The field of the present disclosure relates generally to improved sanitation systems, and in particular, to a portable washbasin system designed for providing clean water for washing hands and maintaining appropriate hygiene in areas where running water is not readily available.
Many homes, especially those in developed nations, include at least one bathroom with a toilet for receiving and handling human waste and a sink with clean water for washing hands and maintaining appropriate hygiene as needed. Such bathrooms typically operate in connection with plumbing and sewage systems that provide running water to facilitate flushing and removal of the human waste and to allow users to wash their hands with clean water. While plumbing systems are widely employed in many homes, such plumbing systems may not be available in all homes for various reasons. For example, in extremely cold climates, plumbing and sewage systems may be difficult to install and use because of constant freezing issues. Further, in coastal regions, land erosion may impact such systems and require more portable solutions to accommodate people periodically moving further inland due to a continuously eroding coastline. In impoverished regions, homes may not be permanent structures and water may be scarce, thereby making it impractical to install such complex plumbing systems.
Portable lavatory systems are generally known and used in many different settings in modern society. For example, such systems are commonly used during outdoor social events, such as, sporting events and concerts, or during construction projects for the convenience of the construction workers. These portable lavatories are typically self-contained systems in a singular stall or structure with a holding tank located under the toilet or urinal for receiving and storing the waste. Typically, such systems do not have any flushing water and lack proper venting to handle odor from the waste that accumulates in the holding tank. In addition, such portable systems typically lack sinks or provide running water to accommodate handwashing. While such systems may be useful for temporary outdoor events, they are generally unsanitary and not suitable for integrating into a home environment.
Accordingly, the present inventors have determined that it would be desirable to develop a portable washbasin system with improved features for providing clean water to support handwashing and other hygienic activities. The present inventors have also determined a need for such a portable system designed to collect the wastewater from the sink for subsequent disposal to accommodate use in regions with no plumbing systems or seepage pits. In addition, the present inventors have recognized a need for such an improved system specifically designed for in-home use and expedient deployment. Additional aspects and advantages will be apparent from the following detailed description of example embodiments, which proceeds with reference to the accompanying drawings. It should be understood that the drawings depict only certain example embodiments and are not to be considered as limiting in nature.
With reference to the drawings, this section describes particular embodiments of a sanitation system and a washbasin system and their detailed construction and operation. The embodiments described herein are set forth by way of illustration only and not limitation. Throughout the specification, reference to “one embodiment,” “an embodiment,” or “some embodiments” means that a particular described feature, structure, or characteristic may be included in at least one embodiment of the system or of the components being discussed. Thus, appearances of the phrases “in one embodiment,” “in an embodiment,” or “in some embodiments” in various places throughout this specification are not necessarily all referring to the same embodiment. Further, the described features, structures, characteristics, and methods of operation may be combined in any suitable manner in one or more embodiments. In view of the disclosure herein, those skilled in the art will recognize that the various embodiments can be practiced without one or more of the specific details or with other methods, components, materials, or the like. In other instances, well-known structures, materials, or methods of operation are not shown or not described in detail to avoid obscuring more pertinent aspects of the embodiments.
With general reference to the figures, the following disclosure relates generally to an improved system and method for providing basic sanitation needs (e.g., handwashing, clean water, human waste disposal, etc.) to homes and other structures where piped water systems are nonexistent or impractical, such as in impoverished regions or lands that may be vulnerable to flooding and erosion. In some communities, problems with land erosion are so severe that homeowners and agencies are reluctant to invest in piping and sewage infrastructure due to the short useful shelf-life of such systems under these conditions, thereby creating health risks and problems that could be remedied or avoided altogether with the disclosed sanitation system further described below.
