TELESCOPIC FOUNTAIN NOZZLE WITH DISCREET EXTENSION AND WATER ACTIVATION

Description

BACKGROUND

[0001] The present disclosure relates generally to the field of amusement attractions. More specifically, embodiments of the present disclosure relate to a water attraction with a telescopic fountain nozzle.

[0002] This section is intended to introduce the reader to various aspects of art that may be related to various aspects of the present disclosure, which are described below. This discussion is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present disclosure. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art.

[0003] Amusement parks contain a variety of attractions providing unique experiences to each park guest. Among these attractions are water attractions. These water attractions may utilize fountains, for example, during a show. However, typically, these fountains either remain visible when not in use, or require large systems to raise and lower them relative to the water's surface, and thus, a problem with a single platform of this system can keep the fountains associated with that platform from being utilized during the show. With the increasing sophistication and complexity of modern attractions, and the corresponding increase in expectations among amusement park and / or theme park guests, improved and more creative attractions are needed, including attractions that provide a unique guest experience. With a more sophisticated and demanding audience, it is increasingly important to elegantly conceal technical equipment, so one does not take away from the performance, as well as remove risk of a large-scale technical failure, such as the favor of all of the fountains associated with a platform, in favor of smaller risks that are easier to overcome during the live performance.

[0004] JPH01207156A discloses a fountain device having a model flying object which resembles a launching fuel injection. This resemblance is accomplished by elevating a model flying body holding means to raise a model flying body with the visual effect of launching from the water surface level of a fountain and gushing water from downward facing spout nozzles.SUMMARY

[0005] In one embodiment, a modular fountain system is provided. The modular fountain system includes multiple fountain nozzles. Each fountain nozzle of the multiple fountain nozzles includes a body configured to telescope during extension and retraction, and a nozzle outlet coupled to an end of the body. The fountain system also includes an extension system configured to actuate the extension and retraction of the body. The fountain system also includes an actuation system configured to activate discharge of a liquid from the nozzle outlet. The extension system and the actuation system are discrete systems. The modular fountain system also includes a control system coupled to the multiple fountain nozzles. The control system is configured to independently control extension and retraction of each fountain nozzle of the multiple fountain nozzles, and to keep the body of at least one fountain nozzle of the multiple fountain nozzles extended without a liquid being discharged from the nozzle outlet of the at least one fountain nozzle. The extension system includes a conduit that extends through the body of each respective fountain nozzle of the plurality of fountain nozzles. A first valve is disposed along the conduit within a segment at a bottom portion of the body and a second valve is disposed along the conduit adjacent segments near a top portion of the body. A pump is coupled to a fluid source and configured to provide fluid to the conduit, wherein the control system is configured to open the first valve, close the second valve and cause the pump to pump fluid into the conduit to extend the body of the respective fountain nozzle.

[0006] In another embodiment, a method for utilizing a modular fountain system is provided. The method includes extending, via an extension system, a portion of a telescopic body of one or more of the plurality of fountain nozzles out of a liquid. A nozzle outlet is coupled to an end of the portion of the telescopic body of one or more of the plurality of fountain nozzles extending out of the liquid. The method also includes activating, via an actuation system, discharge of the liquid from the nozzle outlet whilst keeping the body of at least one fountain nozzles extended without liquid being discharged from the nozzle outlet of the at least one fountain nozzle. The extension system and the actuation system function separately from each other. The method further comprises, via a control system of the modular fountain system: opening a first valve disposed along a conduit within a segment at a bottom portion of the body of the respective fountain nozzle; closing a second valve disposed along the respective conduit adjacent segments near a top portion of the body; and providing fluid to the respective conduit using a pump coupled to a fluid source, to extend the body of the respective fountain nozzle.BRIEF DESCRIPTION OF THE DRAWINGS

