5,862,532 disclose dispensers for a toilet bowl including a pressurized reservoir of fluid, a conduit connected to the source of fluid, and a spray nozzle which is installed on the toilet rim. Accordingly, such devices are often referred to as "under the rim"-type devices.
  • One disadvantage with traditional toilet rim dispensing devices is that these devices may only apply the deodorizing and/or cleaning agent to one location in the toilet water or a limited area in the toilet water or on the inner surface of the toilet bowl. As a result, the cleaning of the inner surface of the toilet bowl may be limited to an area of the toilet bowl near the device.
  • the downstream end of a fluid supply conduit terminates in a nozzle capable of spraying the cleaning fluid outwardly onto the inner surface of the toilet bowl at locations below the toilet waterline, and/or locations at the toilet waterline, and/or locations above the toilet waterline, and/or locations under the toilet rim.
  • a mounting clip at a location near the rim of the toilet bowl may attach the nozzle to the toilet bowl.
  • the mounting clip can house a proximity or motion sensor that detects the presence of a person.
  • Manual delivery of the cleaning fluid from a fluid supply container to the fluid supply conduit may be achieved by pressing a manual activation button that is in electrical communication with a control circuit that turns on an electrically driven pump that delivers the cleaning fluid into the fluid supply conduit and into the spray nozzle.
  • Automatic delivery of the cleaning fluid from a fluid supply container to the fluid supply conduit can also be achieved pressing an activation button that is in electrical communication with a control circuit that controls on an electrically driven pump. Immediately after the user presses the activation button, fluid delivery occurs at selected time intervals (e.g. every eight hours).
  • the proximity sensor that is in electrical communication with the control circuit can stop initiation of a spray cycle if a person is near the toilet bowl.
  • the device may be activated while a consumer is using the toilet and/or the device may be activated in such a way that there is little to no opportunity for discharging composition onto the user.
  • the present invention is directed to a device for spraying an inner surface of a wall of an enclosure with a fluid
  • the device comprising: (1) a fluid spray bar having an interior space for receiving fluid from a source of the fluid and for spraying the inner surface of the wall of the enclosure; and (2) a plurality of spray nozzles through which the fluid can be sprayed, the spray nozzles being in fluid communication with the interior space of the spray bar, at least one of the spray nozzles having a nozzle body defining a fluid path in fluid communication with the interior space, the nozzle body extending away from an outer surface of the spray bar.
  • the present invention is directed to a device for spraying an inner surface of a wall enclosure with a fluid
  • the device comprising: (1) a fluid spray bar having an interior space for receiving fluid from a source of the fluid and for spraying the inner surface of the wall of the enclosure; a first spray nozzle through which the fluid can be sprayed, the first spray nozzle being in fluid communication with the interior space of the spray bar, arranged on the fluid spray bar and located between the source of the fluid and a first end of the spray bar, the first spray nozzle having a nozzle body defining a fluid path in connection with the interior space, the nozzle body of the first spray nozzle extending away from the outer surface of the spray bar wherein the first spray nozzle has a first spray hole having a first axis, the first spray hole being in fluid communication with the fluid path, wherein the first axis faces substantially away from the source of the fluid; and (2) a second spray nozzle through which fluid can be sprayed, the second spray nozzle being in fluid communication with the interior space
  • the present invention is directed to a device for spraying an inner surface of a wall enclosure with a fluid
  • the device comprising: (1 ) a fluid spray bar having an interior space for receiving fluid from a source of the fluid and for spraying the inner surface of the wall of the enclosure; and (2) a clip for attaching the spray bar to the enclosure, the clip including a hook and a base wherein the base includes an opening for receiving an inner rim segment of the hook.
  • Figure 1 is a perspective view of a toilet bowl cleaning device in accordance with an embodiment of the invention.
  • Figure 2 is a side elevation view of the clip of Figure 1 .
  • Figure 3 is a perspective view of a toilet bowl cleaning device in accordance with a first embodiment of the invention.
  • Figure 4 is a side elevation, fragmentary view taken along line 4-4 of
  • FIG. 1 showing a clip and spray bar assembly of the toilet bowl cleaning device of in accordance with the first embodiment of the invention.
  • Figure 5A is a top view of the toilet bowl cleaning device of Figure 3 and its associated spray pattern.
  • Figure 5B is a side view of the toilet bowl cleaning device of Figure 3 and its associated spray pattern.
  • Figure 6 is a top view of an exemplary toilet bowl cleaning device in accordance with an embodiment of the invention.
  • Figure 7A is a perspective, fragmentary view taken along line 7A-7A of Figure 6 showing a spray nozzle of the toilet bowl cleaning device in Figure 6 with the clip and the fluid conduit removed.
  • Figure 7B is a cross-sectional view taken along line 7B-7B.
  • Figure 8A is a top view of an exemplary toilet bowl cleaning device in accordance with an embodiment of the invention.
  • Figure 8B is a top view of an exemplary toilet bowl cleaning device in accordance with an embodiment of the invention.
  • Figure 9 is a top plan view showing the container holder of the toilet bowl cleaning device of Figure 1.
