WO2017100820A1

WO2017100820A1 - Portable water spray device

Info

Publication number: WO2017100820A1
Application number: PCT/AU2016/000398
Authority: WO
Inventors: Nick STOREY
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-14
Filing date: 2016-12-13
Publication date: 2017-06-22
Anticipated expiration: 2018-06-14

Abstract

A self-contained portable water spray device for playing and cooling children and adults.

Description

PORTABLE WATER SPRAY DEVICE

FIELD The present invention relates to a recreational device that allows people to cool and play under continuous water sprays.

BACKGROUND

On hot days, people often look to go to the water to cool down and may choose to visit beaches or other swimming areas but it is sometimes either not desirable or not possible to enter the water. Beaches may be closed due to water conditions, a lack ot surf patrols, or the presence of animals including sharks or jellyfish. Other waterways like rivers, dams and lakes may be closed due to flood conditions, debris or fast flowing water. In additional beaches and waterways may be closed due to sporting events or the like.

Without access to water, people cannot effectively cool down and/ or play in the water. Some beaches provide outdoor showers but they are not effective at cooling and cannot be used for play. Some recreational areas provide water park areas built into the infrastructure, but these devices suffer from a number of drawbacks including cost to build and the need for water recycling which requires chemical dosing, UV and other treatment.

SUMMARY OF THE INVENTION

According to a first aspect of the present invention there is provided a portable play device for spraying water from an open water source onto user(s) comprising:

a housing;

a pump to draw water from the water source; and

one or more spray (s) to spray the water from the device onto the user(s). The self-contained device of the present invention enables people, particularly children, to enjoy the cooling effect of water via the spray(s) by way of an inexpensive portable system that uses water direct from a water source without the need for expensive infrastructure or chemical dosing, UV and other treatments. The device can take advantage of local open water sources, such as natural water sources including seawater, harbours, dams, lakes, or rivers; or man-made open water sources like swimming pools and the like. The device of the present invention does not require the use of either recycled water or expensive potable (mains supply) water. The device of the present invention is able to utilise available local water sources, and does not require a purpose built water supply, for example mains water or a closed loop water source used in fixed water devices. As such, the device of the present invention is able to utilise any available existing water source without needing water supply infrastructure.

According to a further aspect there is provided a portable play device for spraying water trom a water source onto user(s) comprising:

a housing;

a pump to draw water from the water source;

one or more spray(s) to spray the water from the device onto the user(s); and a stabilisation mechanism that stabilises the device in use, but allows the device to be moved when not in use.

According to a yet further aspect, there is provided a portable play device for spraying water trom a water source onto user(s) comprising:

a housing;

a suction hose;

a pump, to pump water from the water source via the suction hose;

a power source to operate the pump;

an optional stabilisation mechanism that stabilises the device in use, but allows the device to be moved when not in use; and

one or more spray(s) for spraying water, including: high-level fan spray(s) to deliver medium to large droplet spray s in arcs a distance from the unit; and/ or low-level misting spay(s) to deliver fine misting, tor example around the base of the unit, to allow user(s) to play close to the unit. According to a further aspect, there is provided a method of providing a water based play area on land suitable for children and/or adults comprising:

placing a portable spraying device as described herein beside a water source;

optionally further stabilising the device;

pumping water from the water source through the device and out of the spray(s) to create a spray and/ or mist.

The present invention provides a versatile play device. Although the device can project a spray over a wide area and thus provide a good size play zone, it is portable allowing it to be easily relocated depending on need. For example, the device could be moved into position each morning and taken away to be stored at night. Its portable nature avoids the high infrastructure costs of an in-build system. In addition, because it can make use of a local water supply, it does not require expensive and complex water treatment systems needed for recycled water. The portable spray device of the present invention enables 'pop up' water parks to be created when and where the need arises. In certain embodiments, the use of a stabilisation mechanism helps ensure the device is robust and safe to use in a busy public environment since it receives additional stabilisation from being moved or falling over.

The device is contemplated for use in a wide range of locations. It is particularly suited to a beach where it can make use of seawater but it can be equally used in any location where there is access to open water, for example a harbour, dam, lake or river. As well as using natural water sources, the device can be used beside a pool or other man-made water feature.

By using a natural water supply, there are no concerns about the quality or the cost of the water usage. If a water-spraying device is connected to potable (mains) water, it will quickly use a large quantity of water, which has environmental and cost implications. Existing spray devices overcome this problem by using a recycled water source. However, with recycled water comes issues over the cleanliness of the water leading to the need for water treatment. In contrast, the device of the present invention can be connected directly to the existing free and clean water supply. There are no concerns about a device spraying hundreds of litres of water a minute all day since the device is drawing water from the sea, a river or lake. The water is clean and limitless. Even if the device is drawing water from a pool, the spray radius can be tailored to ensure that the water flows back into the pool. Of course, while the use of an open water source is preferred, the device can be connected to a potable (mains) water source if desired. The device may comprise a water suction member to extract water from the water source.