[0007] These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein: FIG. 1 is a schematic of an embodiment of a fountain system of a water attraction, in accordance with an aspect of the present disclosure; FIG. 2 illustrates an embodiment of a telescopic fountain nozzle body of the fountain system of FIG. 1, in accordance with an aspect of the present disclosure; FIG. 3 illustrates an embodiment of a modular fountain system of a water attraction (e.g., having multiple telescopic fountain nozzles), in accordance with an aspect of the present disclosure; FIG. 4 illustrates an embodiment of an extension system (e.g., electrically actuated piston) interfacing with a portion of a telescopic fountain nozzle, which is not covered by the claimed subject-matter; FIG. 5 illustrates an embodiment of an extension system (e.g., hydraulically actuated piston) interfacing with a portion of a telescopic fountain nozzle, which is not covered by the claimed subject-matter; FIG. 6 illustrates an embodiment of a fountain system including an extension system and actuation system interfacing with a telescopic fountain nozzle, covered by the claimed subject-matter; FIG. 7 illustrates an embodiment of an actuation system interfacing with a portion of a telescopic fountain nozzle, which is not covered by the claimed subject-matter; FIG. 8 illustrates an embodiment of an actuation system interfacing with a portion of a telescopic fountain nozzle (e.g., having water pathways in a wall of the telescopic fountain nozzle), which is not covered by the claimed subject-matter; and FIG. 9 is a flow chart of an embodiment of a method for utilizing a fountain system of a water attraction, covered by the claimed subject-matter; DETAILED DESCRIPTION

[0008] One or more specific embodiments of the present disclosure will be described below. In an effort to provide a concise description of these embodiments, all features of an actual implementation may not be described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

[0009] Amusement parks feature a wide variety of entertainment, such as amusement park rides, performance shows, and games. Embodiments of the present disclosure are directed to a fountain system for a water attraction (e.g., show) that may be utilized at an amusement park or other entertainment venue. A fountain system for a water attraction includes a plurality of fountain nozzles (e.g., telescopic fountain). The fountain nozzles include a body that telescopes during extension and retraction. During retraction, the fountain nozzles may be completely submersed in the water. During extension a portion of the body may extend out of water. A nozzle outlet coupled to an end of the body (outside of the water) discharges water (or other liquid) provided to the fountain nozzle. The extension and retraction occurs via an extension system. The extension system extends the body (e.g. to full length) and maintains the extension without water being discharged from the nozzle outlet. Activation of the discharge of water from the nozzle outlet occurs via an actuation system. The actuation system is separate or discrete from the extension system. In certain embodiments, the actuation system may include a pump (e.g., for hydraulic actuation). In certain embodiments, that actuation system may include an air compressor / pump may be utilized (e.g., for pneumatic actuation). In certain embodiments, an electric feed for an electric actuator may be utilized for actuation. A control system controls both the extension and actuation systems. The fountain system is a modular fountain system that includes multiple fountain nozzles. The control system, via the extension and actuation systems, independently or separately controls the extension and retraction and discharge of water of each fountain nozzle. Thus, if one or more of the fountain nozzles does not function, the remaining fountain nozzles may be utilized. In addition, utilizing distinct systems to control the extension and retraction and discharge of water expands the functionality of the telescopic fountain nozzles during the water attraction. This avoids having to utilize a large platform that supports dozens or hundreds of nozzles.

[0010] Turning to the figures, FIG. 1 illustrates an embodiment of a fountain system 10 of a water attraction (e.g., show). As depicted, the fountain system 10 includes a telescopic fountain or fountain nozzle 12 disposed within a body of water 14. The body of water 14 may be in a pond, lake, pool, tank, or building structure (e.g., located at an amusement park). The fountain nozzle 12 includes a body 16 (e.g., telescopic body) that extends in a first direction 18 (e.g., vertical direction) and retracts in a second direction 20 (e.g., opposite vertical direction). The body 16 telescopes when extending or retracting. In particular, the body 16 includes multiple segments 22 arranged in a concentric arrangement that extend from each other when extended and retract within each other when retracted (e.g., in a nested arrangement). As depicted, each subsequent segment 22 extending from the body 16 in direction 18 is narrower than the previous segments 22 below it. Thus, the body 16 narrows from a bottom portion 24 to a top portion 26 of the body 16. In certain embodiments, the body 16 widens from the bottom portion 24 to the top portion 26 (see FIG. 2). As depicted, the body 16 of the fountain nozzle 12 is fully extended so that a portion (e.g., top portion 26) is located out of the water 14 and a portion (e.g., bottom portion 24) is located within the water 14. In certain embodiments, an entirety of the body 16 may extend outside the water 14. The fountain nozzle 12 includes a nozzle outlet 28 located at an end 30 of the top portion 26 of the body 16 where water is discharged (e.g., indicated by reference numeral 31). In certain embodiments, nozzle outlets 28 may be disposed along the side of the body 16 for discharge of water from the fountain nozzle 12.

