US20150065261A1 - Flow divider for sheet flow water ride - Google Patents

Abstract

The invention relates to a flow divider for a sheet flow water ride having an inclined ride surface capable of dividing it into two or more sections, wherein more than one rider can then safely ride on the water ride at the same time. The water ride can include an inclined ride surface on which a sheet flow of water is propelled that can conform to the contours of the ride surface. The flow divider can be an inflatable tube that can float and extend longitudinally over the sheet flow in the same direction thereof. The flow divider can be secured at its front end to the water ride, and its back end can be relatively free to pivot and shift from side to side. In some embodiments, the air pressure in the tube can be adjusted to enable the divider to be inflated to the appropriate stiffness.

Description

RELATED APPLICATIONS
• This application is a continuation of U.S. patent application Ser. No. 13/683,790, filed Nov. 21, 2012, which claims priority under 35 U.S.C. §119 to U.S. Provisional Patent Application No. 61/563,265, filed on Nov. 23, 2011, the entire contents of which are incorporated herein by reference.
FIELD OF INVENTION
• This invention relates to a flow divider that can be positioned on the ride surface of a sheet flow water ride, such as those commonly known as the Flow Rider®, and used to separate one section of the ride surface from another. This enables more than one rider to safely ride on the water ride without the risk of interference from the other.
BACKGROUND
• Sheet flow water rides, such as those known as the Flow Rider®, typically comprise an inclined ride surface upon which a sheet flow of water under pressure is propelled at supercritical speed such that it conforms to the contours of the ride surface. The sheet flow essentially conforms to the physical shape and curvature of the ride surface, as it travels from a relatively low point to a relatively high point, such that the water takes on the shape of a wave. In some embodiments, the depth, speed and volume of flow can be predetermined to maintain a consistent supercritical flow that enables the sheet flow of water to conform to the curved shape of the surface. And, with the ride surface configured with a slope or in the shape of a wave, the water ride can create simulated wave shapes similar to those that exist in nature, upon which water skimming and surfing maneuvers can be performed.
• Typically, to ride this type of water ride, a rider will need to use a specially designed surfboard to maneuver on or across the moving sheet flow of water, wherein by using the force of gravity, the rider can move down and forward, and by using the rearward momentum of the sheet flow, the rider can travel up and back. By maneuvering the board in this manner, and shifting his or her weight back and forth, and staying balanced, the rider can reach an equilibrium point between the two forces and “ride the wave.” By making specific adjustments, and staying balanced, etc., the rider can perform various skimming and surfing maneuvers, including cut backs, slants, jumps, etc., which can simulate the sport of surfing.
• One potential drawback, however, to this type of water ride relates to its general inability to allow more than one rider to ride on it at the same time, which is a function of its size and physical limitations, etc. And, from a commercial viability standpoint, the amount of throughput that can be achieved can be a significant factor in its success.
• Attempts in the past have been made to increase the size of these types of water rides, but such efforts were normally for creating larger, more advanced waves, upon which more difficult maneuvers can be performed. While these attempts enabled riders to perform advanced maneuvers, and to have advanced competitions, because not all individuals are able to acquire the skill sets necessary to perform these types of maneuvers, these types of water rides often ended up being used mostly by beginners and intermediates, in which case, they ended up not being used to their maximum potential, even though the desire to accommodate advanced riders still exists.
• What is needed therefore is a device that can be used in conjunction with sheet flow water rides, which will allow more than one rider to ride on the ride surface at the same time, while promoting and maintaining safety, and can help increase throughput, and therefore, increase the commercial viability and success of the attraction.
SUMMARY
• The present invention relates to a water ride that produces a sheet flow of water under pressure having an inclined ride surface extending from a first end, having a housing with injection nozzles built in, to a second end, opposite the first end, wherein the water ride has an inclined ride surface upon which water skimming and surfing maneuvers can be performed thereon. In some other embodiments, a flow divider can be provided on the ride surface comprising an elongated inflatable tube extending substantially longitudinally downstream from the first end to the second end, wherein the divider effectively divides the ride surface into at least two sections.
• One advantage provided by the present flow divider is that it enables the ride surface to be split into two or more sections, such that more than one rider can ride on the water ride at the same time (in each of the sections), without the risk of collision or interference with each other. This can be achieved by physically dividing the ride surface with an elongated inflatable tube that extends in a longitudinal direction, i.e., in the same direction as the sheet flow of water, which enables individual riders to ride on separate sections without the risk of collision or interference.