  • Figure 10 is an exploded perspective view of an example electrical pump suitable for use in the toilet bowl cleaning device of Figure 1.
  • Figure 11 is a functional flow diagram of the steps in an example operating method for the toilet bowl cleaning device of Figure 1
  • a cleaning device may be used to dispense cleaning fluid or some other cleaning composition into an enclosure and/or the inside surface(s) of an enclosure.
  • An enclosure may include a toilet bowl, shower stall, bathtub, and the like.
  • a toilet bowl cleaning and/or deodorizing device that delivers a chemical into the toilet bowl.
  • the term “chemical” or “chemistry” means one or more compounds and/or combination of ingredients.
  • Various cleaning and/or deodorizing chemicals are suitable for use with a toilet bowl cleaning device according to the invention.
  • the toilet bowl cleaning and/or deodorizing device includes appropriate chemistry and a dispensing system.
  • cleaning may also include sanitizing and/or disinfecting
  • the term “deodorizing” may also include freshening, odor absorbing, providing perfume and/or any function related to improving a user's olfactory experience.
  • a chemical, or other such cleansing composition may be provided onto the inner surface of the toilet bowl and/or directly into the toilet water to clean and/or freshen the toilet bowl.
  • the chemical will typically be a liquid (single or multiple chemistries).
  • the chemistry can also be a liquid (single or multiple chemistries) that is added to the water to act as a preventive, or to create an environment that will work to clean the toilet automatically.
  • the system includes several subsystems that may provide a suitable means for applying the appropriate chemistry to the inner surface of the toilet bowl to conduct the cleaning process.
  • the dispensing system may include, but not be limited to: (i) a chemistry storage container; (ii) a chemical propulsion system; (iii) a chemical delivery system; and (iv) a toilet interface. These subsystems work together to deliver the appropriate chemistry (using predetermined amounts) to deliver the desired consumer benefit.
  • the chemistry storage container may be used to hold and store the chemistry used to clean the toilet bowl.
  • Non-limiting examples include a standard plastic bottle, such as that found on a trigger sprayer.
  • the chemical propulsion system provides a method of providing the appropriate energy to the chemistry to move it through the delivery system so that it can move from the storage container to the appropriate area within the toilet bowl.
  • this subsystem include a pump or pumping mechanism to move a liquid such as a vein pump, bellows pump, impeller driven pump, piston pump, peristaltic pump or gear driven pump.
  • the chemical may be provided in a pressurized system wherein the drop in pressure between the chemistry storage container and the ambient surroundings provides an adequate gradient to effectively dispense the chemical composition.
  • the chemical delivery system provides a method of moving chemistry from its storage container to the appropriate area within the toilet bowl.
  • This delivery subsystem can include a hose and a sprayer (e.g., one or more spray bars).
  • the toilet interface provides a means and method of attachment to the toilet to keep the hose out of the way, keep it uncrimped, and secure the spray bar into place on the toilet rim or toilet lid.
  • the toilet bowl cleaning and/or deodorizing device includes a replaceable plastic transparent container filled with a toilet bowl cleaning solution (chemical composition) that uniquely locks into an inverted position in a container holder base dispensing unit.
  • the container holder base accepts a refill container with a unique lock and key and spill-proof closure.
  • the device detects when a container is inserted into the container holder base and available for safe dispensing.
  • a button release system secures the container through a locking tab that engages the container closure.
  • the base dispensing unit activates a pump, such as one similar to the one available in the Scrubbing Bubbles® Automatic shower Cleaner device, to automatically transfer fluid from the container through a conduit into a spray bar assembly approximately three times a day.
  • the spray bar assembly may be attached to the rim of the toilet bowl with the cleaning fluid dispenser spray bar inside the toilet bowl and below the inner rim.
  • a functional dispensing cycle results in a continuous coating of chemical from the plastic container onto the walls of the toilet bowl from the water line up to the bottom of the rim.
  • the invention provides a device for spraying an inner surface of a wall of an enclosure with a fluid.
  • the enclosure can be one of a tub, shower and/or toilet.
  • the device includes one or more fluid spray bars wherein each spray bar may include one or more spray nozzles, spray holes and/or nozzle bodies through which the fluid (e.g., chemical composition and/or cleaning composition) can be sprayed.
  • the spray bar has an interior space for receiving fluid from a source of the fluid and for spraying the inner surface of the wall of the enclosure.
  • the spray nozzles are in fluid communication with the interior space of the spray bar. At least one of the spray nozzles has a nozzle body defining a fluid path in fluid communication with the interior space, and the nozzle body extends away from an outer surface of the spray bar.
  • each of the spray nozzles has a nozzle body.
  • the nozzle bodies define a fluid path in fluid communication with the interior space, and each of the nozzle bodies extend away from an outer surface of the spray bar.
  • At least one spray nozzle has a first spray hole having a first axis and a second spray hole having a second axis.
  • the first and second spray holes are in fluid communication with the fluid path.
  • the first axis faces in a different direction than the second axis to provide a relatively wide coverage area for the spray.
  • At least one spray nozzle has a third spray hole having a third axis.
  • the third spray hole is in fluid communication with the fluid path, and the third axis is substantially opposite the direction of the first axis and the second axis to provide a relatively wide coverage area for the spray.
