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  Filtering structure for swimming poolUSPTO Application #: 20070187311Title: Filtering structure for swimming pool Abstract: A filtering structure intended to be incorporated in a vertical swimming pool wall has a filtering device and a pumping device with the pumping device having an electrical part, including an electric motor, and a hydraulic part equipped with a turbine. The filtering structure has a suction port facing towards a nominally horizontal access passageway partly submerged in water, and emerging towards a nominally vertical tank arranged thereunder. The filtering structure has a tank communicating with a nominally vertical column, partly in the upper part of which is arranged the hydraulic part. The electrical part is arranged above the level of the water to be treated and is contained in the nominally horizontal access passageway, while the hydraulic part is immersed in a volume of filtered water. (end of abstract) Agent: Charles N.j. Ruggiero Ohlandt, Greeley, Ruggiero & Perle, L.L.P. - Stamford, CT, US Inventors: Jacques Braun, Pierre Baysse, Pierre Le Guillou USPTO Applicaton #: 20070187311 - Class: 210167100 (USPTO) The Patent Description & Claims data below is from USPTO Patent Application 20070187311. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED PATENT APPLICATIONS [0001] The present application is a continuation of U.S. patent application Ser. No. 10/491,177 filed Aug. 13, 2004 entitled "Filtering Structure For Swimming Pool," now pending, which claims priority of PCT International Application No. PCT/FR02/03333 filed on Sep. 30, 2002, and French Application No. 01/12635 filed on Oct. 1, 2001. The aforementioned applications are hereby incorporated herein by reference in their entirety. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention concerns the field of swimming pool water filtration and, more particularly, relates to a filtering structure designed to be incorporated in one of the generally vertical walls of a swimming pool. [0004] 2. Description of Related Art [0005] A plurality of filtering devices of this type have to date been proposed. They comprise mainly a portion immersed in the water of the swimming pool, equipped with a suction port and a discharge outlet for water once it has been filtered. They also comprise filtering and pumping means located outside the pool basin, either at a locality technically developed for this purpose at a more or less considerable distance from the pool basin, or in a space such as a casing, directly adjacent to the immersed portion. [0006] The pumping and filtering means, such as, for example, sand or cartridge filters or filtering bags, are interconnected by connecting pipes, the said pumping and filtering means allowing the passage of water through the connecting pipes. The unit is furthermore connected to a suction port by way of suction pipes and to a discharge outlet by way of backflow pipes. [0007] The presence of these pipes, even if less important when the filtering and pumping device is in the form of a casing, inevitably brings about load losses diminishing the performance of the known systems. These losses are generally compensated for by using "oversized" pumping means, in particular with regard to the electric motor. Moreover, in the prior art devices, the connecting pipes often pass above the water level, resulting in priming difficulties. [0008] The use of oversized pumping means results of necessity in increased production costs, but also in higher energy consumption and therefore a higher electricity bill of the owner of a pool equipped with such devices. [0009] It is imperative that the pipe unit is perfectly watertight in order to prevent leaks or the intake of air detrimental to the proper functioning of the unit. [0010] Furthermore, the devices whose pumping and electric control means are arranged in an underground location adjacent to or remote from the immersed portion, are subjected to flooding in case of heavy rains, resulting inevitably in serious damage to the pumping system or imposing considerable and costly work in order to carry out gravitational drainage at the bottom of the technical location. SUMMARY OF THE INVENTION [0011] It is the object of the invention to overcome the above mentioned drawbacks. [0012] For this purpose, the invention proposes a filtering structure designed to be incorporated in one of the generally vertical walls of a swimming pool, comprising filtering and pumping means consisting of an electric part including in particular an electric motor, and a hydraulic part, equipped with a turbine, the said structure comprising a suction port facing towards a generally horizontal access passageway submerged partly in the water and emerging towards a generally vertical tank arranged thereunder and wherein are arranged the filtering means, for example a filtering bag, the said tank communicating with a generally vertical column, partly in the upper part of which is arranged the hydraulic part of the pumping means. [0013] The main characteristic of this structure resides in the fact that the electric part of the pumping means is disposed above the level of water to be treated, contained in the generally horizontal access passageway, while the hydraulic part is immersed in the volume of filtered water. [0014] The generally horizontal access passageway serves as what the person skilled in the art denotes by the Anglicism "skimmer", meaning that it treats the superficial layers of a liquid and forming in effect an integral part of the tank interior. [0015] With the filtering structure configured in this manner, suction pipes are completely dispensed with and the backflow pipes are limited or even done away with, the volume containing the filtering means being in direct contact with the volume containing the hydraulic part of the water pumping means. [0016] The disposition in this manner puts a complete end to load losses as a result of pipes such as those in the prior art and allows the utilization of more economical and less energy-consuming pumping means. [0017] The positioning of the motor above the water level allows to obviate water-tightness between electric and hydraulic pump parts which are always difficult to realize and to maintain. Finally, the fact that the motor is positioned in the upper portion of the filtering structure rather than laterally makes the unit more compact and easier to access. [0018] Preferably, the motor is supported by a flange forming part of the upper side of the generally horizontal access passageway. [0019] Also preferably, the electric motor is in a vertical position, substantially normal to the hydraulic part of the pumping means, the transmission between the said electric motor and the said hydraulic part coming about with the aid of a generally vertical transmission shaft traversing the generally horizontal access passageway. This disposition allows in addition good transmission of the torque and the motor speed to the hydraulic part. [0020] However, it is conceivable to place the motor in a horizontal position. Its output shaft will then be normal to the generally vertical transmission shaft controlling the hydraulic part. The transmission of the motor movement comes about conventionally in this case by way of bevel gears or ring and pinion gearing. [0021] A casing disposed in the access passageway protects the transmission shaft between the electric motor and the hydraulic part of the pumping means. Continue reading... Full patent description for Filtering structure for swimming pool Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Filtering structure for swimming pool patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Filtering structure for swimming pool or other areas of interest. ### Previous Patent Application: Method and apparatus for separating oil and debris from water run-off Next Patent Application: Heating element for a filter press Industry Class: Liquid purification or separation ### FreshPatents.com Support Thank you for viewing the Filtering structure for swimming pool patent info. 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