• Some embodiments of the invention include a flow divider comprising an elongated flexible tube configured with multiple sections or bends that substantially conform to the contours of the ride surface. In some embodiments, the divider can comprise of a flexible outer layer made of durable material, such as flexible polyester-reinforced vinyl or rubber that surrounds an inner medium, such as pressurized air, although other watertight, durable and flexible materials can be used. In some embodiments, the outer medium can be constructed to form a tube-like structure that becomes cylindrical when inflated with air. Alternatively, the inner medium can be comprised of foam, water, feathers, cotton, or any other material that can support its cylindrical shape while still being flexible enough to conform to the shape of the ride surface below. Note: the outer layer can be eliminated if the inner medium comprises a material that could withstand the environmental operating conditions.
• In some embodiments of the invention, the flow divider can be constructed using a plurality of sections that are connected or otherwise secured together, such as by heat-welding or other conventional seaming method, to form a single elongated structure. In some embodiments, its shape is approximated by using straight sections, with bends or curves to form an overall curved shape. Moreover, in some embodiments, the flexibility of the outer medium and its weight can help to allow the flow divider to deform properly and therefore substantially conform to the curvature of the sheet flow of water travelling on the ride surface below. In some embodiments, the tube is inflatable and buoyant such that it floats on top of the sheet flow of water on the ride surface. It can be formed with its longitudinal axis extending substantially parallel to the ride surface and therefore it can approximate the shape of the flowing water profile, wherein an optimal shape can be developed for virtually any flow profile. This way, in some embodiments, it substantially conforms to the contours of the sheet flow of water, which helps to reduce or avoid any gaps that could otherwise form between the sheet flow, on one hand, and the flow divider, on the other hand. This can be helpful in preventing riders who have fallen from getting caught between the ride and flow divider, and/or crossing over to the other side.
• In some embodiments, the flow divider is connected at its front end to the nozzle housing, and the remainder of the flow divider remains substantially unsecured and relatively free to move from side to side across the majority of a width of the ride surface. This allows the divider to be more forgiving in the event a rider strikes it or falls on top of it, which can reduce the chances of any injuries occurring. It also allows the divider to be lifted up by the flowing body of water, which advantageously permits the flowing body of water to travel underneath the divider, which in turn, can be helpful in reducing any boundary layer effects that can otherwise affect the quality and consistency of the sheet flow.
• In some embodiments of the invention, the connector can comprise two straps on either side of the front end of the flow divider, wherein the opposing ends are connected to the water ride, such as with hooks onto the grated surface on the housing deck extended above the nozzles. In some embodiments of the invention, each strap is independently adjustable, such as with buckles or clips, so that the length thereof can be adjusted. This way, the rotational orientation of the divider relative to the ride surface can be adjusted, simply by shortening or elongating the straps, i.e., on one side or the other, or both, whereby the orientation of the divider can be rotated and shifted from left to right, or vice verse, as desired.
• Allowing the water to flow underneath the flow divider advantageously allows the energy of the flowing body of water to pass underneath, and therefore, reduce the likelihood that the divider will adversely affect the quality of the sheet flow. For example, by allowing the water to flow underneath it, potential boundary layer effects that could otherwise interfere with the flow's consistency and strength can be reduced, i.e., it can reduce the likelihood that hydraulic jumps can occur.
• In some embodiments, the divider can comprise a weight ballast on or near its back end, which is a weight that helps to limit the movement of the back end of the divider from side to side, i.e., it provides a dampening effect, wherein the divider is less likely to shift from side to side in the event a striking force acts on it, such as a rider falling. In some embodiments, the ballast can be a bag that can be filled with water, or other material, and can be built internally within a cavity inside the tube, but it can also be made of any other material that can achieve the desired results. While the ballast can be mounted anywhere along the length of the divider, in some embodiments, it can be positioned at the rearmost point, which provides the most effective means of dampening the side to side movement of the divider.
• In some embodiments, the tube's stiffness can be adjusted by adjusting the air pressure within the tube. In some embodiments, the pressure can be from one to five pounds per square inch, although it can be higher or lower, as needed, to provide the advantages noted herein.