As illustrated in
In some embodiments, various components of the sanitation system 100 may be incorporated into a portable washbasin system 400 (see
The system 100 further includes a water treatment system 120 that may be in communication with the storage tank 110 (or connected to a separate water tank) to provide filtration that complies with federal and state drinking water requirements, thereby providing potable water that is safe for human consumption. The water treatment system 120 may include any of various suitable filtration devices operable to filter water, such as efficient cartridge filters and other similar devices. Preferably, the water treatment system 120 is designed such that it is easily movable so that it can be transported outdoors to provide filtered drinking water as needed. The water treatment system 120 may include a hand pump (not shown) that can be activated and used to allow the system to treat water without requiring electrical power. In other embodiments, the water treatment system 120 may instead include an electrical pump.
Water to the storage tank 110 (and/or to the tank with drinking water) may be provided in whole or in part by an exterior water catchment system 130. Generally speaking, water catchment is the process of collecting and storing rainwater, where the water may be reused for domestic tasks, or with sufficient filtration, may be reused as drinking water. With reference to
The system 100 includes a sink 140 connected to the water storage tank 110, the sink 140 being operable to dispense water from the storage tank 110 to provide clean, running water for handwashing, brushing teeth, and other sanitary or hygienic needs. Preferably, the sink 140 is a low-flow fixture that dispenses water more efficiently as compared to a traditional sink. For example, in some embodiments, the sink 140 may discharge water at a rate of 0.25 gallons per minute, or at a rate of up to 0.5 gallons per minute. A traditional sink typically operates with a flow rate between 1.5 to 2.5 gallons per minute. Preferably, the flow rate is optimized to conserve water while still providing a sufficient flow rate for desired use in the facility. In some embodiments, the sink 140 may further include a sink trap 150 located underneath the sink 140 to trap solids that may damage the seepage pit system 300 (see
To handle and dispose of waste, the system 100 includes a standalone urinal 170 for handling liquid waste, and also a toilet 180 for handling liquid and solid waste. Preferably, the urinal 170 is a waterless urinal designed to avoid the need to use water in handling liquid waste. In other embodiments, it can be a water-dependent urinal that preferably requires small amounts of water to function. In other embodiments, such as where space may be at a premium, the system 100 may eliminate the urinal 170 and include only the toilet 180 for handling all waste. In some embodiments, the urinal 170 may be piped or otherwise routed to an outdoor infiltration system or seepage pit 300 (see
The toilet 180 is preferably designed to separate solid waste and liquid waste for subsequent disposal. To handle odors generated by the solid waste, the system 100 may include a ventilation system 190 that incorporates an energy efficient fan for constantly ventilating the toilet 180 to dry the solid waste and minimize odors within the home. In some embodiments, the ventilation system 190 may include an adjustable damper to allow ventilation of the house or structure to improve indoor air quality while minimizing energy loss. The liquid waste may be piped or otherwise routed to an outdoor infiltration system or seepage pit 300 (see
As illustrated in
At the rear portion of the intake system 206, and behind the separating wall 208, is an opening or channel 218 positioned and designed to accept solid waste. The solid waste is collected in a container 220 positioned underneath the intake system 206. The container 220 is in communication with the ventilation system 190 (see
As noted previously, liquid waste from the separating toilets 180, 280 may be disposed of into a seepage pit 300 (if not otherwise disposed of manually). With particular reference to
As winter continues, the seasonal frost layer 306 continues freezing the soil until the seasonal frost layer 306 reaches the permafrost layer 302. At this point, the soil 304 is fully frozen and drainage via the seepage pit 300 is no longer viable. During the winter therefore, the sanitation system 100 may be switched to a containerized operation, where water from the sink 140 and liquid waste from the urinal 170 and toilet 180 are diverted into one or more containers (not shown) and disposed of manually at a suitable location. In some embodiments, the one or more containers may include a valve or other flow restriction device that allows for the water to be easily diverted into the containers when the seepage pit 300 is not viable for the season. As the season transitions to spring, the seasonal frost layer 306 begins thawing from the surface level down toward the permafrost layer 302. As the soil thaws, wastewater can again move laterally through the seepage pit 300 into the surrounding soil. At that point, the valve or restriction device may be reset to allow water from the sink 140, urinal 170, and toilet 180 to resume flow into the seepage pit 300. Accordingly, the sanitation system 100 can begin to dispose of wastewater through the seepage pit again.