Suitable water suction members include hoses or pipes. In a particularly preferred embodiment, the member is a hose. For the purposes of the present invention, the term hose will be used to describe the water suction member although any equivalent item that performs the same function, for example a pipe or the like, are encompassed by the present invention. The diameter and length of the hose will depend on the volume of water to be sprayed through the device. This will depend on the power of the pump, the distance the device is located from the water source and the vertical difference between the water source and pump. In a preferred embodiment, the hose will be capable of sendee at a negative pressure of 5 metres/head. The hose may be made of any suitable material. In a preferred embodiment, the hose is a UV stabilised PV C suction hose.

If the device is used on a beach, the hose may be buried in the sand from the spray device down to the water so as to prevent a trip hazard. When the device has finished operating, the hose can be uncovered and stored with the device. If the device is used by a pool or other water source where it is not feasible to bury the hose, precautions may be taken to prevent the hose from causing a trip hazard or being dislodged from the device or removed from the water. While in use, the hose is attached to the device, either as an integral part or more preferably as a detachable item since a detachable hose has the advantage that it can easily be replaced if it becomes damaged. While it is contemplated that a hose is used with the device, the hose does not need to be supplied with the device and the user can source one themselves. As such, a device without a hose is still encompassed by the present invention since it can be supplied and added separately by a user.

In a preferred embodiment, a rope (zip-rope) is associated with the suction hose. The rope is preferably a small or medium diameter rope. The rope is attached at one end to the suction filter and at the other end to the device and is laid with the suction hose and buried. When retrieving the hose and filter, the rope is pulled up first, effectively un-zipping and breaking the surface tension of the sand, allowing easy pulling out of the hose and filter.

The device of the present invention is designed to be used in a variety of environments, including those where the water contains particulate matter. In particular, the device may be used on a beach where sand will be mixed with the water being drawn into the device. I t the device is to be used in a sandy environment, it is advantageous if the inlet ot the suction hose comprises a sand filter. This prevents or reduces sand particles entering the device and potentially clogging the pump, sprays or other areas.

In a preferred embodiment, the suction filter is capable of delivering filtered water at a high flow rate. This allows the device to draw a high water flow rate while effectively filtering out sand and other particulate material. Without an effective sand filtration mechanism, the device would become clogged and the ability to draw water would be diminished. The flow rate achievable by the suction filter will depend on the volume of water desired to be sprayed from the device. In a preferred embodiment, the sand filtration device has a minimum flow rate of 1.8 litres/ second.

One suitable suction filter is a sand spear, which is designed to achieve a strong flow rate whilst effectively filtering out sand. In a particularly preferred embodiment, the sand spear is a stainless steel Y w ire or PV C sand spear. The sand spear in use would be buried in the sand below the water line to allow it to draw water but not present a trip hazard. Preferably, the sand filter openings will be approximately 0.15mm to filter out most sand and fines. Finer particles that do get through the filter should be small enough to travel through the device and exit through the sprays (whose apertures may be designed to be larger than the sand spear filter mesh).

Alternatively, if sand filtration is not required, tor example if the device is used at a lake or pool, a different inlet filter can be used. In this embodiment, the ability to draw water while filtering sand is not needed and an open water filter can be used. It may be advantageous to keep the filter off the bottom of the water source, which may contain sand, dirt or other fines contaminants, and the use of a float can be used to suspend the suction inlet within clear water. Such a clear water inlet filter may still contain a coarse filter to prevent larger particulates from entering the device but it does not require the fine mesh needed to filter sand. Providing a coarse inlet filter will also prevent a user inadvertently getting a finger or hand stuck in the suction hose.

While it is contemplated that the inlet point of the suction hose contains a coarse or fine filter, it is also possible that one or more additional filters are also provided to further filter out unwanted particulate material. While the device is designed to work in an environment where some fines contamination is inevitable, providing further filters may reduce the amount of fines entering the device, which will further reduce the risk that a part of the device becomes blocked. At tie same time, further filters within the device will add a further element mat may need to be unclogged or replaced, and may also increase the water pressure needed to pump the water. As such, the number and mesh size of the filters will depend on the intended usage of the device.

In an embodiment, the device may further comprise a backwash system to enable the flow to be reversed to clear the inlet filters of blockage.

The device uses a pump to draw in water and force it through the spray(s). In a preferred embodiment, the pump is an impeller pump, preferably a marine grade impeller pump, which is capable of pumping seawater and abrasive fines (e.g. sand). Preferably, the pump has a self- priming suction lift of at least 5 metres. While the device preferably contains one pump, further pump(s) may be used if desired. In a preferred embodiment, the pump should be capable for changing direction (reversing the flow) to provide a positive "back-wash" to clear blockages of the filter/ s.

The pump must be sufficiently powerful to draw water, potentially through a sand spear, and create sufficient water pressure to create a usable spray pattern, possibly through a number of spray nozzles. The power requirements must take into account the location of tie device versus the water source. For example, on a beach, the device may be placed at the top of the beach, and thereby potentially 10-15 metres away from tie water and vertically displaced by 5 metres or more. In tiis circumstance, tie pump must be sufficiently powerful to draw water over this distance into and through the device.

V arious power sources are contemplated for use with tie present invention to drive tie pump. Preferably, tie power source is capable of powering the pump for continuous operation (e.g. 12 hours or more). This allows the device to be switched on at tie start of a day and then left alone tor continuous use during tie day. In a preferred embodiment tie pump is fixed to an electric motor. Alternatively, tie pump may be directly fitted to a small petrol or diesel engine.