• Several factors can be considered in determining the proper pressure and stiffness of the tube:
• First, by reducing the air pressure, the divider can become more flexible, which will allow it to sag and deform more, which is advantageous from the standpoint of enabling the divider to substantially conform to the shape of the sheet flow of water travelling on the ride surface, which can be important since the divider can be constructed of straight sections secured together. Reducing the air pressure also makes the divider softer and more forgiving which reduces the potential for riders to become injured in the event of a fall, etc. Also it allows the divider to absorb more energy so it doesn't shift as much when lateral forces are applied against it, such as when a rider falls, thereby reducing the possibility of interference with other riders.
• Second, by increasing the pressure, and making the divider stiffer, the divider can become more buoyant, and cause it to sit up higher on the sheet flow, which can reduce the amount of drag that can otherwise affect how the sheet flow travels underneath. And by allowing it to sit up higher, it will also be easier for it to straighten back out after it is pushed to the side, i.e., such as when a rider strikes it, wherein it can pivot and swing back to its original position in response to the water flow. On the other hand, making it too stiff can increase the risk of injury, such as when a rider falls, as well as make the divider more susceptible to lateral forces, wherein the divider will then be more easily pushed from side to side.
• Overall, in considering the above factors and choosing the appropriate pressure and stiffness, the goal is to reach a point where the divider is not too stiff, and not too soft, i.e., there is a proper balance between them, wherein the force of the sheet flow of water underneath it will tend to keep the divider oriented in the appropriate direction longitudinally downstream, away from the connection point, toward a point of minimum restraint, which is parallel to the direction of the sheet flow.
• The present invention also comprises a method of operating a sheet flow water ride, wherein the method comprises introducing water under pressure through one or more nozzles onto the ride surface to form a sheet flow of water that substantially conforms to the shape of the ride surface, and then, extending an elongated flow divider onto the ride surface, with its front end pivotally secured to the water ride housing, and its back end extending substantially unsecured and relatively free to move from side to side, wherein the divider effectively separates the ride surface into at least two sections, to enable more than one rider to ride on it at the same time.
• In some embodiments of the invention, the method also comprises securing only the front end of the divider to the water ride structure, such that the back end of the divider is substantially free to shift from side to side, wherein by allowing the divider to pivot and be acted upon by the water flow, the divider can be extend substantially downstream and maintained in this position over time.
• In some embodiments, the method can also comprise adjusting the elevation and rotational orientation of the flow divider, by adjusting the connection point to the water ride, to accommodate the depth of the sheet flow as well as to roll from left to right, or vice verse, as desired.
• The method also comprises allowing the sheet flow of water to pass underneath the divider, such that undue boundary layer effects that can adversely affect the sheet flow of water are reduced.
• The method also comprises adjusting the air pressure within the tube, to adjust the extent to which the tube is stiffer or softer, which can determine how the tube responds to and interacts with the sheet flow of water, i.e., whether it sits properly above the flowing body of water to eliminate any gaps that can otherwise form between the divider and water surface, and the degree to which the divider is forgiving in the event a rider falls, etc.
DESCRIPTION OF THE DRAWINGS
• FIG. 1 shows a sheet flow water ride with an inclined ride surface thereon, wherein an inflatable flow divider is extended longitudinally from the first end to the second end, and splits the ride surface into two sections, wherein the flow divider is provided with curves and/or bends that substantially conform to the shape and curvature of the ride surface;
• FIG. 2 is a side elevation view of the flow divider shown inFIG. 1, wherein the flow divider has sections that are secured together to form bends and/or curves that substantially conform to the shape and curvature of the ride surface;
• FIG. 3 is an end elevation view of the flow divider shown inFIG. 1, wherein the flow divider is shown with a connector strap on both sides, wherein each strap is capable of being independently adjusted (shortened or elongated) and can be used to elevate, rotate and shift the flow divider relative to the ride surface;
• FIG. 4 is a detail of the front end of the flow divider shown inFIG. 1, wherein the flow divider is secured at its front end to the water ride structure using two adjustable connector straps anchored to the ride structure;
• FIG. 5 shows a sheet flow water ride with an inclined ride surface in operation, wherein an inflatable flow divider is extended longitudinally from the first end to the second end, wherein the flow divider substantially conforms to the shape and curvature of the ride surface;