As described, the sanitation system 100 is designed to provide an improved system with most of the functionality of a conventional bathroom with plumbing, while also being designed in a modular configuration with components that can be easily assembled and disassembled to facilitate moving the entire sanitation system 100 (with the exception of seepage pit 300) to a new location to handle erosion issues. In addition, the modular design also helps simplify repairs to specific components as needed.
With particular reference to
Water to the water storage tank 416 may be provided in whole or in part via an exterior water container (not shown) outside the house or facility where the portable washbasin system 400 is deployed. In some embodiments, the water from the container may be drawn into the washbasin system 400 via a pump 418 housed within a lower compartment 420 of the lower cabinet 406. The pump 418 may be an electric suction pump or other suitable pump capable of drawing water from the water container as needed. In some embodiments, the exterior water container may be an open container for storing the water. Because the water container is open to the elements, debris and contaminants may be introduced into the water stored therein. Accordingly, the water pumped from the water container may be filtered via a dual gradient filter 422 to remove sediment and any contaminants prior to it being delivered and stored in the water storage tank 416. Filtering the water not only provides cleaner water for use via the sink 408, but it also helps protect the integrity of the water storage tank 416 and any downstream piping and fixtures. The filter 422 may be of any suitable design and specification for removing particle contaminants where the open water container is deployed. For example, in some embodiments, the filter 422 may be a dual stage 25 μm/1 μm nominal poly filter. It should be understood that in other embodiments, other filters and/or filtering methods may be used instead.
In some embodiments, the water in the storage tank 110 may be drawn from a pre-treated water source, or may instead be disinfected and/or purified via any suitable method to ensure that the water is safe for use. For example, in some embodiments, the portable washbasin 400 may include a water treatment system (not shown in
With reference to
In some embodiments, the receptacle 424 may include a water overflow sensor 428 designed to monitor the water level in the receptacle 424. In some embodiments, the overflow sensor 428 is positioned at a predetermined height relative to the receptacle 424 to ensure that water does not exceed the predetermined height and flow out of the receptacle 424. When the overflow sensor 428 detects that the water level in the receptacle 424 has reached the predetermined threshold value, such as when the receptacle 424 is 75% full, the overflow sensor 428 may generate an alarm to alert the user that the receptacle 424 should be emptied before it overflows. Depending on the specification of the overflow sensor 428, the alarm may take any one of various suitable forms. For example, in some embodiments, the sensor 428 may generate an audible alarm alerting the user of the water level and the need for the receptacle 424 to be emptied. In other embodiments, the sensor 428 may be wirelessly connected to a mobile phone or other electronic device and send a text message or email to the user. Once the user hears the audible alarm or receives the message, the user may then open the lower cabinet 406 and manually remove the receptacle 424 for disposal of the collected wastewater.
In some embodiments, the portable washbasin system 400 may be a standalone structure as described previously, with the portable washbasin system 400 being connected to an outdoor water source to provide clean water for handwashing and other hygiene activities. In other embodiments, the portable washbasin system 400 may instead be connected to an outdoor seepage pit system (similar to seepage pit system 300 of
In other embodiments, the portable washbasin system 400 may include both the receptacle 424 for manual disposal and a connection to an exterior seepage pit system for disposal of wastewater. Such embodiments may be advantageous in environmental conditions where the ground adjacent the seepage pit system undergoes freeze and thaw cycles during seasonal changes. For example, as described previously with reference to
In such embodiments, the portable washbasin system 400 may include a drain pipe (similar to drain pipe 426) with a first outlet arranged to direct wastewater to the receptacle 424 (in a similar fashion as described with reference to
In still other embodiments, the portable washbasin system 400 may be incorporated as part of the sanitation system 100 of
It should be understood that many of the features, components, and processes described in the embodiments of
The terms and descriptions used above are set forth by way of illustration only and are not meant as limitations. Those skilled in the art will recognize that many variations can be made to the details of the above-described embodiments without departing from the underlying principles of the invention.
