Liquid purification or separation – Structural installation – Closed circulating system
Patent
1997-07-07
1999-03-09
Woo, Jay H.
Liquid purification or separation
Structural installation
Closed circulating system
2101951, 2104162, B01D 1700
Patent
active
058795472
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates, in particular, to the filtering of water in swimming pools.
Generally speaking, filtration is obtained by means of one or more filters, which may have various structures, with the filters being fitted in combination with a water suction and delivery system. Various solutions can be used to fulfil this function.
For example, all the pumping and filtration equipment can be situated in a plant room located outside the pool. Such facilities can also be integrated in a compact unit and fitted in combination with the panels of the swimming pool.
Finally, as disclosed by Patent FR 2682981 of which the present Applicant is the holder, the means of pumping and filtration can be integrated in a panel that can be fitted in combination with the other panels that make up the swimming pool. This filtration panel is obtained by injection moulding of plastics. The means of pumping and filtration are fitted in two juxtaposed compartments arranged side by side.
SUMMARY OF THE INVENTION
Starting from this design, the aim was to improve the characteristics of the filtration panel in terms of its technical design, its structure, its features and its method of manufacture, which was to be simplified in order to reduce costs significantly.
The aim was also to improve the sealing and simplify the integration of a floodlight.
In order to solve this problem, a filtration panel was designed and developed which comprises a compact unit having two independent internal compartments and distinctive by virtue of the fact that: the other, of filtering,
the compartment is situated directly on the front surface of the unit, compartment by a partition, filtering and pass through a sealed bulkhead in the vertical separating partition, entire unit.
This combination of characteristics makes it possible to obtain a filtration panel for swimming pools by using the rotational moulding technique.
Still with the aim of increasing its rigidity, the panel has a bracing strut between its front and its rear.
In order to solve the problem of increasing the filtration capacity, the means of filtering consists of two filter cartridges arranged vertically in combination with a locating plate, said cartridges allowing the natural flow of water from the top to the bottom.
The suction and delivery pipes rest on support cradles provided on the separating partition in combination with compression seals and a thermoformed plate.
Another problem that the invention aims to solve is to simplify the installation and adaptation of one or more floodlights.
This problem is solved by the fact that the front surface of the panel has integral features, made during the rotational moulding process, to position at least one floodlight.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described below in more detail, reference being made to the accompanying drawings in which:
FIG. 1 is a perspective view of a swimming pool equipped with a filtration panel according to the invention.
FIG. 2 is a perspective view of the inside of the filtration panel.
FIG. 3 is a longitudinal sectional view of the unit.
FIG. 4 is a cross sectional view along line 4.4 in FIG. 3.
FIG. 5 is a schematic view of a pool equipped with the present invention.
DESCRIPTION OF THE INVENTION
According to the invention, the panel comprises a body (1) obtained by rotational moulding which is shaped to form a compact unit having two independent internal compartments (1a) and (1b) separated by a vertical partition (1c).
It is pointed out that rotational moulding involves, as is well known to those skilled in the art, moulding a hollow component made of plastic, especially polyethylene, by rotation.
More particularly and as shown in FIG. 2, the two compartments (1a) and (1b) are of different height and are arranged one behind the other. The taller compartment (1a) is designed to be filled with water and has means of filtering. This compartment (1a) is therefore situated immediately at the level of the front surface (1d) of the unit and is intended to b
REFERENCES:
patent: 2980256 (1961-04-01), Nash
patent: 3532217 (1970-10-01), Richards
patent: 5178523 (1993-01-01), Cheng-Chung
Desjoyaux Jean Louis
Desjoyaux Pierre Louis
Jandros Catherine
Morrison Betsey J.
Piscines Desjoyaux S.A.
Woo Jay H.
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