• FIG. 6 shows the water ride ofFIG. 5 in operation, wherein the flow divider is shown connected at its front end to the ride surface, wherein its back end pivots back and forth from side to side on the ride surface;
• FIG. 7A is a plan view of the flow divider ofFIG. 5, wherein the flow divider is shown as a single elongated structure;
• FIG. 7B is a side elevation view of the flow divider ofFIG. 5, wherein the flow divider is shown with various curves and/or bends that enable it to substantially conform to the shape and curvature of the ride surface, wherein a bladder acting as a weight ballast is provided at the back end of the flow divider;
• FIG. 8 is a side elevation similar toFIG. 7A, identifying the various sections that are secured together to form a single elongated structure;
• FIG. 9 is a plan view of section A which is formed from a sheet of material to make the flow divider ofFIG. 8, wherein the material used is shown flat prior to being rolled and secured together with other sections to form the elongated tubular structure;
• FIG. 10 is a plan view of section B which is formed from a sheet of material to make the flow divider ofFIG. 8, wherein the material used is shown flat prior to being rolled and secured together with other sections to form an elongated tubular structure;
• FIG. 11 is a plan view of section C which is formed from a sheet of material to make the flow divider ofFIG. 8, wherein the material used is shown flat prior to being rolled and secured together with other sections to form an elongated tubular structure;
• FIG. 12 is a plan view of section D which is formed from a sheet of material to make the flow divider ofFIG. 8, wherein the material used is shown flat prior to being rolled and secured together with other sections to form an elongated tubular structure;
• FIG. 13 is a plan view of section E which is formed from a sheet of material to make the flow divider ofFIG. 8, wherein the material used is shown flat prior to being rolled and secured together with other sections to form an elongated tubular structure;
• FIG. 14 is a plan view of section F which is formed from a sheet of material to make the flow divider ofFIG. 8, wherein the material used is shown flat prior to being rolled and secured together with other sections to form an elongated tubular structure;
• FIG. 15 is a plan view of section G which is formed from a sheet of material to make the flow divider ofFIG. 8, wherein the material used is shown flat prior to being rolled and secured together with other sections to form an elongated tubular structure;
• FIG. 16 is a plan view of several sections of material used to make the ends of the flow divider shown inFIG. 8;
• FIG. 17 shows another embodiment of the present invention with an inclined ride surface, wherein a flow fence is extended longitudinally from the first end to the second end, and splits the ride surface into two sections;
• FIG. 18 is a side elevation of the embodiment ofFIG. 17, wherein the flow fence is extended longitudinally from the front end to the back end, and has a lower section that substantially conforms to the shape and curvature of the ride surface;
• FIG. 19 is an end elevation view showing the flow divider ofFIG. 5 floating on a sheet flow of water, wherein this embodiment is shown inflated to a relatively high pressure; and
• FIG. 20 is an end elevation view showing the flow divider ofFIG. 5 floating on a sheet flow of water, wherein this embodiment is shown inflated to a moderately low pressure.
DETAILED DESCRIPTION
• FIG. 1 shows a water ride attraction1 having aninclined ride surface3 extending substantially from afirst end5 to asecond end7. In some embodiments, thefirst end5 can comprise ahousing9 in which at least one injection nozzle and pump are provided for injecting a sheet flow of water at supercritical speed ontoride surface3. In some embodiments, thehousing9 can comprise a deck with agrated surface10 thereon, if desired, or other form of protective covering for the injection equipment underneath.
• In some embodiments of the invention, thesecond end7 can be located oppositefirst end5, and can comprise agrated surface11 through which water flowing ontoride surface3 can pass and be removed, wherein the water can be recycled back underride surface3, fromsecond end7 tofirst end5, through a compartment located underneath, such that the water can be reused onride surface3. In some embodiments, extended on either side ofride surface3 areside walls13 andwalkways14 that extend substantially fromfirst end5 tosecond end7. In some embodiments,walkways14 can help enable riders who exitride surface3 at the bottom to walk up to an entrance point ongrated surface11 alongsecond end7.
• In some embodiments, theinclined ride surface3 can be a curved and/or inclined surface that extends upward fromfirst end5 tosecond end7 and can be configured with a slope that allows the sheet flow of water traveling thereon to conform to the shape and contour thereof, to form a wave shape that simulates those that exist in nature. In some embodiments,inclined ride surface3 is constructed with a padded surface with a concrete support underneath, or a fabric stretched tight across the sides to form a relatively soft andfirm ride surface3, upon which riders can maneuver without the risk of injury. In some embodiments,ride surface3 is strong and durable and supports the weight of the water, as well as the riders,20 and22, as shown inFIG. 5.