This application is a continuation-in-part of and claims the benefit under 35 U.S.C. § 120 of U.S. patent application Ser. No. 16/508,148, filed Jul. 10, 2019, which claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Patent Application No. 62/696,763, filed Jul. 11, 2018, the disclosures of which are incorporated by reference herein in their entireties.
Number | Name | Date | Kind |
---|---|---|---|
187991 | Thompson | Mar 1877 | A |
345053 | Heap | Jul 1886 | A |
3045252 | Sorrells | Jul 1962 | A |
3579655 | Sundberg | May 1971 | A |
3601821 | Corsiglia | Aug 1971 | A |
3629874 | Beller | Dec 1971 | A |
4998302 | Silva | Mar 1991 | A |
5522411 | Johnson | Jun 1996 | A |
5860437 | Fernie | Jan 1999 | A |
6173459 | Ball | Jan 2001 | B1 |
6253394 | Goyette | Jul 2001 | B1 |
6615414 | Miller et al. | Sep 2003 | B2 |
7135116 | Haggerty | Nov 2006 | B2 |
7846143 | Abbato | Dec 2010 | B1 |
8082611 | Marshall | Dec 2011 | B1 |
8162145 | Merritt | Apr 2012 | B1 |
8245330 | Atkinson | Aug 2012 | B2 |
8528126 | Al-Mahnna | Sep 2013 | B2 |
8652413 | Vitali | Feb 2014 | B2 |
8844069 | Harvey | Sep 2014 | B1 |
9303420 | Van Der Linde | Apr 2016 | B2 |
9364124 | Morris | Jun 2016 | B2 |
9493937 | Derenoncourt | Nov 2016 | B2 |
9737180 | Banner et al. | Aug 2017 | B2 |
10123668 | Derenoncourt | Nov 2018 | B2 |
10271691 | Boyle | Apr 2019 | B1 |
11503963 | Lizotte | Nov 2022 | B2 |
20030019031 | Mosis | Jan 2003 | A1 |
20050199267 | Oakes | Sep 2005 | A1 |
20100050330 | Earlywine | Mar 2010 | A1 |
20130167293 | Nakaya | Jul 2013 | A1 |
20140172523 | Stob | Jun 2014 | A1 |
20150344323 | Mahdjoubi Namin | Dec 2015 | A1 |
20170007082 | Li | Jan 2017 | A1 |
20210321829 | Shell | Oct 2021 | A1 |
Number | Date | Country |
---|---|---|
2778171 | May 2006 | CN |
201510224 | Jun 2010 | CN |
3515906 | Nov 1985 | DE |
1020155 | Jul 2000 | EP |
40424 | Sep 2004 | RU |
2243916 | Jan 2005 | RU |
110390 | Nov 2011 | RU |
159122 | Jan 2016 | RU |
2004008930 | Jan 2004 | WO |
Entry |
---|
International Search Report and Written Opinion for Application No. PCT/US2020/035395, dated Sep. 3, 2020, 11 pages. |
International Search Report and Written Opinion for International Application No. PCT/US2019/041460, dated Oct. 17, 2019, 7 pages. |
EARTH2WENDY, My Separett Privy Tour, YOUTUBE, available at: https://www.youtube.com/watch?v=I5PNvqqwPOk, Aug. 27, 2017, from timestamp 6:15-7:10 (select screenshots attached). |
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20220031124 A1 | Feb 2022 | US |
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62696763 | Jul 2018 | US |
Number | Date | Country | |
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Parent | 16508148 | Jul 2019 | US |
Child | 17451740 | US |