If tie pump is driven by an electric motor, tie electricity can be obtained from any suitable source. In one embodiment, the power source is an internal power source. In an alternative embodiment, the power source is an external power source, e.g. mains electricity. In a preferred embodiment, the device incorporates a self-contained electric generator. The generator is preferably capable of continuous operation (e.g. a minimum of 12 hours) and therefore preferably has a fuel capacity of 12 hours or more. Preferably the generator will comply with Australian and international emission standards. The exhaust of the generator may be modified to discharge exhaust gas at high level to facilitate dispersal of the exhaust gases. The device housing may be modified to provide vents to further facilitate dispersal. Preferably the

is arranged so that the gases are discharged at or near the top of the device to minimize discharge into the area of use by the users. The device may also contain vents close to the generator to allow a suitable in-flow of air.

In an alternative embodiment the vents are provided in the base of the unit. Mechanical (fan) ventilation can be incorporated to assist in ventilation when a generator is installed.

In an alternative embodiment, the mechanical ventilation can incorporate the generator exhaust in a dilution flue and discharge at low level under the unit.

While the generator will primarily provide power for the pump, it may also provide power for any controls that are present in the device, for example Wi-Fi or Bluetooth connectivity, computer control of the spray patterns and/ or ventilation fans.

In an alternative embodiment, the device may be powered from a mains electricity source. This is possible where such a source is located near to the device. Alternatively, the device may be powered from solar rechargeable batteries.

The device may be configured to allow a generator to be contained within the housing. In one embodiment, the device may be sold including a generator. In an alternative embodiment, the device is supplied without a generator with the user providing their own generator or mains electricity power supply.

The device is configured to grant a user access to the internal mechanics of the device. This allows access and placement of a generator as well as access to adjust or fix other components. The device may contain a (lockable) access hatch to enable access.

Alternatively, in an embodiment of the present invention the device has an internal lifting mechanism that elevates the outer skin of the unit to gain access to the pumps, generator and other mechanics. In this embodiment, the lifting device may not need a door or access panel to access the inside.

The device is designed to have a low centre of gravity and to be shaped to provide the maximum stability to the device while in use. This helps ensure the device cannot tip over during use. To provide additional stability, in embodiments of the present invention, the device may further include a stabilisation mechanism. The purpose of the mechanism is to ensure the device remains stable during use but allows the device to be moved when not in use. During use, it is possible that a number of children and/or adults will be running and playing around the device. As such, the device must be stable enough to withstand people falling into or being pushed against the device without it falling over. The stabilisation mechanism therefore reduces the likelihood that the device can tip over and/or move during use. At the same time, the stabilisation mechanism should be light enough when not in use to allow the device to be portable.

In one embodiment of the present invention, the stabilisation mechanism incorporates a ballast tank. When filled with water, the ballast tank provides a low centre of gravity, which provides stability to withstand knocks or pushes. However, when not in use, the water can drain out of the tank reducing its weight such that the device can be lifted. The use of a ballast tank has the advantage that the device is self-stabilising, using the water source itself to provide stability . The ballast tank additionally has the advantage that it provides a lower velocity water area within the device to allow sand or fines that travelled through the inlet filters to settle at the bottom of tie tank. In a preferred embodiment, the ballast tank provides the multi-function of a settlement tank, back-wash water and stabilisation mechanism. The ballast tank includes a drain valve that enables the tank to empty at the end of the use cycle, removing the settled sand and other fines if needed. The ballast tank may also provide a water source for back-washing the inlet filters. The location of the ballast tank in the device may be arranged to ensure the weight is evenly distributed within the device to maximize the stabilisation ability and minimize the risk that the device may topple in one direction.

In an alternative embodiment, or in addition to the ballast tank described above, the device may contain one or more sand-screws to provide stabilisation. The sand screws may be preferably located within the device and screwed into the sand from inside the unit. The device may contain any suitable means to provide stabilisation. This may include anchor points that facilitate connection to pre-set anchors in the location, stabilisation points that allow a user to place a spike or other device into the ground holding the device in place, or any other means to help ensure it remains stable in use, including weights such as sand bags positioned inside the device. The stabilisation means will be designed such that when in use, the device is stabilised but that the stabilisation means can be undone when not in use allowing the device to be moved. As such, even with a stabilisation mechanism, the device of the present invention differs from permanent water features that must remain in-situ.

In an alternative embodiment, or in addition to the ballast tank described above, the device may contain heavy solar chargeable batteries that assist in the stabilisation of the device.

The device of the present invention contains one or more spray(s) to spray water out from the device to create a water park play area around the device. In a preferred embodiment, the device may contain one or more spray heads and/or misting sprays. The device of the present invention may contain 1 or more, 2 or more, 3 or more, 4 or more, 5 or more, 6 or more, 7 or more, 8 or more, 9 or more, or 10 or more sprays. These sprays may be located on various locations over the device, including at the top of the device, in the middle of the device and/or near the bottom of the device. The number and location of the spray(s) will be selected to achieve the desired spray pattern and water density .