[0011] The fountain system 10 includes an extension system 32 that extends and retracts the body 16 of the fountain nozzle 12. As described in greater detail below, the extension system 32 includes a pump to extend and retract the body 16. The extension system 32 may fully extend, partially extend, fully retract, and / or partially retract the fountain nozzle 12. The fountain system 10 also includes an actuation system 34 that activates or causes the water to flow through the body 16 of the fountain nozzle 12 to be discharged via the nozzle outlet 28. As described in greater detail below, the actuation system 34 may include a pump, valves, compressor, or other mechanisms to control the discharge of water from the fountain nozzle 12. Both the extension system 32 and the actuation system 34 are coupled to a control system 36 (e.g., controller). The control system 36 controls the extension system 32 and the actuation system 34 to control the extension and retraction of the fountain nozzle 12 and the discharge of water from the fountain nozzle 12.

[0012] The extension system 32 and the actuation system 34 are two discrete or separate systems that are separately or independently controlled by the control system 36. This enables the body 16 of the fountain nozzle 12 to be extended without the discharge of water or other liquid from the nozzle 12.

[0013] The control system 36 includes a memory 38 and a processor 40 configured to execute instructions stored on the memory 38. The processor 40 may include multiple processors, one or more "general-purpose" microprocessors, one or more special-purpose microprocessors, and / or one or more application specific integrated circuits (ASICS), or some combination thereof. For example, the processor 40 may include one or more reduced instruction set (RISC) processor, advanced RISC machine (ARM) processor, performance optimization with enhanced RISC (PowerPC) processor, field-programmable gate array (FPGA) integrated circuit, graphics processing unit (GPU), or any other suitable processing device.

[0014] The memory device 38 may include a volatile memory, such as random access memory (RAM), nonvolatile memory, such as read-only memory (ROM), flash memory, or any combination thereof. The memory device 38 may store a variety of information that may be used for various purposes. For example, the memory device 38 may store processor-executable instructions (e.g., firmware or software) for the processor 40 to execute, such as instructions for controlling the extension and retraction of the fountain nozzle 12, discharge of water or other liquid from the nozzle 12, flow rate of water into the nozzle, or other instructions related to the fountain system 10. The storage device(s) (e.g., nonvolatile storage) may include ROM, flash memory, a hard drive, or any other suitable optical, magnetic, or solid-state storage medium, or a combination thereof.

[0015] FIG. 3 illustrates an embodiment of a modular fountain system 42 of a water attraction (e.g., having multiple telescopic fountain nozzles 12). As depicted in FIG. 3, multiple telescopic fountain nozzles 12 as described in FIG. 1 are coupled to the extension system 32, actuation system 34, and the control system 36 to form the modular fountain system 42. As depicted, the fountain nozzles 12 are disposed within the body of water 14. In certain embodiments, the fountain nozzles 12 may be disposed on a common platform. The control system 36, via the extension system 32, is configured to independently or separately control the extension and retraction of each fountain nozzle 12 of the modular fountain system 42. In other words, the control system 36 may cause one or more fountain nozzles 12 to extend, while some fountain nozzles 12 remain retracted. Also, the control system 36 may cause one or more fountain nozzles 12 to retract, while some fountain nozzles 12 remain extended. As depicted, the modular fountain system 42 includes four fountain nozzles 44, 46, 48, and 50. The number of fountain nozzles 12 may vary (e.g., 1, 2, 3, 4 5, 6, 7, 8, 9, 10, or any other number of fountain nozzles 12). As depicted, fountain nozzles 44, 48, and 50 are extended, while fountain nozzle 46 is retracted.

[0016] The control system 36, via the actuation system 34, is configured to independently or separately control the discharge of water or other liquid from each fountain nozzle 12. In other words, the control system 36 may cause one or more fountain nozzles 12 to discharge water, while some fountain nozzles 12 do not discharge water. As depicted, fountain nozzles 44 and 48 are discharging water as indicated by reference numeral 52. As mentioned above having discrete extension 32 and actuation systems 34 enables the fountain nozzle 12 to be extended without water being discharged from the fountain nozzle 12 (as depicted by the fountain nozzle 50).

