Most sinks have an overflow vent to catch rising water and divert it to the drain before the sink overflows. Unfortunately, water that gets into the overflow vent may not fully drain, allowing bacteria to grow in the overflow vent. When water passes through the drain during normal use, air may be forced through the overflow vent past this bacteria and out into the air around the sink. This can become a health risk, particularly in public-use sinks such as public restrooms, hospitals, and other sinks that may harbor harmful bacteria.
An overflow vent irrigation device is disclosed. In an example, the device includes a faucet snap fitting or other connection to connect to a faucet manifold, and is designed to inject a cleaning fluid into the overflow vent of residential and commercial basin (e.g., sink, tub, etc.) to clean and disinfect the overflow-to-drain journal. In an example, the device takes advantage of water pressure generated by the device to dissolve a cleaning tablet, mix the cleaner with water, and deliver the mixture to the overflow vent of the basin.
In an example, the device includes a reservoir (e.g., constructed of molded plastic, cast or machined metal). The reservoir may have a tablet chamber, an internal manifold designed to increase water velocity, and a hose connection. The example device may also include a flexible hose, second hose connection, splash guard, and injection nozzle. The example overflow vent irrigation device provides a turbulence dam within the reservoir body.
During use, the input port is connected to a faucet of a basin such as a sink, and the exit port is connected via a hose to an overflow port of the overflow-to-drain journal of the sink. In an example, the device can be implemented to clean and disinfect the overflow-to-drain journals, with a pressurized cleaning fluid. The device may be readily manufacturable at low cost, and may be easily portable from one sink or fixture to another, and from one location to another.
Before continuing, it is noted that as used herein, the terms “includes” and “including” mean, but is not limited to, “includes” or “including” and “includes at least” or “including at least.” The term “based on” means “based on” and “based at least in part on.” In addition, the term “sink” is used herein generally to refer to any basin having an overflow-to-drain journal.
It is also noted that the examples described herein are provided for purposes of illustration, and are not intended to be limiting. Other devices and/or device configurations may be utilized to carry out the operations described herein. Although components are shown with particular shapes, dimensions, and orientations, it should be understood that a wide variety of different shapes, dimensions, and orientations may be employed to achieve the desired effect, and that components may be arranged in different orders or configurations such that operations of the overflow vent irrigation device occur in different order to achieve the desired effect. Some components may be deleted or replaced with analogous components while still allowing the device to achieve the desired effect, and a variety of additional components may be added that do not interfere with the desired operation or operations of the device. Still other examples are also contemplated.
In an example, the device 1 includes a reservoir 2 with a tablet chamber 9. A quick connect retaining clip 3 is provided to attach a faucet manifold 5 to a faucet or faucet connector. Other connectors are also contemplated, including but not limited to clips, keepers, slide-locks, and screw-on attachments. During operation, water may flow through an internal manifold 4 within the reservoir 2, and exit through a hose connector 10. A tablet may be enclosed in the tablet chamber 9 such that the tablet dissolves into the flow through the reservoir's internal manifold 4, affecting the composition of the water exiting through the hose connector 10.
The quick connect retaining clip 3 can be seen adjacent to the faucet manifold 5 (through which water enters the reservoir 2). The quick connect clip 3, the tablet chamber cap 8, and the hose connect 10 are shown.
Water flow from the faucet of the basin (e.g., a sink) enters the reservoir 2 and exits the reservoir through the hose connect 10. In an example, the water flow may dissolve and/or retrain some or all of a cleaning material from a tablet in the tablet chamber 9. The water flow with cleaning material exits the reservoir 2 (e.g., carrying the dissolved or suspended material) through the hose connect 10. Operation can be better understood with reference to
In an example, a reservoir body 2 is connected to a faucet manifold 5 (e.g., having a NEOPERL brand replacement aerator part #591194). The faucet manifold 5 may be attached to the faucet of the sink by a snap fitting (e.g., quick connect retaining clip 3) on the faucet manifold 5.
The reservoir 2 is shown as it may be connected via a flexible hose 11 to an injection nozzle 13. A splash shield 14 is also shown holding the injection nozzle 13 into overflow port 15 of the fixture. The overflow port 15 is shown leading to an overflow-to-drain journal 16 of the fixture.
In this configuration, water from the sink faucet passes through the faucet manifold 5 and into the reservoir 2, where it may come in contact with a cleaning tablet in the tablet chamber 9. The water flow then exits the reservoir 2 via host connect 10 into the hose 11, passes through the injection nozzle 13 and into the overflow port 15 of the overflow-to-drain journal of the sink. The water flow thus may pass through the overflow-to-drain journal 16 and dislodge or dissolve foreign material and carry it into the drain of the sink. The cleaning agent may also kill or dislodge organisms resident in the overflow-to-drain journal 16, thus cleaning and disinfecting the overflow-to-drain journal 16.
The operations shown and described herein with reference to
In an example, the water may flow through a turbulence dam 7 within the reservoir body 2, where the amount of turbulence is adjusted using fluid management techniques. In an example, turbulence dam 7 causes turbulence of the water flow. The shape of the reservoir 2 and/or the turbulence dam 7 may cause a venturi effect, thus speeding the flow of water through the device 1 and as the water flow exits the device 1 through the hose 11 and as the water flow is discharged into the overflow port 15 of the overflow-to-drain journal of the sink. This turbulence may also result in gradual erosion of a cleaning tablet in the tablet chamber 9.
It is noted that erosion may also occur through oxidation or other chemical reactions (e.g., based on the pH value of the water and on chemicals and impurities dissolved within it). Tablet erosion may also occur due to the mechanical scrubbing action of particulate matter suspended in the water, e.g., as it flows through the device.
Other configurations are also possible. For example, the hollow reservoir bore or internal manifold 4 may include a different arrangement, wherein the water passing through the faucet manifold or intake manifold 5 may flow into an erosion manifold or anti-erosion manifold 6 in the reservoir body 2. Using any combination of surfaces, materials, material thicknesses, coatings, or textures (e.g., ridges, grooves, dimples, or bumps), the erosion manifold 6 may reduce erosion of the overflow vent irrigation device from the water passing through it. This change in surface structure may reduce and/or increase friction (drag) with respect to flowing water.
The water exiting the faucet connection 10 may also be turbulent, or may become turbulent within the reservoir body 2, which may increase drag and decrease overall flow rate through the device, whereas a laminar flow may be desirable for its increased flow rate. Alternatively, the water flow through the device may be laminar, whereas a turbulent flow may be desired to increase cleaning action within the overflow-to-drain journal 16 due to increased random motion of the fluid and any materials dissolved or suspended within it.
Although the figure depicts the faucet and overflow port of the overflow-to-drain journal of the sink as belonging to the same fixture, it should be understood that the water supply may come from one sink or fixture while cleaning the overflow-to-drain journal of a different sink or fixture.
The example overflow vent irrigation device 21 is shown without the tablet chamber cap in
It is noted that the examples shown and described are provided for purposes of illustration and are not intended to be limiting. Still other examples are also contemplated.
This application claims the priority benefit of U.S. Provisional Patent Application No. 62/487,841 filed Apr. 20, 2017 for “Overflow Vent Irrigation Device,” hereby incorporated by reference in its entirety as though fully set forth herein.
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