[0001] The present invention concerns a skimmer for swimming pools or swimming ponds, in
particular for removing leaves or other dirt which may be situated on the surface
of the water.
[0002] Such a swimming pool skimmer is known as such, but the known skimmers have some disadvantages
that have not been recognized as such before the present invention.
[0003] A skimmer for swimming pools or swimming ponds according to the present invention
mainly consists of a housing in which can be provided a strainer or a filter that
is pervious to water, and which housing is provided with an intake via which the water
to be purified can be supplied, a discharge orifice through which the purified water
can be carried back to the swimming pool or the swimming pond, an opening via which
the strainer or the filter that is pervious to water can be cleaned and can possibly
be removed to that end, whereby the skimmer is also provided with a tubular element
which can be provided with a first open end and which can be connected to the above-mentioned
intake, such that the second open end of the tubular element can serve as a point
of inflow for the skimmer, which is then provided at a distance from the housing of
the skimmer.
[0004] One of the advantages which is thus obtained is that the skimmer, thanks to the presence
of the tubular element, can be provided at a distance from the swimming pool, such
that the border tile must not be interrupted.
[0005] Indeed, the opening via which the strainer or the filter that is pervious to water
can be cleaned must be accessible and is usually covered with a lid which is incorporated
in the border tile, in which has been provided an opening to that end or which is
interrupted at the skimmer to that end.
[0006] Thanks to the tubular element, the housing can be provided at a larger distance from
the swimming pool edge, such that the lid can be provided next to the border tile.
[0007] Another advantage consists in that the tubular element can be made such that it can
be placed exactly under the border tile, such that the water level can reach up to
exactly under the border tile.
[0008] According to a preferred embodiment, the tubular element is provided with connecting
means such as for example flanges on one or on both far ends.
[0009] This makes it possible to fix the tubular element in a simple manner to the housing
of the skimmer, or to extend the tubular element with one or several extension pieces
and/or to provide the tubular element with an ornamental cover edge at the point of
inflow of the skimmer.
[0010] Such an extension piece preferably mainly coincides with the tubular element in order
to restrict the costs for the mould and the stock costs.
[0011] In order to better explain the characteristics of the invention, the following preferred
embodiments of a skimmer for swimming pools according to the invention are described
as an example only without being limitative in any way, with reference to the accompanying
drawings, in which:
figure 1 shows a swimming pool in perspective which is provided with a skimmer according
to the invention;
figure 2 represents the skimmer to a larger scale in perspective, as indicated by
F2 in figure 1;
figure 3 is an exploded view of the skimmer according to figure 2;
figure 4 is an exploded view of a skimmer variant according to the invention.
[0012] Figure 1 represents a fitted skimmer 1 for a swimming pool 2 that is in use.
[0013] Figures 2 and 3 represent the skimmer 1 according to the invention in more detail,
which mainly consists of a predominantly cylindrical housing 3 in which is provided
a removable basket 4.
[0014] The housing 3 is provided with a removable lid 5 on its top to that end.
[0015] At the bottom, the predominantly cylindrical housing 3 is provided with a discharge
orifice 6 onto which can be connected a non-represented return line and an appropriate
pump.
[0016] In the casing 7 of the predominantly cylindrical housing 3 is provided a recess 8
which serves as an intake of the housing 3, around which is provided a standing edge
9 directed to the outside of the housing 3 onto which is provided a first flange 11
at the free end 10.
[0017] The first flange 11 has a rectangular shape in this embodiment and is provided with
screw holes 12.
[0018] On the first flange 11 is provided a reduction plate 13 in this embodiment, in particular
by means of screws which work in conjunction with the above-mentioned screw holes
12, and between the first flange 11 and the reduction plate 13 is provided a first
packing 14.
[0019] The reduction plate 13 mainly has outside dimensions in this case which correspond
to the first flange 11, and it is provided with a predominantly rectangular opening
15 in this case.
[0020] On the reduction plate 13 is provided a tubular element 16 which is provided with
a second flange 18 at its first free end 17 and over its entire perimeter, and a second
packing 19 is provided between the reduction plate 13 and said second flange 18.