[0017] FIG. 4 illustrates an embodiment of the extension system 32 (e.g., electrically actuated piston 54), which is not covered by the claimed subject-matter, interfacing with a portion of the telescopic fountain nozzle 12. The extension system 32 includes a piston 54 disposed within the body 16 of the fountain nozzle 12. The piston 54 includes a piston head 56 that interfaces with the top segment 58 of the body 16. The nozzle outlet (e.g., nozzle) is coupled to the piston head 56. In certain embodiments, the piston head 56 may interface with a different segment 22 of the body 16 and / or with more than one segment 22 of the body 16. As depicted, the piston 54 is coupled to an electric power source 60 that causes the piston head 56 to extend or retract from the piston 54. The electric power source 60 may be controlled by the control system 36. When the piston head 56 extends from the piston 54 in direction 18, it pushes on the top segment 58 of the body 16, causing the body 16 to extend. As depicted, each body segment 22 includes a lip or flange 62 that interfaces with the lip or flange 62 of the adjacent body segment 22 below it. As an upper force is exerted on the top segment 58, the top segment's flange 62 exerts an upper force on the flange 62 of the adjacent segment 22 causing it to lift upward, while a similar interaction occurs along the flange interfaces of the other segments 22, thus, causing the telescoping extension of the body 16. When the piston head 56 retracts toward the piston 54 in direction 20, the segments 22 of the body 16 retract or nest within each other.

[0018] In certain embodiments, which are not covered by the claimed subject-matter, as an alternative to a piston, the extension system 32 may include a threaded insert extending out of a tapped segment (e.g., similar to a hollowed-out version of an electric lead screw). The tapped segment may be similar to the piston head extend and / or retract the segments 22 of the body 16.

[0019] FIG. 5 illustrates an embodiment of the extension system 32 (e.g., hydraulically actuated piston or pneumatically actuated piston 54), which is not covered by the claimed subject-matter, interfacing with a portion of the telescopic fountain nozzle 12. The piston 54 is as described in FIG. 4 except the piston 54 is hydraulically or pneumatically actuated. Thus, movement of the piston head 56 is actuated via a fluid (e.g., air, water, etc.) within the piston 54.

[0020] FIG. 6 illustrates an embodiment of the fountain system 10 that includes the extension system 32 and actuation system 34 interfacing with the telescopic fountain nozzle 12. The telescopic fountain nozzle 12 is as described above. As depicted, the extension system 32 includes a conduit 64 that extends through the body 16 of the telescopic nozzle 12. One or more valves may be disposed along the conduit 64 at different locations. As depicted, a valve 66 is disposed along the conduit 64 within the segment 22 at the bottom portion 24 of the body 16. In addition, a valve 68 is disposed along the conduit 64 adjacent the segments 22 near the top portion 26 of the body 16. The extension system 32 also includes a pump 70 coupled to a fluid source 72 (e.g., water, air in a pneumatic system, etc.). The pump 70 is coupled to conduit 64 via conduit 74 and is configured to provide the fluid (e.g., water, air, etc.) to the conduit 64. In certain embodiments, conduit 64 may be coupled to the nozzle outlet 28. Providing the fluid to the conduit 64 extends the body 16 of the telescopic nozzle 12. The control system 36 is coupled to and controls the pump 70 and the valves 66, 68. The control system 36 may open valve 66 and close valve 68 and cause the pump 70 to pump fluid into the conduit 64 to extend the body 16. Upon the desired extension of the body 16, the control system 36 may close the valve 66 to maintain the extension of the body 16, while ceasing flow of fluid from the pump 70. In certain embodiments, the extension of the body 16 may be maintained without activating the discharge of water from the nozzle outlet 28. In certain embodiments, an outlet may be coupled to conduit 64 and / or conduit 74 to release the fluid from within conduit 64 (e.g., when valve 66 is opened) to enable the retraction of the body 16.