The device will contain internal piping that allows the water to travel from the pump to the spray (s). This piping may, for example, comprise a rigid pipe and/ or a flexible hose. In one embodiment, the piping comprises a spiral flexible hose to allow movement between the pump and sprays without disconnection. Where the device contains multiple sprays, the piping may connect to a manifold.

The spray(s) may be spray(s) for delivering medium to large droplets over a wide area. These are preferably high-level spray(s). In addition, or alternatively, the spray(s) may comprise misting spray(s) for delivering a mist around the housing. These are preferably low-level spray(s).

Different types of sprays, tor example different nozzles or water pressures will achieve different types of spray suitable for different spray effects. In a preferred embodiment, the device contains high volume spray heads. In a further embodiment, the device contains misting spray heads. In an especially preferred embodiment, the device contains a combination of both high volume spray heads and misting spray heads. The high volume spray head(s) may be high volume fan spray head(s). The high volume spray head(s) may be located towards the top of the device to provide a vigorous water spray in a fan form reaching out from the device in a wide spray pattern. The spray heads may be configured to provide a continuous circle of spray around the device and the size of the spray head and water pressure may be such that the device can spray water, 1, 2 or 3 metres. The device may contain 1 , 2, 3, 4, or more high volume spray heads configured to spray around the device.

In a further preferred embodiment, the device may contain lower impact misting spray (s). These may be located lower down on the body of the device to provide a softer spray closer to the device. In combination with the high volume sprays discussed above, the device may produce a combination of high impact sprays and softer mists to allow users to choose an area that they wish to play in. This combination can set up interesting effects and play zones for children.

Preferably, the spray nozzles (both high and low volume) are configured for easy replacement. The size of the spray orifice is preferably larger than the filer mesh such that any sand or other particles that get through the filter(s) will simply blow out through the nozzles and will not become trapped or blocked in the device. This will minimize the risk of blockages during use.

In an embodiment of the invention, the device may spray 0.5 litres/ second via the spray nozzles. In a further embodiment, the device may spray 1 litre/ second, 2 litres/ second, 3 litres/ second, 4 litres/ second, or more. It can be seen that the device allows for a large volume of water use but without the need for expensive water treatment since the water is drawn directly from an open water source.

In a preferred embodiment, the housing may be of a sufficient height to facilitate a pleasing water spray pattern over a wide area and/or to discourage users from being able to reach the spray outlet points. In a further embodiment, the device may be shaped to aid stabilisation and/or to discourage climbing. In a yet further embodiment, the device may be aesthetically shaped to suit the environment and/ or to provide marketing or advertising opportunities. The specific shape of the housing can be modified to suit the specific needs. While any shape is possible, certain shapes may offer advantages. For example, a housing design that increases stabilisation will be preferred over one that does not. In addition, a shape that discourages climbing, tor example by reducing or removing hand or footholds, will increase the safety of the device. As well as technical reasons, the shape of the housing may be modified for aesthetic reasons. For example, if the device is to be used by a beach, a natural shape may be selected to blend the device into the surroundings. Alternatively, the housing may be configured to allow advertising to be displayed on the outside. This may comprise flat panels enabling sponsorship or other advertising to be displayed. Finally, the housing may be designed to itself be in the shape of a well known design, for example a local landmark, a television, film or cartoon character, or the like.

In a further embodiment of the present invention, the device may contain one or more of the following further features:

an access mechanism which may be either: a lockable, shower resistant door for maintenance of working parts; or an internal lifting device that lifts the outer structure to gain access to the working parts;

a durable finish to resist physical, UV and water damage;

a generator exhaust pipe;

ventilation grills and/ or openings;

ventilation fan(s);

smooth lines to prevent people climbing on the device and/or to reduce injur}' if someone falls against it;

high enough to reduce access to the high level sprays;

handles for transporting and storage; and/or

optional wheels for mobility.

According to a preferred embodiment, the portable device comprises:

a housing;

a suction hose;

a 'zip rope' to facilitate remove of the hose when buried

a pump, to pump water from the water source via the suction hose;

a power source to operate the pump; an optional stabilisation mechanism that stabilises the device in use, but allows the device to be moved when not in use; and

one or more sprays for spraying water, including, for example: high-level fan spray (s) and/ or low-level misting spay(s).

According to a yet further embodiment, the portable device comprises:

a housing;

a suction hose to take water from a water source;

a filtration system

a pump;

a power source to operate the pump;

a ballast tank;

one or more sprays for spraying water, including, for example: high-level tan spray (s) and/ or low-level misting spay(s).

In particular, the one or more sprays for spraying water, may comprise: high-level fan spray(s) to deliver medium to large droplet sprays in large arcs a distance from the unit; and/or low-level misting spay(s) to deliver fine misting around the base of the unit to allow children to play close to the unit.

According to a yet further embodiment, several of the features may be detachable from the device and are connected to the device by the user. In this embodiment the device may comprise the following basic features with the remaining features provided separately:

a housing;

a pump;

an optional stabilisation mechanism; and

one or more sprays for spraying water.