• In some embodiments, theride surface3 shown inFIG. 1 can extend betweenside walls13, but in the embodiment ofFIG. 5,ride surface3 starts narrower, due to the injection nozzle equipment inhousing9 being narrower thanride surface3. This way, the sheet flow of water traveling onride surface3 is kept substantially away fromside walls13, to reduce the boundary layer effects that can otherwise interfere with and disrupt the formation and consistency of the sheet flow of water onride surface3. If a sheet flow of water encounters a solid wall, the flowing water will typically slow down, thereby causing it to become sub-critical, wherein hydraulic jumps can form near the boundary layer where the water meets the wall.
• In accordance with some embodiments of the invention, aflow divider15 can be extended onride surface3 substantially fromfirst end5 tosecond end7, as shown inFIGS. 1 and 5, to divideride surface3 into two sections,17,19, wherein theflow divider15 can comprise aninflatable tubular member16 that extends longitudinally downstream with its bottom substantially conforming to the shape and contour ofride surface3. It should be noted here that other similar sheet flow water rides having various sizes and shapes are within the contemplation of the present invention, wherein one or moresimilar flow dividers15 can be used to divideride surface3 into two or more sections, etc., if desired.
• In some embodiments, flowdivider15 can be an elongatedinflatable tube16, as shown inFIG. 2, extending longitudinally downstream override surface3, substantially fromfirst end5 tosecond end7, and creates a physical barrier that effectively dividesride surface3 into two sections,17,19. This way, more than one rider can ride on the water ride1 at the same time, i.e., one rider can ride onsection17, and the other rider can ride onsection19, with a reduced risk of collision or injury.
• As shown inFIGS. 2,7A,7B and8, in some embodiments, flowdivider15 can be constructed using a plurality of sections, A, B, C, D, E, F and G, secured together to form an elongatedtubular structure16 with a plurality of curves and/or bends between them. In this embodiment, flowdivider15 can comprise of multiple straight sections, each made of a flat sheet of flexible material, as shown inFIGS. 9-15, that are rolled to form a tubular shape, wherein the sections are then secured together to form anelongated member16 that substantially conforms to the shape and contour ofride surface3, i.e., by angling each section relative to each other, a number of curves or bends can be provided along its length.
• In some embodiments of the invention, sections A, B, C, D, E, F and G can be secured together, such as by heat-welding over the joints, or other conventional sealing method, such as seam tape, etc., to form a continuous elongated structure. For example, flowdivider15 can be made of multiple pieces of flexible polyester reinforced vinyl or rubber that have been heat-welded and taped or otherwise secured together using a conventional method to form an elongated structure. The material can be constructed in the form of sheets, as shown inFIGS. 9-15, and rolled and connected together such that they form an elongated structure which becomes cylindrical when inflated with air. And by formingtube16 with an axis that is substantially parallel to ridesurface3, an optimal5 shape can be provided for the appropriate water flow profile.
• InFIGS. 9-16, some embodiments include an illustration where the shape of each piece of material forming sections A, B, C, D, E, F, and G, is shown, wherein each can be pre-cut to the proper dimension and shape, such that when they are rolled and secured together they form a cylindrical tube shape, with the appropriate bends and curves between them, wherein10 the overall configuration is more or less like a curved tubular structure that can substantially conform to the shape and contour ofride surface3. For example,FIG. 9 shows a sheet that forms section A, which can be rolled to form a cylindrical member atfront end23.FIG. 10 shows a sheet that forms section B, which can be rolled to form a cylindrical member between sections A and C, i.e., at an angle, downstream from15front end23.FIG. 11 shows a sheet that forms section C, which can be rolled to form a cylindrical member located adjacent section B, andFIG. 12 shows a sheet that forms section D, which can be rolled to form a cylindrical member located adjacent section C, closer to the middle.FIG. 13 shows a sheet that forms section E, which can be rolled to form a cylindrical member located adjacent section D, i.e., at a slight20 angle, near the center offlow divider15, andFIG. 14 shows a sheet that forms section F, which can be rolled to form a cylindrical member located adjacent section E, along the back half offlow divider15.FIG. 15 shows a sheet that forms section G, which can be rolled to form a cylindrical member located adjacent section F, comprisingback end23. And finally,FIG. 16 shows sections H and I, and end sections J and K, which form ends23 and25, located at the distal ends offlow divider15, i.e., pieces H and I form frusta-conical shapes and circular sections J and K fill the center.