  • the first and second spray nozzles have nozzle bodies defining a fluid path in fluid communication with the interior space of the fluid spray bar.
  • the nozzle body of the first spray nozzle is arranged substantially on a first end of the fluid spray bar.
  • the first spray nozzle has a first spray hole with a first axis.
  • the nozzle body of the second nozzle is arranged substantially on a second end of the fluid spray bar.
  • the second spray nozzle has a second spray hole with a second axis.
  • the first and second axes face substantially opposite the fluid spray bar to provide a relatively wide coverage area for the spray.
  • At least one spray nozzle body extends laterally and upwardly away from the outer surface of the spray bar.
  • a pumping apparatus delivers fluid from the source of the fluid through a fluid conduit to the interior space of the fluid spray bar when the pumping apparatus is activated.
  • a controller is in electrical communication with the pumping apparatus.
  • the controller executes a stored program to activate the pumping apparatus at an end of a predetermined time interval stored in the controller.
  • the controller may also be in electrical communication with one or more sensor mechanisms wherein the sensor mechanisms may provide a means for detecting the presence (or lack thereof) of a user.
  • many automatic dispensing devices for bathroom-type enclosures such as WO
  • the spray bar is provided such that the spray device may further comprise spray nozzles (or some other means for discharge) wherein the chemical composition is provided to the inner surface of the enclosure in such a way that there is no contact with the user during discharge of the chemical composition.
  • the nozzle body of the first spray nozzle extends away from the outer surface of the spray bar.
  • the first spray nozzle has a first spray hole, wherein the first spray hole has a first axis.
  • the first spray hole is in fluid communication with the fluid path, and the first axis faces substantially away from the source of the fluid.
  • the second spray nozzle is in fluid communication with the interior space of the spray bar.
  • the second spray nozzle is arranged on the fluid spray bar and has a nozzle body defining a fluid path in fluid communication with the interior space.
  • the nozzle body of the second spray nozzle extends away from the outer surface of the spray bar.
  • the second spray nozzle has a second spray hole which has a second axis.
  • the second spray hole is in fluid communication with the fluid path, and the second axis faces in a different direction than the first axis.
  • the fluid is delivered to the fluid spray bar through a fluid conduit.
  • the fluid conduit is in fluid communication with the source of the fluid and the interior space of the spray bar.
  • the fluid conduit is located substantially next to the first end of the spray bar.
  • the pumping apparatus delivers fluid from the source of the fluid through the fluid conduit and to the fluid spray bar when the pumping apparatus is activated.
  • a controller is in electrical communication with the pumping apparatus.
  • the controller executes a stored program to activate the pumping apparatus at an end of a predetermined time interval stored in the controller.
  • the invention provides a device for spraying an inner surface of a wall enclosure with a fluid.
  • the enclosure can be one of a tub, shower, or toilet.
  • the device may include one or more fluid spray bars and a one or more clips for attaching the spray bars to the enclosure.
  • Each fluid spray bar may have an interior space for receiving fluid from a source of the fluid and for spraying the inner surface of the wall of the enclosure.
  • the clip includes a hook and a base.
  • the base may include an opening for receiving an inner rim segment of the hook.
  • the base is movable along the inner rim segment of the hook such that the distance between the base and the top of the hook is adjustable.
  • a tab extends away from the base. The tab engages an inner surface of the toilet when the clip is installed on the toilet.
  • a channel in the tab engages the spray bar.
  • the channel opens away from the base.
  • a pumping apparatus delivers fluid from the source of the fluid through a fluid conduit to the fluid spray bar when the pumping apparatus is activated.
  • a controller is in electrical communication with the pumping apparatus.
  • the controller executes a stored program to activate the pumping apparatus at the end of a predetermined time interval stored in the controller.
  • a nonlimiting example of a pump is that available for retail is the unit in the Scrubbing Bubbles® Automatic shower Cleaner.
  • composition may be provided during the dispensing from a device. Further, one of skill in the art will appreciate that the composition may have any density and/or viscosity and/or other physical properties which may be suitable for the intended purpose of the composition.
  • Extended-Bar Spray Device any amount of composition may be provided during the dispensing from a device. Further, one of skill in the art will appreciate that the composition may have any density and/or viscosity and/or other physical properties which may be suitable for the intended purpose of the composition.
  • Certain known automatic toilet bowl cleaning devices provide a constant stream or spray that is directed at the surface of an enclosure, such as a toilet, by using a rotating nozzle or other similar means to maximize the coverage to the surface of the toilet.
  • Other known automatic toilet bowl cleaning devices may provide a stream or spray that is directed towards the center of the toilet bowl in order to provide coverage throughout the center of the toilet bowl and to the opposite side of the toilet bowl from the spray origin. Such a device is described in WO 2009/027246.
  • Figures 1 and 2 provide a nonlimiting embodiment of a fluid spray bar assembly (indicated generally at 20) for spraying an inner surface of a toilet bowl 26 with a chemical.
  • the device such as a fluid spray bar assembly 20 includes a clip 10 for mounting a fluid spray bar assembly 20 to an enclosure, here a toilet bowl 12.