[0021] In this embodiment, the tubular element 16 has a predominantly rectangular cross
section which corresponds to the predominantly rectangular opening in the reduction
plate.
[0022] At its second free end 20 forming the point of inflow of the skimmer, in particular
along the bottom side and along the two side edges, the tubular element 16 is provided
with a third flange 21, provided with screw holes 22 onto which can be provided a
U-shaped decorative cover edge 23 by means of screws 24.
[0023] Between the third flange 21 and the U-shaped decorative cover edge 23 is provided
a third packing 25.
[0024] At the third flange 21 is provided a non-return valve 26, hinge-mounted at the bottom
to the tubular element 16 in this embodiment and provided with an inner space at the
top which is not visible and which provides a driving power to the non-return valve
26.
[0025] The working of the skimmer for swimming pools as described above is simple and as
follows.
[0026] A pump, provided for example in the return line between the skimmer 1 and the connection
of the return line and the swimming pool 2, makes sure that the surface water of the
swimming pool 2 as well as the leaves and other dirt lying on the water is led through
the skimmer 21 via the point of inflow.
[0027] The leaves and other dirt are retained in the skimmer 1, in particular in the basket
4, whereas the purified water is carried back to the swimming pool via the return
line.
[0028] It is clear that the basket 4 can just as well be replaced by another type of strainer
or filter that is pervious to water.
[0029] Thanks to the presence of the tubular element, the distance between the inlet point
and the housing 3 in which the basket 4 is provided becomes larger, such that the
lid can be placed past the border tile of the swimming pool 2.
[0030] Thus, the border tile must not be interrupted, which offers an enormous advantage.
[0031] The reduction plate 13 makes it possible to preserve the existing housing 3 of a
known skimmer and, as far as the overall height is concerned, to neatly line up the
lid 5 with the height of the sods on the one hand, and to provide the intake point
exactly under the border tile on the other hand.
[0032] The packings provide for a good sealing and prevent leaks.
[0033] According to a variant of the embodiment, as represented in figure 4, a second tubular
element 27 is provided between the reduction plate 13 and the tubular element 16.
Between the first tubular element 16 and the second tubular element 27 is in this
case provided a fourth packing 28.
[0034] Such a second tubular element 27 makes it possible to provide the housing of the
skimmer at an even larger distance from the inlet point.
[0035] It is clear that the skimmer according to the invention can also be applied to swimming
ponds.
[0036] The invention is by no means restricted to the embodiments described above and represented
in the accompanying drawings; on the contrary, such a skimmer for swimming pools can
be made in different variants while still remaining within the scope of the invention.
1. Skimmer for swimming pools or swimming ponds which mainly consists of a housing (3)
in which can be provided a strainer or a filter (4) that is pervious to water, and
which housing (3) is provided with an intake (8) via which the water to be purified
can be supplied, a discharge orifice (6) through which the purified water can be carried
back to the swimming pool (2) or the swimming pond, an opening via which the strainer
or the filter (4) that is pervious to water can be cleaned and can possibly be removed
to that end, characterised in that the skimmer (1) is also provided with at least one tubular element (16) or the like
which can be provided with a first open end (17) on and can be connected to the above-mentioned
intake (8), such that the second open end (20) of the tubular element (16) can serve
as a point of inflow for the skimmer (1), which is then provided at a distance from
the housing (3) of the skimmer (1).
2. Skimmer according to claim 1, characterised in that the tubular element (16) is provided with connecting means on one or on both far
ends.
3. Skimmer according to claim 2, characterised in that the connecting means are flanges.
4. Skimmer according to claim 1, characterised in that a reduction (13) is provided between the housing (3) and the tubular element (16).
5. Skimmer according to claim 1, characterised in that the tubular element (16) is provided with a U-shaped flange (21) on at least one
or both free ends (17,20), along the bottom side and along two side edges.
6. Skimmer according to claim 1, characterised in that between the reduction plate (13) and the tubular element (16) are provided one or
several additional tubular elements (27).
7. Skimmer according to claim 1, characterised in that the tubular element (16) is extendible.