According to a yet further embodiment, the portable device may be a standalone unit comprising:

a housing;

suction pipe, hose, zip rope and ground water spear;

filtration unit;

inbuilt pump; inbuilt power unit (generator);

a ballast and settling tank;

optional sand screws;

manifold and valves;

high level water spray (s); and

low level misting spray (s).

a housing;

suction pipe, hose, zip rope and ground water spear;

filtration unit;

inbuilt pump;

inbuilt power unit (solar rechargeable batteries);

a ballast, back-wash and settling tank;

optional sand screws;

manifold and valves;

high level water spray (s); and

low level misting spray (s).

According to a yet further embodiment, the portable device may be an electric mains connected unit comprising:

a housing;

suction pipe, hose and ground water spear;

filtration unit;

inbuilt pump;

electrical connection for mains;

an optional ballast and settling tank;

optional sand screws;

manifold and valves;

high level water spray (s); and

low level misting spray (s). According to a yet further embodiment, the portable device may be an electric (solar) mains connected unit comprising:

a housing;

suction pipe, hose, zip rope and ground water spear;

filtration unit;

inbuilt pump;

electrical connection for solar powered mains;

an optional ballast, back-wash and settling tank;

optional sand screws;

manifold and valves;

high level water spray(s); and

low level misting spray (s).

Of course, while it is preferable to utilize a local water source, it is possible to connect the device to mains water. According to a yet further embodiment, the portable device may be a water- mains connected or a water and electric mains connected unit. For example, according to a yet further embodiment, the device may comprise:

a housing;

water supply connection from mains water;

inbuilt pump;

electrical connection for mains;

a ballast tank;

optional sand screws;

manifold and valves;

high level water spray (s); and

low level misting spray (s).

The device ot the present invention can be used in a play environment to provide a sate and fun water experience for uses, particularly children, who want the fun of water without having to enter the water itself. Because the device is portable, it can be easily set up and provides an easy and inexpensive alternative to water parks with in-built water features. The device of the present invention can advantageously utilize a local water source. This provides limitless water that does not require pre-treatment. As such, it provides a sate source of water without the need for expensive infrastructure, complex water treatment programs or difficult maintenance issues. The device of the present invention is particularly suited to the beach environment. Parents may bring their children to the beach and want them to access water but not want them entering the sea itself. The present invention provides a safe alternative to the sea, giving parents comfort that their children are playing in a safe environment away from currents or waves. At the same time, the device is located on the beach so the parents do not have to take their children away from the sand. Thus, it provides a flexible system that enables beach managers to set up designated safe play areas at the location or time of need, but store the device when not in use.

The present invention therefore provides a method of providing a water based play area on land suitable for children and/ or adults comprising:

placing a portable spraying device beside a water source;

optionally further stabilising the device; and

The invention will now be described with reference to the accompanying examples. The examples are given purely by way of example only and should not be taken to limit the scope or extent of the invention. Use of the words "comprising" or "including" should not be taken as implying a limitation.

DESCRIPTION OF THE DRAWINGS

Figure 1: shows the general components of a device according to an aspect of the present invention,

Figure 2: is a side view of an embodiment of the device according to an aspect of the present invention.

Figure 3: is a top view of an embodiment of the device according to an aspect of the present invention.

Figure 4: is a flow diagram of the device, containing a remote controlling unit.

Figure 5: is a flow diagram of the device according to a further embodiment containing a secondary filter Figure 5a: is a flow diagram of the device according to further embodiment with alternative flow control of the flexible hoses

Figure 5b: is a flow diagram of the device according to further embodiment with alternative flexible deliver)? hose to the manifold

Figure 6: shows an example sand spear for use in a beach environment.

Figure 7: shows an example inlet filter for use where sand ingestion is not an issue.

Figure 8: shows an inlet filter in water, including a floating inlet.

Figure 9: shows a diagram of a ballast tank.

Figure 10a: shows an example of a manifold and spray system.

Figure 10b: shows an example of the manifold and spray system including misting sprays, Figure 10c: shows an example of the manifold and flexible delivery hose

Figure 11: show an example of a misting spray nozzle,

Figure 12: show an example of a high volume fan spray head.

Figures 13-17 show diagrams of devices according to various embodiments of the present invention.

Figures 18-19: show diagrams of an internal telescopic lifting device according to various embodiments of the present invention

DETAILED DESCRIPTION

A portable spray device according to the present invention is shown in Figure 1. The device is depicted beside an open water source. A primary filter 1 on the suction hose 2 is placed within the water.

In addition to the suction hose, a small diameter rope (2a: Zip Rope) is attached to the suction filter and to the device and laid with the suction hose and buried. When retrieving the hose and filter, the rope is pulled up, un-zipping and breaking the surface tension of the sand, allowing easy pulling out of the hose and filter.

The primary filter is shown as a sand spear to allow use in a beach/ sand environment. Different types of suction filters will be used depending on the water source. The suction hose is connected to the device via the hose coupling 3. The device of Figure 1 may also contain a secondary filter but this may not be required depending on the usage of the device. The inlet is connected to a pump 4. The pump is a self-priming flexible impeller pump with an electric motor. The suction lift of the pump will depend on the usage of the device but it is expected that a lift of at least 5 metres is preferable. The pump is preferably a flexible impeller marine grade pump capable of pumping seawater and abrasive products (sand). It is preferable that the pump can be reversed without damage to the impeller to allow 'back-washing of the filter and hose.