  • the clip 10 is secured to the rim 14 of the toilet bowl 12 by a hook 16.
  • a base 18 is supported by the hook 16.
  • the base includes a tab 50, which creates a channel 54 for engaging the fluid spray bar assembly 20.
  • a container 22 supplies fluid and/or some embodiment of a chemical composition and/or chemical cleanser 25 via a fluid conduit 24 to the fluid spray bar assembly 20 to be dispensed onto the inside surface 26 of the toilet bowl 12.
  • the fluid 25 can be supplied from the container 22 to the fluid spray bar assembly 20 by way of a pumping apparatus or by providing some sort of pressure to the container 22.
  • a pumping apparatus or by providing some sort of pressure to the container 22.
  • Such pressure source and/or controller to actuate a pumping apparatus may be housed in a container holder 23.
  • the pressure source, pumping apparatus, controller, and container holder 23 are described in further detail below.
  • the clip 0 comprises. a hook 16 for supporting the base 18 and attaching the clip 10 to the toilet bowl 12 has three main segments.
  • the three segments 28, 30, 32 may be integrally molded from plastic (e.g., polyethylene or polypropylene) and form a flexible hook 16.
  • the bowl segment 28 has a substantially rectangular cross section and a flared elastomeric gripping foot 34.
  • the bowl segment 28 extends substantially vertically upward and transitions into the top rim segment 30 at a flexible elbow 35 that allows the hook 16 to flex predominantly in the F-F direction to secure the clip 10 to toilet bowls of various shapes and sizes.
  • the top rim segment 30 has a substantially rectangular cross-section and extends horizontally across the rim 1 of the toilet bowl 12 where it transitions into the inner rim segment 32 at another flexible elbow 36, also allowing the hook 16 to flex.
  • the inner rim segment 32 extends vertically downward from the elbow 36 and is configured to engage and support the base 8.
  • the inner rim segment 32 of the hook 16 has a front face 38 and a rear face 40 joined by two short side faces 42.
  • a rib 44 protrudes from the rear face 40 of the inner rim segment 32 and extends the length thereof.
  • the rib 44 limits the angle of rotation of the base 18 with respect to the hook 16.
  • the rib of the example embodiment has a substantially rectangular cross-section, however, the rib 44 may have a curved cross-section, a square cross-section, comprise two spaced apart members, and the like. Additionally, the rib 44 need not extend the length of the inner rim segment 32 provided the rib 44 engages the base 18 throughout the desired adjustable range of the base.
  • the short side faces 42 have ratchet teeth 46 used in conjunction with the base 18 to restrain vertical movement of the base 18 along a vertical axis 48. Other restraints may be used, such as a friction fit between the hook 16 and base 18, or the like.
  • the base 18 has a tab 50 that extends rearward away from the base 18.
  • the tab 50 helps orientate the base 18 with respect to the rim 14 when the clip 10 is mounted to the toilet bowl 12, as discussed below.
  • the tab 50 may be one continuous member as shown in the example embodiment, or alternatively, the tab 53 may include a plurality of members extending from the base 18.
  • the base 18 is preferably molded from plastic (e.g., polyethylene or polypropylene).
  • the tab 50 includes a channel 54 for engaging the fluid spray bar 56. The channel 54 opens away from the base 18.
  • the base 18 includes an opening 64 for receiving the inner rim segment 32 of the hook 16.
  • the opening 64 includes a slit 66 for receiving the rib 44 having an entrance 68, an exit 70, and intermediate position 72 (which may or may not be equidistant from the entrance 68 and the exit 70).
  • the width of the slit 66 decreases from the entrance to the intermediate position 72 and increases from the intermediate position 72 to the exit.
  • the intermediate position 72 is approximately half way between the entrance 68 and the exit 70; however, the narrowest point need not be halfway between the entrance 68 and exit 70, but may occur anywhere between the extremes of the slit 66.
  • the maximum width of the slit 66 may vary depending on the desired degree of adjustment of the base 18 with respect to the hook 16. If greater rotational adjustment of the base 18 is desired, the maximum width of the slit 66 at the entrance 68 and exit 70 may be increased; alternatively, or in addition, the width of the rib 44 may be decreased. In another embodiment, a spring and/or elastic band and/or other resistance device, may be included in the rib to provide some sort of force to help the clip 10 maintain a strong fit to the toilet bowl 12 despite the adjustability of the clip 10.
  • the fluid spray assembly 20 includes a fluid spray bar 56 in fluid communication with a plurality of spray nozzles 62. In one
  • the fluid spray bar 56 is molded from a flexible plastic (e.g.
  • the fluid spray bar 56 has an interior space 57 (shown in Figure 7B) which defines a path that may provide fluid communication from the fluid conduit 24 to the rest of the fluid spray bar 58.
  • At least one spray nozzle 62 (shown in Figure 6) is in fluid communication with a nozzle body 58, which is preferably molded from an engineering plastic (e.g. polyacetal, acetal resin, polytrioxane, polyformaldehyde, and paraformaldehyde).
  • the nozzle body 58 defines a fluid path from the interior space 57 of the fluid spray bar 56.
