Compositions: ceramic – Ceramic compositions – Pore-forming
Reexamination Certificate
1999-01-28
2001-06-12
Sample, David R. (Department: 1755)
Compositions: ceramic
Ceramic compositions
Pore-forming
C501S095100, C501S095200, C501S119000, C501S121000, C501S122000, C501S125000, C501S127000, C501S128000, C501S130000, C501S131000, C501S153000, C501S154000, C210S290000, C423S716000
Reexamination Certificate
active
06245701
ABSTRACT:
BACKGROUND OF THE INVENTION AND DESCRIPTION OF RELATED ART
The present invention relates to a porous ceramic for producing alkali ion water and a production method thereof.
A water purifier for general tap water is a device for filtering out suspended matter, residual chloride and microorganisms of coliform bacilli in the tap water and generally comprises a water purifier body and water treating materials such as active carbon and a hollow yarn filter, fitted as a unit in the interior of the purifier body.
A device for producing mineral water, comprising, together with the water treating materials, powder or splinters of a natural mineral, such as quartz porphyry or coral sand, which is fitted as a unit in the interior of a purifier body, has also been used conventionally for the purpose of producing mineral water in addition to the purified water.
The above-described water purifier for tap water is so constructed that water to be treated is passed through a single or multiple layer formed of active carbon and a hollow yarn filter. However, microorganisms of coliform bacilli have been detected in treated water at the initial stage upon its actual use. In addition, since the treated water has no bacteriostasis, there has been a possibility that the microorganisms may proliferate in the treated water.
In the conventional device for producing mineral water on the other hand, only a trace amount of minerals is dissolved out, so that the amount of minerals for producing the mineral water to be used must be increased for ensuring that the minerals are dissolved out in a prescribed amount. Therefore, it is unavoidable that the device is made larger, and so such a device inconveniently becomes large beyond the household unit size in the scales of weight and volume.
OBJECTS AND SUMMARY OF THE INVENTION
It is an object of the present invention to provide a porous ceramic for producing alkali ion water, by which a great amount of minerals can be dissolved out easily and efficiently.
Another object of the present invention is to provide a porous ceramic for producing alkali ion water, by which alkali ion water can be stably supplied upon the production of the alkali ion water.
A further object of the present invention is to provide a porous ceramic for producing alkali ion water, from which alkali ions such as sodium and calcium can be dissolved out by the reaction with water to make the pH of treated water alkaline and to provide the treated water as alkali ion water.
Still a further object of the present invention is to provide a porous ceramic for producing alkali ion water, which can make the pH of treated water alkaline, thereby imparting an antibacterial effect on microorganisms in the treated water.
Yet still a further object of the present invention is to provide a method for producing a useful porous ceramic which can efficiently produce the above alkali ion water.
The porous ceramic according to the present invention comprises finely particulate zeolite having an average particle size of 0.1 to 40 &mgr;m and an alkali ion producing material as components, wherein the components are fired into a sintered body. The ceramic according to the present invention may comprise a fibrous mineral and/or a clay mineral as a component. In this case, it may be preferable to use sepiolite and a kaolin group mineral as the fibrous mineral and the clay mineral, respectively.
The ceramic according to the present invention reacts with water to dissolve out alkali ions. Examples of the alkali ions include sodium, potassium, calcium and magnesium ions.
A device according to the present invention for producing the alkali ion water comprises a porous ceramic layer formed by charging the above-described porous ceramic into a tank, and is so constructed that water is passed through the porous ceramic layer. In the present invention, the device may also be so constructed that a layer of an active carbon filter and a layer of a hollow yarn filter are provided in addition to the porous ceramic layer to exhibit a filtering function against suspended matter and microorganisms.
The porous ceramic according to the present invention is excellent in water absorption property and hydrophilic nature and hence has an effect of being able to dissolve out a great amount of alkali ions with ease in contact with water to produce alkali ion water efficiently. In addition, the present invention has an effect of being able to stably supply alkali ion water over a long period of time upon the production of the alkali ion water. The alkali ion water produced contains useful components such as calcium and magnesium, makes the blood alkaline to facilitate the circulation of the blood, and serves both as a health drink which can contribute to the promotion of health and as a drink high in antibacterial activity due to its alkaline pH and safe for the human body.
Further, the ceramic according to the present invention permits the production of both alkali ion water in a pH region suitable for drinking and alkali ion water in a higher pH region suitable for sterilization and cleaning and hence has the advantage of being able to produce alkali ion water suited to the end application intended.
REFERENCES:
patent: 4510066 (1985-04-01), Saar
patent: 4510073 (1985-04-01), Hara et al.
patent: 5166107 (1992-11-01), Taga et al.
patent: 5618762 (1997-04-01), Shirawaka et al.
patent: 5637212 (1997-06-01), Kim
patent: 5695728 (1997-12-01), Miura et al.
patent: 5880048 (1999-03-01), Sato et al.
patent: 4-071640 (1992-03-01), None
Lewis, Hawley's Condensed Chemical Dictionary, p. 201, 1993.
Japan Zeolite, Inc.
Kanesaka & Takeuchi
Sample David R.
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