Gas and liquid contact apparatus – Fluid distribution – Valved
Reexamination Certificate
1999-04-29
2001-05-29
Chiesa, Richard L. (Department: 1724)
Gas and liquid contact apparatus
Fluid distribution
Valved
C137S855000, C261S076000, C261SDIG007
Reexamination Certificate
active
06237897
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to oxygenators and more particularly pertains to a new oxygenator for oxygenating water in swimming pools.
2. Description of the Prior Art
The use of oxygenators is known in the prior art. More specifically, oxygenators heretofore devised and utilized are known to consist basically of familiar, expected and obvious structural configurations, notwithstanding the myriad of designs encompassed by the crowded prior art which have been developed for the fulfillment of countless objectives and requirements.
Known prior art includes U.S. Pat. No. 5,172,432; U.S. Pat. No. 4,752,401; U.S. Pat. No. 5,660,802; U.S. Pat. No. 5,582,719; U.S. Pat. No. 5,066,408; and U.S. Pat. No. 5,034,110.
While these devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not disclose a new oxygenator. The inventive device includes a chamber having a port outwardly extending therefrom for drawing air into the chamber. A venturi is extended through the chamber. The venturi has opposite inlet and outlet ends, opposite generally frusta-conical inlet and outlet portions and an intermediate portion interposed between the inlet and outlet portions of the venturi. The intermediate portion of the venturi has a plurality of spaced apart apertures therethrough to permit passage of air in the chamber into the intermediate portion of the venturi.
In these respects, the oxygenator according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in so doing provides an apparatus primarily developed for the purpose of oxygenating water in swimming pools.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of oxygenators now present in the prior art, the present invention provides a new oxygenator construction wherein the same can be utilized for oxygenating water in swimming pools.
The general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new oxygenator apparatus and method which has many of the advantages of the oxygenators mentioned heretofore and many novel features that result in a new oxygenator which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art oxygenators, either alone or in any combination thereof.
To attain this, the present invention generally comprises a chamber has a port outwardly extending therefrom for drawing air into the chamber. A venturi is extended through the chamber. The venturi has opposite inlet and outlet ends, opposite generally frusta-conical inlet and outlet portions and an intermediate portion interposed between the inlet and outlet portions of the venturi. The intermediate portion of the venturi has a plurality of spaced apart apertures therethrough to permit passage of air in the chamber into the intermediate portion of the venturi.
There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the invention that will be described hereinafter and which will form the subject matter of the claims appended hereto.
In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.
As such, those skilled in the art will appreciate that the conception, upon which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.
Further, the purpose of the foregoing abstract is to enable the U.S. Patent and Trademark Office and the public generally, and especially the scientists, engineers and practitioners in the art who are not familiar with patent or legal terms or phraseology, to determine quickly from a cursory inspection the nature and essence of the technical disclosure of the application. The abstract is neither intended to define the invention of the application, which is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.
It is therefore an object of the present invention to provide a new oxygenator apparatus and method which has many of the advantages of the oxygenators mentioned heretofore and many novel features that result in a new oxygenator which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art oxygenators, either alone or in any combination thereof.
It is another object of the present invention to provide a new oxygenator which may be easily and efficiently manufactured and marketed.
It is a further object of the present invention to provide a new oxygenator which is of a durable and reliable construction.
An even further object of the present invention is to provide a new oxygenator which is susceptible of a low cost of manufacture with regard to both materials and labor, and which accordingly is then susceptible of low prices of sale to the consuming public, thereby making such oxygenator economically available to the buying public.
Still yet another object of the present invention is to provide a new oxygenator which provides in the apparatuses and methods of the prior art some of the advantages thereof, while simultaneously overcoming some of the disadvantages normally associated therewith.
Still another object of the present invention is to provide a new oxygenator for oxygenating water in swimming pools.
Yet another object of the present invention is to provide a new oxygenator which includes a chamber has a port outwardly extending therefrom for drawing air into the chamber. A venturi is extended through the chamber. The venturi has opposite inlet and outlet ends, opposite generally frusta-conical inlet and outlet portions and an intermediate portion interposed between the inlet and outlet portions of the venturi. The intermediate portion of the venturi has a plurality of spaced apart apertures therethrough to permit passage of air in the chamber into the intermediate portion of the venturi.
Still yet another object of the present invention is to provide a new oxygenator that oxygenates pools inexpensively and without energy expenditure.
Even still another object of the present invention is to provide a new oxygenator that may also be used to treat a water supply of residential and industrial applications and that may also be used to mix chemicals into a fluid supply.
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patent: 3693656 (1972-09-01), Sauer
patent: 4041981 (1977-08-01), Davis et al.
patent: 4562014 (1985-12-01), Johnson
patent: 4743405 (1988-05-01), Durao et al.
patent: 4752401 (1988-06-01), Bodenstein
patent: 4761077 (1988-08-01), Werner
patent: 5034110 (1991-07-01), Gore et al.
patent: 5066408 (1991-11-01), Powell
patent: 5172432 (1992-12-01), Beland
patent: 5413142 (1995-05-01), Johnson et al.
patent: 5520856 (1996-05-01), Garrett et al.
patent: 5582719 (1996-12-01), Nagano
patent: 5660802 (1997-08-01), Archer et al.
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