  • the spray nozzle 62 may simply be a puncture, or other orifice, through which fluid and/or a cleaning composition 25 (Figure 1) may flow.
  • the fluid spray bar 56 is flexible so that it conforms to the shape of the toilet and is held securely in place by two clips 10.
  • the fluid spray bar 56 has five spray nozzles 62 evenly spaced along the fluid spray bar 56.
  • Each spray nozzle 62 has a nozzle body 58 attached to the outer surface of the fluid spray bar 56 over the spray nozzle 62, and the nozzle body 58 defines a fluid path from the interior space 57 of the fluid spray bar 56.
  • Each nozzle body has three spray holes 59 in fluid communication with the interior space 57 of the fluid spray bar 56 for dispensing chemical onto the inner surface 26 of the toilet bowl 12.
  • the spray holes 59 have a diameter of from about 0.4 mm to about 1.2 mm.
  • the spray holes 59 have a diameter of from about 0.5 mm to about 1.0 mm.
  • the spray holes have a diameter of from about 0.6 mm to about 0.8 mm. It is thought that by providing a smaller spray hole size, smaller particles are released. Because small particles have less mass than large particles, such particles are more likely to drift from their intended path, thus running the risk of unwanted contact with the user and/or not reaching the intended surface for coverage. Such small particles, or mist, may be suitable for fragrancing applications, but inventors observe such surprising results to provide optimal coverage for cleansers or cleansing applications.
  • spray particle size increases as spray pressure decreases.
  • the spray pressure may be selected to provide a spray that provides adequate coverage within the intended enclosure. In other words, that is, adequate pressure must be provided to avoid misting the chemical composition, but at the same time able to provide coverage to the surface.
  • the spray nozzle 62 may remove the need for any sort of moving spray delivery system.
  • spray can be provided in a plurality of directions substantially parallel to the X-Y plane, but which will reach a relatively high percentage of the inner surface 26 of the toilet bowl 12 is provided with cleaning composition 25.
  • spray that is directed away from, and/or relatively tangential to, the nearest point on the circumference of the inner portion of the toilet bowl.
  • a first spray hole 59a is directed to provide a first spray Si that may be substantially normal to a line tangent to the spray bar 56 at the spray hole 59 and/or nozzle 62.
  • a second spray hole 59b may provide a second spray S 2 that is aimed in a direction that is different from the first spray Si and at such an angle a 2 that the first spray and second spray S 2 do not cross.
  • a third spray hole 59c may provide a third spray S 3 that is aimed in a direction and at an angle a 3 such that the first spray Si and the second spray S 2 do not cross the third spray S 3 .
  • the spray holes 59a, 59b, 59c do not necessarily have to be located on a single nozzle 62, but may simply be adjacent orifices in the fluid spray bar 56 or located on adjacent nozzles 62.
  • the number and size of the spray nozzles 62 and nozzle bodies 58 may be varied in order to adjust the level of coverage of the chemical. Additionally, it is understood that the number and direction of the spray holes 59 may also be modified.
  • the nozzle bodies 58 at the end of the fluid spray bar 56 may provide a fourth spray S 4 that is directed away from the fluid spray bar 56 in order to provide a relatively high level of coverage
  • a 2 and/or a 3 is from about 0° to about 80°. In another embodiment, a 2 and/or a 3 is from about 10° to about 50°. In still another embodiment, a 2 and/or ct 3 is from about 15° to about 30°.
  • each spray hole 59, spray nozzle 62 and/or nozzle body 58 may provide spray in the same direction. In one embodiment, the direction may be one that is substantially normal to a line which may be tangent to the spray bar 56 at the spray hole 59, spray nozzle 62 and/or nozzle body 58.
  • FIG. 5B shows an embodiment of the sprayer 20 of Figure 5A in the X-Y plane.
  • the sprays (Si , S 2 , S 3 ) may be directed upward relative to the X-Y plane, at an angle ⁇ , to contact the rim 14 of the toilet bowl 12.
  • the sprays (S S 2 , S 3 ) may be directed in a direction substantially co-planar with the spray holes and/or nozzle 62.
  • the sprays (S ⁇ , S 2 , S 3 ) may be directed downward relative to the X-Y plane, at an angle ⁇ 2 , to contact the rim 14 of the toilet bowl 12.
  • the spray holes 59 in a particular spray nozzle 62 need not be directed in the same direction with respect to the X-Y plane, but may be directed in any way that will provide the user with the user's desired final result.
  • the shape and/or size of the nozzle bodies 58 and/or spray nozzles 62 and/or spray holes 59 may be any size that suits the user's intended function.
  • the nozzle bodies 58 are all oriented to intersect the inner surface 26 of the toilet bowl 12 in such a way as to prevent the fluid spray bar 56 from blocking the flushing jets of the toilet.
  • ⁇ and/or ⁇ 2 is from about 0° to about 80°.
  • fa and/or ⁇ 2 is from about 10° to about 60°.
  • ⁇ and/or ⁇ 2 is from about 20° to about 45°.
  • each spray nozzle 62 (or in an alternative embodiment, the diameter of each spray hole 59) is from about 0.4 mm to about 1.2 mm. In another embodiment, the diameter of each spray nozzle is from about 0.5 mm to about 1.0 mm. In another embodiment, the diameter of each spray nozzle is from about 0.6 mm to about 0.8 mm.