The pump 4 is powered by a generator 5. The generator is shown as a self-contained electric generator. The generator is capable of continuous operation (e.g. for a minimum of 12 hours with a fuel capacity of 12 hours). The generator supplies power to the electric motor on the pump. It can also power any electronic controls, for example Wi-Fi, Bluetooth or any ventilation fans 24 within the housing to assist discharge the fume and/ or heat build up from the generator. In alternative versions (not shown) the generator and electric motor could be replaced by a small petrol/ diesel engine connected directly to the pump.

The system also can allow tor back washing and may contain a backwash bypass 6.

The device of Figure 1 includes an optional stabilisation mechanism by way of ballast tank 7. The ballast tank provides additional weight into the device when filled with water to increase stability as well as providing a low velocity water area that could allow fines to settle out of the water flow. The ballast tank contains a downward drain valve 7a and the tank can be emptied at the end of a cycle. An alternative back wash can be carried out by reversing the pump. The pump is connected to the delivery manifold 8, which carries the water from the pump to the high-level fan sprays 9 and the low level misting sprays 10. The deliver)- manifold 8 is a combination of rigid pipe and flexible hose 31. Using a rigid pipe section in the manifold allows for a balanced water flow to multiple sprays. Using a flexible hose to connect to the pump allows easy removal of the pump. Also, if the device allows for movement between the pump and sprays (for example if the housing can be raised) then a spiral hose 31 may advantageously be used because it allows for movement without disconnection.

The spray heads protrude through the housing 11 to allow⁷ water to spray out of the device. The portable spra device can be seen in use in Figure 2, which demonstrates the high-level fan sprays and the lower level misting sprays. The high level sprays are high volume and spray water over a wider area. In contrast, the lower level misting sprays provide a lower impact fine water mist or spray. The placing of the spray heads can be arranged to produce a pleasing water effect.

Figure 3 shows a plan view of the portable spray device in use and shows a substantially 360- degree spray effect. This allows the most users to interact with the device.

A flow diagram of the components of the portable spray device is shown in Figure 4. The suction inlet filter 1 is connected via suction hose 2 to the pump 4. The pump is controlled via a switch 12. The water exits the pump under pressure and flows into the ballast tank 7 and flows out from the ballast tank through the delivery manifold 8 and out of the misting sprays 10 and full flow sprays 9. The ballast tank also has a drain 7a that allows water and any accumulated fines to be discharged from the device at the end of its usage period. The rate of flow of the water is controlled via the optional flow control valve 13 that enables the user to adjust the flow rates of the device to achieve the desired level of water spray.

Alternative devices are shown in Figures 5, 5a and 5b. Many of the elements are the same as with the previous example but in this instance the device is controlled via a remote controller 14. This may be controlled via Wi-Fi, Bluetooth or any other suitable remote control system. The device also has an additional filter 15 before the misting sprays. This is used because the aperture of the misting sprays is much narrower than the tull flow sprays and therefore the misting sprays are more likely to become clogged. Using an additional fine filter will help to remove this potential issue.

An example of a sand spear 1 is shown in Figure 6. The sand spear is a stainless steel Y w ire or PVC tubular filter that filters out sand and fines to less than 1mm in size. The V wire design allows the filter to be semi self-cleaning. Where the suction inlet is not likely to be clogged by sand (for example in a lake, pool or river environment), a sand spear is not necessary. Figure 7 shows an alternative inlet filter that can be used in these situations. The mesh 16 is wider than with a sand spear. A coarse filter is used to prevent large debris like twigs or leaves from entering the suction hose as well as preventing users from putting their hands into the suction hose and getting them stuck. Figure 8a shows an example of the inlet filter of figure 7 in water. Figure 8b shows a float 17 attached to the inlet filter 16 to ensure that the inlet does not sink to the bottom. This will help avoid sucking up debris and other sediment by ensuring the inlet remains in clear water. The ballast tank is shown in figure 9. The ballast tank 7 provides a low centre of gravity that helps to stabilise the unit. The tank also reduces the velocity of the water flow, allowing settlement of sand and 'fines' out of the water supply. It can be seen that the tank contains an inlet 7b from the pump and an outlet 7c to the sprays. These are located at the top of the tank. This helps to encourage any sediment that has passed through the primary filter to settle at the bottom of the tank and not get sucked up the outlet towards the sprays. The ballast tank contains a downward drain valve 7a and the tank can be emptied at the end of a cycle. The weight difference between the ballast tank when empty versus when full has a significant impact on the overall weight of the device thereby helping ensure the device is stable when in use but light enough to carry when not.