[0021] A separate activation system 34 is also coupled to the control system 36 for activating discharge of water from the nozzle outlet 28. As depicted, the activation system 34 includes a pump 76 coupled to a water supply 78 (e.g., the body of water 14). The pump 76 is coupled to a conduit 80. As depicted, conduit 80 is coupled to a conduit 82 (e.g., separate from conduit 64) disposed within the body 16. Conduit 82 is coupled to the nozzle outlet 28. In certain embodiments, conduit 82 may be disposed within one or more walls of the body 16. In certain embodiments, conduit 82 may be disposed within a space (e.g., cavity) between the walls of the body 16. Upon a signal from the control system 36, the pump 76 provides water to the conduit 82 for discharge from the nozzle outlet 28. In certain embodiments, conduit 80 or 82 may be coupled (e.g., fluidly coupled) to the conduit 64 to provide water for discharge from the nozzle outlet 28 when valve 68 is open. In certain embodiments, the system 10 may utilize a single pump for both extension and activation of water discharge.

[0022] FIG. 7 illustrates an embodiment of the actuation system 34, which is not covered by the claimed subject-matter, interfacing with a portion of the telescopic fountain nozzle 12. The actuation system 34 includes the pump 76, water supply 78, and the conduit 80 as described above. The fountain nozzle 12 includes the piston 54 as described above (e.g., electrically or hydraulically actuated) in an extended position extending the body 16. Upon the pump 76 providing water to the nozzle outlet 28, via the conduit 80 (e.g., flexible hose or rigid fitting coupled to nozzle outlet 28), water is discharged from the fountain nozzle 12 (as indicated by reference numeral 90).

[0023] FIG. 8 illustrates an embodiment of the actuation system 34, which is not covered by the claimed subject-matter, interfacing with the portion of the telescopic fountain nozzle 12 (e.g., having water pathways in walls of telescopic fountain nozzle 12). The actuation system 34 includes the pump 76, water supply 78, and the conduit 80 as described above. The fountain nozzle 12 includes the piston head 56 as described above (e.g., electrically or hydraulically actuated) in an extended position extending the body 16. Passages 92 extend through a wall 93 of the top segment 22 of the body 16. Upon the pump 76 providing water to the fountain nozzle 12, via the conduit 80, the water passes through the passages 92 (as indicated by reference numeral 94) and through passages 88 (as indicated by reference numeral 96) that form the nozzle outlet 28 for discharge of water from the fountain nozzle 12. As depicted, the passages 92 are fluidly coupled to an interior (e.g. cavity) within the body 16. In certain embodiments, the passages 92 may be only located within one or more walls 93 of one or more segments 22 of the body 16 with the conduit 80 directly coupled to the passages 92.

[0024] FIG. 9 is a flow chart of an embodiment of a method 98 for utilizing the fountain system 10 of a water attraction. One or more of the steps of the method 98 may be performed by the control system 36 (e.g., via the extension system 32 and the actuation system 34). One or more of the steps of the method 98 may be performed simultaneously and / or in a different order from that depicted. In addition, the method 98 may be performed utilizing a single fountain nozzle 12 or one or more fountain nozzles of a modular fountain system. The method 98 includes extending, via the extension system 32, a portion of the telescopic fountain nozzle 12 out of the water (block 100). In certain embodiments, the method 98 includes keeping the telescopic fountain nozzle 12 extended without discharging water from the nozzle outlet 28 (block 102). The method 98 also includes activating, via the actuation system 34, the discharge of water from the nozzle outlet 28. In certain embodiments, the extension system 32 and the actuation system 34 are discrete systems that function separately from each other as described above.

[0025] While only certain features of the disclosure have been illustrated and described herein, many modifications and changes will occur to those skilled in the art. It is, therefore, to be understood that the scope of protection is defined by the appended claims. The techniques presented and claimed herein are referenced and applied to material objects and concrete examples of a practical nature that demonstrably improve the present technical field and, as such, are not abstract, intangible or purely theoretical.