  • the spray holes 59 are configured to produce a conical spray having a cone angle of from about 30° to about 150°. In another embodiment, the spray holes 59 are configured to produce a conical spray having a cone angle of from about 45° to about 135°. In another embodiment still, the spray holes 59 are configured to produce a conical spray having a cone angle of from about 75° to about 105°.
  • an exemplary clip 10 may be mounted follows: The clip 10 is secured to the rim 14 of the toilet bowl 12 by urging the hook 16 in the F-F direction away from the base 18 and placing the clip 10 over the rim 14. Once the hook 16 is secured, the base 18 is slid along the vertical axis 48 up the hook 16 and ratchet teeth 46 until the tab 50 engages the underside of the rim 14.
  • a spring, elastic band, or other resistance means may be provided to allow for a relatively tightly secured fit between the clip 10 and the rim 14.
  • the clip 10 may be provided such that the weight of the clip is approximately equal at opposite sides to provide a counterbalance.
  • the fluid spray bar 56 slides into the channel 54 on the base 18 of the clip 10.
  • the fluid spray bar 56 is held securely in position by the channel 54.
  • the fluid spray bar 56 may also be snap-fit to the channel 54 or may be wedged into the channel 54.
  • the fluid spray assembly 20 includes a fluid spray bar 56 in fluid communication with a plurality of spray nozzles 62.
  • the fluid spray assembly 20 includes a fluid spray bar 56 in fluid communication with a plurality of spray holes 59 (not shown).
  • the fluid spray bar 56 may be molded from a flexible plastic (e.g. polyethylene and polypropylene).
  • the fluid spray bar 56 has an interior space 57 that defines a fluid path from the fluid conduit 24.
  • a plurality of spray nozzles 62 are in fluid communication with nozzle bodies 58, which may be molded from an engineering plastic (e.g.
  • the nozzle bodies 58 define a fluid path from the interior space 57 of the fluid spray bar 56.
  • the fluid spray bar 56 is flexible so that it conforms to the shape of the toilet and is held securely in place by two clips 10.
  • the fluid spray bar 56 has sixteen spray nozzles 62 evenly spaced along the fluid spray bar 56 which define a fluid path from the interior space 57 of the fluid spray bar 56.
  • the diameter of each spray nozzle 62 (or in an alternative embodiment, the diameter of each spray hole 59) is from about 0.4 mm to about 1.2 mm. In another embodiment, the diameter of each spray nozzle is from about 0.5 mm to about 1.0 mm. In another
  • the diameter of each spray nozzle is from about 0.6 mm to about 0.8 mm.
  • the spray nozzles 62 may be provided at angles and directions as described for the embodiment above.
  • One spray nozzle 62 at each end of the fluid spray bar 56 has a nozzle body 58 attached to the outer surface of the fluid spray bar 56 over the spray nozzle 62.
  • Each nozzle body 58 defines a fluid path from the interior space 57 of the fluid spray bar 56 and has one spray hole 59 for dispensing chemical from the interior space 57 of the fluid spray bar 56 onto the inner surface 26 of the toilet bowl 12.
  • the spray holes 59 on both nozzle bodies 58 are provided in a direction substantially opposite the fluid spray bar 56.
  • the nozzle bodies 58 have a spray S 4 in a direction that is substantially opposite the fluid spray bar 56.
  • Figure 8A illustrates the orientation of the spray nozzles 62 and the spray holes 59 in the nozzle bodies 58 of the example embodiment.
  • the spray nozzles 62 are directed substantially normal to lines tangent to the spray nozzles 62 at each spray nozzle.
  • Figure 8B illustrates the orientation of adjacent spray nozzles, but wherein the adjacent spray nozzles are directed in different angles.
  • Figure 9 shows an exemplary means for moving fluid 25 (Figure 1 ) from the container 22 (Figure 1) through the conduit 24 ( Figure 1) and to the spray nozzles 62 ( Figure 1) and spray holes 59 (Figure 1) on the fluid spray bar 56 ( Figure 1) to be dispensed onto the inside surface 26 ( Figure 1) of the toilet bowl 12 ( Figure 1) can now be described.
  • the container holder 23 includes an exterior wall 103 having a rear mounting bracket 105 for supporting a hanger (not shown) that can be used to hang the container holder 23 and container 22 on the toilet tank.
  • the container holder has a well 07 that supports the container 22 in an inverted position as shown in Figure 1.
  • the bottom wall 109 of the well 107 has an upwardly extending piercing post 111 that pierces a frangible seal on the container 22 and then enters a mouth of the container 22 when the container 22 is placed in the well 107 of the container holder 23.
  • the piercing post 111 has a central piercing edge 113, an air vent inlet 1 15, and a fluid outlet 117.
  • the air vent inlet 115 is in fluid communication with a check valve (not shown).
  • the check valve is normally closed so that fluid 25 does not leak out via the air vent inlet 115.
  • the check valve opens by negative pressure that develops as fluid 25 is withdrawn from the container 22.