Figure 10a shows an example of the manifold and spray system. The manifold 8 is made up of a number of fittings and pipes to deliver water under pressure from the pump or via the optional ballast tank to the various spray heads on the unit. The manifold in Figure 10a is shown connected to high volume fan sprays 9. The manifold in Figure 10b is shown connected to both low level misting sprays 10 and high volume fan sprays 9. The optional flow control valve 13 is shown between the lower misting sprays and the upper fan spray manifold. Figure 10c shows the optional flexible hose connection to the manifold

Figure 11 shows a low level misting spray in more detail. The low height misting spray nozzles provide low volume misting at the lower zone around the unit providing a softer spray for children. The nozzles are capable of passing 2mm sand or silt particles. The misting spray shown is a hollow cone hydraulic atomizer and is an industry standard mister made of brass (or optionally stainless steel). The spray nozzles are installed for easy replacement if they become blocked.

Figure 12 shows a high-level high volume fan spray head in more detail. The high-level fan sprays provide a vigorous water spray in fan form reaching approximately 3 metre away from the unit in a continuous circle around the unit. These provide high volume wetting for uses away from the quieter/ softer misting spray. The fan nozzle orifice size is between 5 and 7mm and the _{j )} sprays are industrial high quality UV protected polyurethane. As with the misting spray, the fan nozzles are designed to be easily replaced.

Some additional features will now be described in Figure 1. The generator 5 is shown with a connector to the controller 14 to control the generator and pump from the outside of the housing. Controller 14 may optionally be remote enabled via Wi-Fi, Bluetooth or the like. An exhaust pipe 8 is shown leading from the generator to allow exhaust fumes to escape from the top of the device. In addition, ventilation grills/ openings 1 are provided. The delivery pipe and manifold 8 leads from the ballast tank to provide high-pressure water to both the misting sprays 10 and fan sprays 9. Optional in-built wheels 20 may be provided with the device to allow it to be moved easily into position.

Figure 13 includes the same features as Figure 1 and the same numbering has been used. Figure 13 also includes a secondary filter and backwash system 6. Where very fine sand exists, a secondary filter 21 may be installed. This can be an auto backwash filter to remove the accumulated fines via the backwash controller 22.

Optional ventilation may be provided through the base of the unit 25. Figure 14 is a spray unit without ballast tank or secondary filter and backwash.

Figure 15 is a spray unit with no generator and a mains electrical connection point.

Figure 16 is a spray unit containing sand screws 23 instead of a ballast tank to provide stabilisation. The sand screws are screwed into the sand from inside the unit. Two sand screws are depicted in the figure but more or less could be used depending on need.

Figure 17 is a spray unit with ventilation fan 24 and raised base to provide all ventilation from under the unit 25. Optional pipe work using hose connections 26 instead of valves to be used for varying flows to spray heads by clamping of hose to restrict flow.

Figure 18 is a spray unit with internal telescopic lifting device to raise the outer shell to provide access to internal elements of the device. The present invention contemplates any lifting mechanism that enables lifting the outer shell of the device. Once such lifting mechanism is comprised of two fabricated square section aluminium sections (27 and 28). The internal section 27 slides within the outer section 28. The outer section is fixed to the base of the unit 29, the inner section fixed at the top to the outer shell of the spraying device. A roped pulley device 30 is fitted to the inner and outer sections of the lifting device. The end ot the rope passes through the base of the whole spray device. When this rope is pulled the inner section is lifted vertically within the outer section, here by raising the outer shell of the spray unit to allow access to the pump and internal working of the spray device. The internal section 27 which engages with the outer shell to lift it vertically can be removed to gain full access to the internal mechanics of the device. When a telescopic lifting device is incorporated into the device a spiral hose 31 connecting the pump to the delivery manifold or sprays is advantageously used to allow vertical movement without disconnection of the pump. The spiral hose 31 can be seen in Figure 18.

Figure 19 is the internal telescopic lifting device at a 2 to 1 lifting ratio.

Figure 20 is the internal telescopic lifting device at a 4 to 1 lifting ratio.

In operation, the portable spray device of the present invention does not initially contain any water and is therefore relatively light allowing it to be moved. The device can be placed in a suitable position near to a water source. The device may contain wheels and/or handles to enable it to be manoeuvred.

Once in position near the water source, the suction hose and inlet filter would be extended into the water supply. If located on a beach or riverbank, the sand filter and hose may be buried in the sand layer. A Zip Rope is preferred to be laid with the hose to allow easy removal of the hose. The sand filter will be buried below- the water level The Zip Rope is fixed to the end of the sand filter to allow- easy removal of the filter by breaking (un-zipping) the sand from above the hose and filter. The sand filter, hose and zip rope can be buried to reduce trip hazards. Alternatively, if the spray device is located near a 'clean' water source (harbour, swimming pool, lake or similar) the primary filter can be lowered directly into the water supply. A float may be attached to the filter to raise it above the bottom of the water source to reduce blockages and keep the filter in clear water.

Once the inlet filter is in place, the device can be opened via the access door or internal lifting device to start the generator. The generated power can operate any optional ventilation f an(s) and provide power for the pump electric motor. The generator may have an external shut off device and may also have tilt shutoff in the event that, despite stabilisation, the device is tilted or pushed over. If the device uses sand screws that are accessible from the inside of the device, they can be screwed into place at this stage.

The pump may be started via an external on/ off switch controlling the electrical power from the generator (or main power as appropriate). The start can be delayed to allow the operator to move away from the unit. Alternatively a Wi-Fi or Bluetooth connection via, for example, a smart phone can turn the pump on and off.

