Baths – closets – sinks – and spittoons – Flush closet – With recirculating means
Reexamination Certificate
1998-12-10
2001-01-30
Recla, Henry J. (Department: 3751)
Baths, closets, sinks, and spittoons
Flush closet
With recirculating means
C004S318000, C004S319000, C004S320000, C004S321000, C210S195100
Reexamination Certificate
active
06178566
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Technical Field
The present invention generally relates to waste collection and treatment toilet systems. More particularly, the present invention relates to transportable toilet housing.
2. Background Information
Conventional transportable toilets merely collect waste. These systems, therefore, must either be emptied regularly or connected to a sewer. Because transportable toilets are used in temporary or remote locations, it is often burdensome to empty collected sewage regularly. Transportable toilets are often used at temporary sites for sporting events, outdoor concerts, county fairs, sites of disasters and others. These toilets can only be used for a short period of time before the sewage has to be removed. Transportable toilets are also used in remote locations, such as military training camps. Where sewage connections are scarce, these toilets can only be used for a short time.
Japanese utility model registration No. 3,023,323 was issued to the inventor of this application for an improved and water-flushing type transportable temporary toilet systems. In that systems, filthy water including discharges from a plurality of toilet stools installed in a housing is cleaned of solid wastes through a sediment separation chamber and then purified through an active water chamber of a three-phase flowing structure consisting of water, air and carrier particles holding aerobic microorganisms. Such purified water is supplied to toilet stools to make them clean at all times. Therefore, the temporary toilet systems disclosed therein is of the water-flushing type which makes the systems clean, sanitary and free of odor.
However, the purifying treatment of the water in the above described systems is not complete, although the water is got rid of solid wastes through the sediment separation chamber and is purified through the three-phase flowing structure in the active water chamber. The treated water still contains solid materials such as scum. If the treated water is used as flushing water for toilet stools, then there would be risk that such solid materials including scum is attached to the toilet stools. Accordingly, the above described toilet systems are not necessarily perfect or appropriate for their intended purposes.
SUMMARY OF THE INVENTION
It is, therefore, an object of the present invention to provide a transportable toilet housing that is a self-contained unit.
It is another object of this invention to provide a transportable toilet housing that can be easily transported or installed.
It is another object of the present invention to provide a transportable toilet housing and waste collection and treatment systems which can purify filthy water to a highest degree of purity to permit higher efficient reuse and recycling of water.
It is still another object of the present invention to provide transportable toilet housing and waste collection and treatment systems which can keep toilet stools clean and sanitary at all times.
It is another object of the present invention to provide a transportable toilet housing and waste collection and treatment systems which can remove solid wastes including scum from treated water to prevent those solid wastes from being attached to toilet stools.
It is another object of this invention to provide a transportable toilet housing and waste collection and treatment systems which can address shortage or excess of water supply and regulate the flow of water through the use of electromagnetic valves.
It is yet another object of this invention to provide a transportable housing toilet that can be used simultaneously by many people over an extended period of time.
It is yet still another object of this invention to provide a transportable toilet housing that requires little maintenance.
It is another object of this invention to provide a transportable toilet housing and waste collection and treatment systems which can conserve water, and therefore be economical.
It is another object of this invention that it is possible to separate the men and women's rooms and freely structure the toilet house according to the purpose of its use.
Briefly, the present invention satisfies the above identified problems and overcomes these shortcomings through the provision of a transportable waste collection and treatment system. The toilets are directly connected to a chamber where waste is collected. This arrangement resolves the imbalance of excrement volume. The waste is then separated and removed from the water. This reduces the amount of waste that collects, allowing the toilets to be used over a long period of time. Further, water is conserved as it is treated and reused as flushing water. The toilets are also in a constant flushing state which eliminates the need for flushing tools, and consequently eliminates the problem of defective or broken flushing tools. Finally, the air dispersion system over-delivers air and prevents odor from rising out of the toilet discharge outlet.
According to a first embodiment of the present invention, there is provided a transportable toilet housing and waste collection and treatment system which comprises a housing, an active circulation chamber for receiving wastes thrown from toilet stools and exposing the wastes to air together with wastewater, an active water chamber for receiving the wastewater subjected to air exposing in the active circulation chamber and purifying the wastewater through a three-phase flowing structure including water, air and carrier particles holding aerobic microorganisms as filtering material, a sediment separation chamber for receiving the treated water purified in the active water chamber and settling down and separating solid materials from the treated water, a water reservoir for receiving the purified water after removed of the solid materials through the sediment separation chamber, means for supplying the treated water from the water reservoir to the toilet stools, and a sediment storage chamber for receiving and storing the solid materials settled down to a bottom of the sediment separation chamber, wherein the active circulation chamber, the active water chamber, the sediment separation chamber, the water reservoir and the sediment storage chamber is housed as a single unit within the housing and the toilet stools are also installed in the housing.
It is preferable to install a scum skimmer in the sediment separation chamber to remove scum floating on a surface of the processed water and to lead the removed scum to the active circulation chamber.
The interior of the housing is divided into a machine room containing the active water chamber, the sediment separation chamber, the water reservoir and the sediment storage chamber and a toilet room containing the toilet stools. The active circulation chamber is formed below the toilet room.
These, and other objects, features and advantages of this invention will become apparent from the following detailed description of the preferred embodiment taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 3598236 (1971-08-01), Nordlander et al.
patent: 5560821 (1996-10-01), Leo et al.
patent: 3-100241 (1991-04-01), None
patent: 8-277566 (1996-10-01), None
Brown & Raysman Millstein Felder & Steiner LLP
Nguyen Tuan
Nihon Shinko Co., Ltd.
Recla Henry J.
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