  • the opened check valve aspirates air to the container 22 in a consistent manner, without introducing air in a manner that would cause foaming or gurgling.
  • the check valve remains open until the pressure in the container 22 has equalized sufficiently to alleviate the negative pressure and then it closes.
  • the fluid outlet 1 17 provides a fluid path from the container 22 to a conduit and then to a pump inlet port 248 as described below.
  • a valve 119 controls release of fluid 25 from the fluid outlet 117.
  • the weight of the container 22 opens the valve 119 when the container is installed in the container holder 23.
  • a power switch 121 in the bottom wall 109 of the well 107 moves downward when the weight of the container 22 is applied to the power switch 121 when the container 22 is installed in the container holder 23.
  • the power switch 121 supplies power from batteries (not shown) to a controller and pumping apparatus as described below.
  • the front vertical surface of the container holder 23 also includes a manual actuator button 123 and a light emitting diode (LED) 125 which are in electrical communication with the controller.
  • the container holder 23 also includes a push button 127 that moves a locking tab 129 that engages the container closure to lock the container 22 in the container holder 23.
  • the pump 200 may be secured inside the container holder 23.
  • the pump 200 includes an electric DC motor 202 that is in electrical communication with batteries (not shown) and the controller.
  • the motor 202 includes a drive shaft 204.
  • the motor 202 is housed in a top pump housing 206 in the top annular wall 208 of the top pump housing 206.
  • the pump 200 includes a drive gear 210 that is connected at the lower end of the drive shaft 204.
  • the drive gear 210 meshes with a second gear 212 in the pump drive train.
  • the gear 212 has an eccentric circular disk 213 on its upper surface.
  • the gears 210, 212 are housed in a bottom pump housing 214.
  • the pump 200 includes a piston crank 215 having a collar 216 at one end.
  • the collar 216 receives the circular disk 213 of the gear 212 when the pump 200 is assembled.
  • the pump 200 also includes a piston 217 having a connector 218 that is assembled with a connecting pin 220 to a yoke 222 at the forward end of the piston crank 215.
  • An O-ring seal 224 is arranged in an outer groove 226 on a forward section of the piston 217.
  • the piston 217 reciprocates in a cylindrical pump chamber 228 with the O-ring seal 224 engaging an inner surface of the pump chamber 228 to prevent fluid leakage.
  • the pump chamber 228 includes a pair of O-ring valve seals 232 and valve holders 234, 236 that engage umbrella check valves 238, 242.
  • a pump connector 244 closes a forward end 245 of the pump chamber 228.
  • the pump connector 244 includes a pump outlet port 246 and a pump inlet port 248.
  • the controller supplies electrical current from the batteries to the motor 202 under certain conditions described below.
  • the drive shaft 204 rotates the drive gear 210 which in turn rotates the second gear 212.
  • the circular disk 213 of the gear 212 moves the piston crank 215 forward and rearward by way of the engagement of the eccentric disk 213 and the collar 216.
  • the pump inlet port 248 which is in fluid communication by way of a conduit (not shown) with the fluid outlet 117 of the piercing post 11 1.
  • a functional flow diagram of a software program routine for operating the device 8 can be explained with reference to Figure 11.
  • the functional flow diagram is used to generate a software program used to control the device 8.
  • the controller of the device 8 includes a microprocessor under the control of the software program which is stored on memory of the controller.
  • the software program can be stored in the controller memory using conventional techniques.
  • the controller may be secured inside the container holder 23.
  • the controller is in electrical
  • Suitable controllers are microcontrollers available from Elan Microelectronics Corp., Hsinchu City, Taiwan.
  • a user inserts batteries into a battery compartment in the container holder 23.
  • Battery compartments and their wiring to a controller are known in the art and therefore will not be explained further.
  • the container 22 (which may be a liquid refill) is installed in the container holder 23 causing the power switch 121 in the bottom wall 109 of the well 107 of the container holder 23 to move downward thereby completing a circuit to supply electrical power from batteries to the controller.
  • the LED 125 then remains on.
  • the timer may be started on an automatic discharge that will take place eight hours from the reset of all controller system counters and fault conditions.
  • the software routine then advances to step 406.
  • the device 8 should function until the average battery voltage reaches a lower threshold voltage when the pump 200 is not running.
  • the controller checks the available battery voltage. If the battery voltage is below a predetermined value, a low voltage shutdown occurs at step 408 prior to controller microprocessor loss.
  • the LED 125 is turned off and a power down sequence occurs. If the battery voltage is at or above a predetermined value, the routine proceeds to step 410.
  • step 410 the controller responds to any manual cycle request from the pressing of the manual actuator button 123. If the manual actuator button 123 has been pressed, the routine advances to step 412. The manual cycle will dispense cleaning solution five seconds after the depression and release of the manual actuator button 123. At step 4 2, the LED 25 will flash after the manual actuator button 123 has been pressed.
  • step 416 the controller provides electrical current to the motor 202 of the pump 200 to deliver fluid to the fluid spray bar 56 to be dispensed onto the inside surface 26 of the toilet bowl 12 as described above.