• In some embodiments, when these pieces are rolled and secured together as explained above, they can be used to form an elongated tubular structure having the appropriate bends and curves that enable it to substantially conform to the shape and contour ofride surface3. Other means of construction including providing a single curved elongated tubular member, etc., or one filled with or made of foam or other flexible material can also be provided.
• In the example ofFIGS. 7A and 7B,front end23 offlow divider15 has a front section A that is raised and extended upward, relative to sections B, C and D, with section B forming a bend in between, such thatflow divider15 substantially conforms tohousing9, which is also raised. Extended further downstream-from left to right-section D can be connected to section E, and section E can be connected to section F, which form a slope upward to better conform to the slope ofride surface3. Then, at the top, located atback end25, section F can be connected to section G, which in some embodiments, can become level to accommodate gratedsurface11 onsecond end7.
• In some embodiments, aballast42 can be located inside section G, alongback end25, and can comprise a bag filled with water or other weighted material located internally withintube16. In some embodiments,ballast42 can function as a weight that helps to limit the movement ofback end25 from side to side during operation, i.e., it helps to dampen the lateral movement ofback end25. At the same time, the weight ofballast42 can be not too heavy such that it allowsflow divider15 to shift, if necessary, to some degree, such that, in the event a rider wipes out, and falls, flowdivider15 will be able to forgive some of the force by shifting sideways. And becauseback end25 is not secured to ridesurface3, it advantageously allows the fallen rider to be swept back downstream and will not get caught by any securing mechanism. Whileballast42 can be mounted anywhere along the length offlow divider15 other thanfront end23, it can be located at the rearmost point thereof, i.e., atback end25, to provide the most effective means of dampening the side to side movement offlow divider15.
• Because in some embodiments the overall shape offlow divider15 is determined by the use of straight sections secured together, it is the flexibility of the materials that can allowflow divider15 to substantially conform to the shape and contour ofride surface3, and therefore, the sheet flow of water thereon. In some embodiments, flowdivider15 is made of flexible sheets of material such as polyester reinforced vinyl, or rubber, or Hypalon, or virtually any durable and flexible airtight material, that are rolled, formed and secured together, into a tubular shape, to form aninflatable tube16. Becauseflow divider15 is substantially soft and flexible the likelihood of injuries occurring in the event of a fall, etc., can be reduced.
• In some embodiments of the invention, flowdivider15 can be constructed such that it is inflatable and buoyant and floats on top of the sheet flow of water surface to help eliminate any gaps that might otherwise exist betweenflow divider15 and the sheet flow below. This way, riders and their boards are prevented from accidentally getting caught underneath and betweenflow divider15 andride surface3. Also, by floating on the water surface, as shown inFIGS. 19 and 20,flow divider15 can allow the water flowing underneath it to travel freely, without being substantially interfered with or negatively impacted, while the sheet flow ofwater12 travels onride surface3. Accordingly, flowdivider15 does not form what would be tantamount to a solid wall or other boundary layer which can otherwise adversely affect the formation and consistency of the sheet flow. A solid wall normally creates friction that can reduce the speed of flow adjacent to it, wherein boundary layer effects, such as hydraulic jumps, can alter the flow's characteristics, thereby making it difficult to maintain its consistency and shape. With a solid wall, the water closest to the boundary layer will begin to slow down and travel at less than supercritical speed, in which case, adverse boundary layer effects can form, thereby making it difficult for riders to successfully maneuver and ride on the water flow.
• In some embodiments, theflow divider15 can comprise an air impervious outer layer which surrounds an inner medium, wherein the inner medium is pressurized air, but in other embodiments, the inner medium can be foam, feathers, cotton, or any other material that can provide support thereto, while still allowing enough flexibility to allow it to conform to the shape of the sheet flow of water below. Note that the outer layer can be eliminated altogether if the inner medium is made of a material that itself withstands the environmental operating conditions impacting the water ride.