Claims

1. A modular fountain system (42), comprising: a plurality of fountain nozzles (12), wherein each fountain nozzle of the plurality of fountain nozzles (12) comprises: a body (16) configured to telescope during extension and retraction; and a nozzle outlet (28) coupled to an end of the body (16); a control system (36) coupled to the plurality of fountain nozzles (12), wherein the control system (36) is configured to independently control extension and retraction of each fountain nozzle of the plurality of fountain nozzles (12) and to keep the body (16) of at least one fountain nozzle of the plurality of fountain nozzles (12) extended without a liquid being discharged from the nozzle outlet (28) of the at least one fountain nozzle (12); an extension system (32) configured to actuate the extension and retraction of one or more respective fountain nozzles of the plurality of fountain nozzles (12); and, an actuation system (34) configured to activate discharge of the liquid from the nozzle outlet (28), wherein the control system (36) is coupled to and controls the extension system (32) and the actuation system (3 4), wherein the extension system (32) and the actuation system (34) are discrete systems, wherein the extension system (32) includes: a conduit (64) that extends through the body (16) of each respective fountain nozzle (12) of the plurality of fountain nozzles (12); a first valve (66) disposed along the respective conduit (64) within a segment (22) at a bottom portion (24) of the body (16); a second valve (68) disposed along the respective conduit (64) adjacent segments (22) near a top portion (26) of the body (16); and, a pump (70) coupled to a fluid source (72) and configured to provide fluid to the respective conduit (64), wherein the control system (36) is configured to open the first valve (66) and close the second valve (68) and cause the pump (70) to pump fluid into the respective conduit (64) to extend the body (16) of the respective fountain nozzle (12).

2. The modular fountain system (42) of claim 1, wherein the control system (36) is configured to separately control actuation of discharge of the liquid from one or more fountain nozzles of the plurality of fountain nozzles (12).

3. The modular fountain system (42) of claim 1, wherein the control system (36) is configured to close the first valve (66) when the body (16) of the respective fountain nozzle (12) is fully extended to keep the liquid within the body to keep the body (16) extended, while ceasing flow of fluid from the pump (70).

4. The modular fountain system (42) of claim 1, wherein the extension system (32) comprises a pneumatic system configured to extend and retract the body (16) of each fountain nozzle (12).

5. The modular fountain system (42) of claim 1, wherein the actuation system (34) comprises a pump (76) configured to flow the liquid into the nozzle outlet (28) via a conduit for discharge of the liquid.

6. A method (98) for utilizing a modular fountain system (42) comprising a plurality of fountain nozzles (12), the method comprising: extending (100), via an extension system (32) of the modular fountain system (42), a portion of a telescopic body (16) of one or more of the plurality of fountain nozzles (12) out of a liquid, wherein a nozzle outlet (28) is coupled to an end of the portion of the telescopic body (16) of the one or more fountain nozzles (12) extending out of the liquid; activating (104), via an actuation system (34) of the modular fountain system (42), discharge of liquid from the nozzle outlet (28) of at least one fountain nozzle of the plurality of fountain nozzles (12), wherein the extension system (32) and the actuation system (34) function separately from each other; and keeping (102) the body (16) of at least one fountain nozzle of the plurality of fountain nozzles (12) extended without liquid being discharged from the nozzle outlet (28) of the at least one fountain nozzle (12), the method further comprising, via a control system (36) of the modular fountain system (42), for one or more fountain nozzles (12) of the plurality of fountain nozzles: opening a first valve (66) disposed along a conduit (64) within a segment (22) at a bottom portion (24) of the body (16) of the respective fountain nozzle (12); closing a second valve (68) disposed along the respective conduit (64) adjacent segments (22) near a top portion (26) of the body (16); and, providing fluid to the respective conduit (64) using a pump (70) coupled to a fluid source (72), to extend the body (16) of the respective fountain nozzle (12).

7. The method (98) of claim 6, comprising separately controlling actuation of discharge of the liquid from one or more fountain nozzles of the plurality of fountain nozzles (12).

8. The method (98) of claim 6, comprising closing the first valve (66) when the body (16) of the respective fountain nozzle (12) is fully extended to keep the liquid within the body to keep the body (16) extended while ceasing flow of fluid from the pump (70).

9. The method (98) of claim 6, comprising extending and retracting, via a pneumatic system of the extension system (32), the body (16) of each fountain nozzle (12).

10. The method (98) of claim 6, comprising causing, via a further pump (76) of the actuation system (34), the liquid to flo w into the nozzle outlet (28) via a conduit for discharge of the liquid.