  • the controller can provide electrical current to the motor 202 of the pump 200 for any selected time period depending on the amount of fluid that is desired to be dispensed onto the inside surface 26 of the toilet bowl 12.
  • a pumping time period is one second after which the routine moves to step 418. After step 418, the routine proceeds back to step 406.
  • step 406 indicates that the battery voltage is not low and step 410 indicates that a manual cycle request has not been initiated by pressing the manual actuator button 123
  • the routine proceeds to step 426.
  • the controller checks the time count of the automatic discharge timer that was started on the reset of all controller system counters and fault conditions. If the time count of the automatic discharge timer indicates that an automatic dispensing is not set to occur, the routine proceeds back to step 406. If the time count of the automatic discharge timer indicates that an automatic dispensing is to occur (e.g., the eight hour dispensing interval has been reached), the routine proceeds to step 428.
  • the controller first provides electrical current to the motor 202 of the pump 200 to deliver fluid to the nozzle 20 to be dispensed onto the inside surface 26 of the toilet bowl 12 as described above. After a predetermined time period, the controller measures the voltage drop from the batteries. If the voltage drop is less than or equal to a predetermined value, the controller provides electrical current to the motor 202 of the pump 200 for a predetermined pumping time period (in some embodiments, about 1.3 seconds, in another embodiment from about 1 to about 5 seconds, in a different embodiment from about 1 to about 3 seconds).
  • a predetermined pumping time period in some embodiments, about 1.3 seconds, in another embodiment from about 1 to about 5 seconds, in a different embodiment from about 1 to about 3 seconds.
  • the controller provides electrical current to the motor 202 of the pump 200 for a pumping time period (e.g., 1.7 seconds) greater than the predetermined pumping time period (e.g., 1.3 seconds).
  • a pumping time period e.g., 1.7 seconds
  • the predetermined pumping time period e.g., 1.3 seconds.
  • the magnitude of the measured voltage drop can be used to select the length of the extended pumping time. For example, greater voltage drops may lead to 1.4 or 1.6 seconds of pumping time.
  • Suitable software subroutines can be used to select the extended pumping time.
  • the extended pumping time at lower voltages is beneficial in that lower voltages result in lower pump motor speeds which reduce the fluid dispensed to the toilet bowl 12. By extending the pumping time at lower pump speeds, a consistent amount of fluid can be dispensed (e.g., 5 milliliters) even though the pump speed has decreased in relation to the pump speed at higher voltages.
  • step 432 the timer may be restarted on a second automatic discharge that will take place 8 hours from the end of the pumping time period.
  • the routine then proceeds back to step 406. Because the routine is looping, when step 432 is next reached in the routine, the timer will be restarted on a third automatic discharge that will take place 8 hours from the end of the second pumping time period. This process will repeat itself such that automatic dispensings will continue at these 8 hour intervals until the battery voltage becomes too low (see steps 406 & 408) or the fluid is depleted.
  • the automatic dispensing intervals could be, without limitation, four hours, six hours, or ten hours.
  • Software programming techniques can be used to readily adjust these and other variables.
  • the present invention provides a toilet bowl cleaning and/or deodorizing device that delivers a chemical into the toilet bowl.
  • the device provides consumers with an automatic, unattended dispensing of the toilet bowl cleaning fluid.
  • the device can keep the toilet bowl clean for up to thirty days without scrubbing, and gets a dirty toilet bowl cleaner in days.
  • the device provides overall bowl cleanliness by enhanced shine, removal of hard water lines and retardation of biofilm, mold and mildew growth.
  • the device has quiet, unattended operation, and manual dispensing is available in addition to automatic cycles.
  • the present invention provides an automatic and/or manual toilet bowl cleaning device where the inner surface of the toilet bowl can be cleaned around the entire circumference of the toilet bowl by application of a cleaning fluid without contacting the user while the user is using the toilet bowl.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)

Abstract

La présente invention a trait à un dispositif permettant de pulvériser une surface intérieure d'une cuvette de toilettes au moyen d'un fluide de nettoyage. Le dispositif inclut un réservoir destiné au fluide, une barre de pulvérisation de fluide au moyen de laquelle le fluide peut être pulvérisé sur la paroi de l'enceinte, un appareil de pompage permettant de fournir le fluide à partir du réservoir jusqu'à la barre de pulvérisation de fluide, et un organe de commande. La barre de pulvérisation de fluide inclut des buses de pulvérisation dotées de différentes configurations et des corps de buse permettant de pulvériser efficacement la surface intérieure de l'enceinte.
PCT/US2010/002788 2009-10-19 2010-10-19 Dispositif de nettoyage de cuvette de toilettes par pulvérisation sans contact WO2011049618A1 (fr)

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US12/581,663 US20110088153A1 (en) 2009-10-19 2009-10-19 Non-contact spray toilet bowl cleaning device
US12/581,663 2009-10-19

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WO2011049618A1 true WO2011049618A1 (fr) 2011-04-28

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USD1008036S1 (en) 2021-08-05 2023-12-19 Homemation, Inc. Fragrance container
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DE202012002839U1 (de) * 2012-03-21 2013-06-25 Viega Gmbh & Co. Kg Vorrichtung zur Reinigung eines WC-Beckens

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