Chemical apparatus and process disinfecting – deodorizing – preser – For deodorizing of – or chemical purification of – or... – Including solid – extended surface – fluid contact reaction...
Reexamination Certificate
1998-09-23
2001-03-06
Thornton, Krisanne (Department: 1744)
Chemical apparatus and process disinfecting, deodorizing, preser
For deodorizing of, or chemical purification of, or...
Including solid, extended surface, fluid contact reaction...
C239S045000, C239S052000, C422S124000
Reexamination Certificate
active
06197262
ABSTRACT:
DESCRIPTION
The present invention relates to a device that permits the treatment of air in a room in order to obtain its depuration as well as its sanitization.
Such a device is basically composed of a plurality of perforated discoid elements partially immersed in a suitable liquid and when made to rotate, after immersion, are traversed by the air to be treated and hence return to the liquid.
Similar devices are known, for example that described in the U.S. Pat. No. 3,353,337 (Gale) which however serves essentially for the removal of solid particles and vapours from gasses passing through it.
In such a device the gas to be treated is conveyed through perforations of a considerable size, made on rotating discs and arranged alternately with subsequent discs, and compelled, passing through the perforations of one disc, to impinge upon the solid part of the successive disc onto which dust deposits and this is then removed by scraping elements, accumulating at the bottom of the tank in which the discs are arranged and from which it is finally evacuated by means of a suitable extractor. The gas can then pass through successive groups of discs that are partially immersed in a liquid so that on their wet surfaces are deposited ulterior pollutants. An eventual further group of dry discs may follow serving to dry the previously treated gas. Such a device is considerably complex both structurally and functionally, its efficiency is considerably limited, it necessitates considerable dimensions with respect to the volume of gas that it can treat and lastly further treatment resulting in the sanitization of air is neither foreseen nor practicable. Other devices partially similar to the present invention are mentioned in the U.S. Pat. No. 3,350,887 (Bowman) and U.S. Pat. No. 1,535,335 (Koehler) which concern specific solutions for muffling and/or filtering elements of gas exhausts in endothermic engines and therefore have nothing to do with the aims and purposes of the device in object which, moreover, differs from these both structurally and functionally.
The only element partially similar contained in the present device, the above mentioned devices moreover in other devices, all with different aims and purposes such as those described in U.S. Pat. Nos. 3,733,062—2,703,228—1,584,635 and others, is the application of rotating discs which are perforated or variously conformed and which totally or partially in various ways come into contact with a liquid.
Having premised as much, the aims and purposes attainable with the device of this present invention can now be expounded.
It is well known that the air in diverse environments, for various reasons is often polluted by various substances which can be generated within the environments themselves or penetrate from the external atmosphere.
Particularly in closed environments such as dwellings or work premises, people suffer more or less considerably from the effects of inspiring contaminated air.
Often dust itself that normally exists in any environment can contain substances and/or particles such as pollen, dust mites etc. capable of provoking allergic reactions in many individuals.
In industrial premises, the development of various types of contamination can generate situations at times merely annoying such as obnoxious odours which in many cases can result to be also dangerous. Moreover, as is also well known, air normally contains, in addition to normal pollutants such as dust, vapours and gasses, bacteria and viruses which, especially in hospital environments, can be dangerous due to their capability of carrying and/or spreading diseases of a various nature.
REFERENCES:
patent: 3282776 (1966-11-01), Kitzke et al.
patent: 3353337 (1967-11-01), Gale
patent: 4229408 (1980-10-01), Bennett et al.
patent: 4734109 (1988-03-01), Cox
patent: 4999302 (1991-03-01), Kahler et al.
patent: 5292479 (1994-03-01), Haraga et al.
Thornton Krisanne
Wenderoth , Lind & Ponack, L.L.P.
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