With a self -priming pump, the water will flow to the device. If a ballast tank is used, the water will flow into the ballast tank to fill the tank. The full tank provides additional stability to the unit. An optional secondary filter may be installed prior to the pump and (optional) ballast tank if required to remove silt and mud, depending on water quality. The location of the filters may be optimized depending on the device configuration and quality of water.

The water will then travel up the supply manifold and discharge from the external sprays and misting nozzles. The device will then continuously spray water from the water source until the device is switched off.

To reverse the process, the pump is stopped and the generator switched off. If a ballast tank is used, it is allowed to drain. The end of the zip rope is then located and pulled up thereby 'unzipping the sand along the length of the hose and making it easier to remove the hose since the sand has been de-compacted. The hose and inlet filter are then collected. The device can then be moved for storage or other purposes.

Claims

1. A portable play device for spraying water from an open water source onto user(s) comprising:

a housing;

a pump to draw water from the water source; and

one or more spray(s) to spray the water from the device onto the user(s).

2. A portable play device for spraying water from a water source onto user(s) comprising:

a housing;

a pump to draw water from the water source;

3. The device according to claim 1 or claim 2 wherein the water source is sea, harbour, dam, lake, river or swimming pool.

4. The device according to any preceding claim, comprising a water suction member to extract water from the water source, including a hose or pipe.

5. The device according to claim 4 wherein the water suction member inlet:

is configured for use in a beach environment and comprises a suction sand filter, preferably a sand spear, more preferably a stainless steel V-wire sand spear; is configured for a clear water environment including a harbour, dam, river, lake or pool and is optionally suspended from a float; or

is configured to be connected to a mains water supply.

6. The device according to claim 4 wherein the water suction member comprises a zip-rope configured to lie alongside the water suction member.

7. The device according to any preceding claim, comprising one or more filters to filter the water from the water source.

8. The device according to any preceding claim, wherein the pump is an impeller pump, preferably with a self-priming suction and/ or a suction lift of at least 5 metres.

9. The device according to any preceding claim, comprising an internal power source to operate the pump(s).

10. The device according to any preceding claim, comprising a motor to drive the pump, preferably an electric motor.

11. The device according to claim 10, comprising a generator or solar rechargeable batteries and inverter to power the electric motor.

12. The device according to claim 11, wherein the device is adapted to discharge the generator exhaust gases.

13. The device according to any preceding claim, wherein the housing is adapted to discourage climbing.

14. The device according to any preceding claim, further comprising a stabilisation mechanism that stabilises the device in use, but allows the device to be moved when not in use.

15. The device according to claim 2 or claim 14, wherein water provides stabilisation for the device.

16. The device according to claim 15, wherein the stabilisation mechanism is a ballast tank which empties when the device is not in use such that the device can be moved but, when in use, the ballast tank fills with water to stabilises the device.

17. The device according to claim 16, wherein the ballast tank reduces the velocity of water flow- allowing settlement ol sand and/or 'fines' out of the water supply.

18. The device according to any preceding claim, wherein the stabilisation mechanism is one or more sand screws for use on sand; or wherein the stabilisation mechanism is designed lor use on harder ground.

19. The device according to any preceding claim, comprising 1 or more, 2 or more, 3 or more, 4 or more, 5 or more, 6 or more, 7 or more, 8 or more, 9 or more, or 10 or more sprays.

20. The device according to any preceding claim, wherein the spray(s) are high-level spray (s) and/ or low level spray (s).

21. The device according to claim 20, wherein the high-level spray (s) are adapted to deliver medium to large water droplets over a wide area and/ or the low lever spray(s) are low-level misting spray(s) for producing a mist.

22. The device according to any preceding claim, wherein the housing is configured to be vertically liftable to enable access to the internal workings of the device.

23. The device according to any preceding claim, comprising one or more of the following additional features:

a lockable, shower resistant door for maintenance of working parts;

a durable finish to resist physical, UV and water damage;

a generator exhaust pipe;

ventilation grills and/ or openings;

ventilation fan(s);

smooth lines to prevent people climbing on the device and/or to reduce injury if someone talis against it;

high enough to reduce access to the high level sprays;

handles tor transporting and storage; and/or

optional wheels for mobility.

24. A portable play device for spraying water from a water source onto a user comprising:

a housing;

a suction hose;

a pump to draw water from the water source via the suction hose; a power source to operate the pump;

a optional stabilisation mechanism that stabilises the device in use, but allows the device to be moved when not in use; and

one or more sprays for spraying water, including: high-level fan spray(s) to deliver medium to large droplet sprays in large arcs a distance from the unit; and/or low-level misting spay(s) to deliver fine misting around the base of the unit to allow user(s) to play close to the unit.

25. The device according to any preceding claim, wherein the water does not require pre- treatment, including chemical and/ or UV treatment prior to use.

26. The device according to any preceding claim adapted for use at a beach, river, harbour, or swimming pool.

27. A method of providing a water based play area on land suitable tor children and/or adults comprising:

placing a portable spraying device according to any preceding claim beside an open water source;

optionally further stabilising the device; and

pumping water from the open water source through the device and out of the spray(s) to create a spray and/ or mist.