• In some embodiments, another feature that helps to allow the sheet flow ofwater12 to travel freely underneathflow divider15 and thereby reduce the boundary layer effects is the manner in which flowdivider15 is restrained atfront end23, and is allowed to pivot back and forth about its connection point, while at the same time, the remainder offlow divider15 including itsback end25 is relatively free to shift from side to side, as shown inFIG. 6. In this respect, it should be noted that, in some embodiments, the force of the sheet flow of water beneathflow divider15 can cause it to be pulled downstream, away from the point of restraint, to a point of minimum frictional force, which, in this example, is in a direction away fromfirst end5 and towardsecond end7, which results inflow divider15 extending substantially longitudinally in the direction and orientation shown inFIG. 1.
• In some embodiments, with restraint atfront end23, the momentum created by the sheet flow can causeflow divider15 to be pulled longitudinally and extended downstream, i.e., in a direction parallel to the downstream direction of sheet flow ofwater12. Although there may be a tendency forflow divider15 to roll and shift out of its path due to lateral forces being applied against it, such as when a rider wipes out and falls on top of it, under normal circumstances, the sheet flow of water will have sufficient force to causeflow divider15 to be pulled downstream, such that the direction in which flowdivider15 will be maintained will be more or less parallel to the travel direction of the sheet flow.
• In some embodiments, flowdivider15 is connected at itsfront end23 tohousing9, and is relatively free to move from side to side along the length thereof, whereinflow divider15 can move from side to side downstream alongback end25. Whileback end25 can move from side to side, the force of the flowing water beneathdivider15 can help to extendflow divider15 longitudinally away from the point of restraint, to a point of minimum frictional force, due to the flow of water underneath, wherein the force tends to pull the flow divider in a direction that is substantially parallel to the travel direction of the water flow. Keepingback end25 offlow divider15 unsecured and relatively free to move advantageously reduces the risk of a rider falling and getting trapped and caught underneath. Note: if it is secured atback end25, such as with another strap, a fallen rider could potentially get swept back and entangled by the strap.
• In some embodiments, the restraint or connector that securesfront end23 offlow divider15 to water ride1 is made adjustable in length so that the elevation offlow divider15 can be adjusted relative to the sheet flow, to accommodate variations in the flow depth of the sheet flow, wherein this enables the position and orientation offlow divider15 relative to ridesurface3 to be adjusted if necessary. In some embodiments, the restraint system can comprise a pair ofadjustable straps29,31, as shown inFIGS. 3 and 4, wherein each strap can be connected at itsupper end33 to flowdivider15, via a D-ring, orloop34, etc., and at itslower end35, tohousing9 on the water ride structure. In this case,housing9 upon which straps29,31 are fastened can comprise agrated surface10, which in some embodiments can extend over and acrosshousing9, with injection nozzles and pump located below, alongfirst end5. A mountinghook39, as shown inFIG. 4, can be extended into the bars or members withingrated surface10, to fastenlower end35 of eachstrap29,31 thereto.
• In some embodiments of the invention, straps29,31 can be adjustable, with buckles, or webbing clips, etc., so thatflow divider15 can be positioned closer or further away fromride surface3, depending on the depth of the sheet flow of water thereon, which can be from one inch to several inches or more, and other conditions onride surface3. For example, by lengtheningstraps29,31,flow divider15 can be elevated to float on top of the sheet flow, until it reaches an equilibrium point, whereas, by shorteningstraps29,31,flow divider15 can be brought down towardride surface3, i.e., when the flow depth is low.
• In some embodiments, straps29,31 can be independently adjustable, such that each side can be independently elongated or shortened, as needed. For example, straps29,31 can be constructed with buckles or webbing clips or other adjustment mechanisms, similar to the way a belt, or straps on backpacks might be constructed, wherein by adjusting the length of eachstrap29,31, the rotational orientation oftube16 can be adjusted. For example, by lengtheningstrap29 on one side, and shorteningstrap31 on the other side, flowdivider15 can be rotated clockwise, such that it will roll to the right, while, by lengtheningstrap31 and shorteningstrap29,flow divider15 can be rotated in the other direction, i.e., counter clockwise, such thatflow divider15 will roll to the left (both directions are shown by the arrow inFIG. 3). It can be seen that by shortening the strap on one side, and/or lengthening the strap on the other side,tube16 can be oriented more to one side or the other, which directly affects the way it will rest onride surface3, i.e., whether it is pulled to the left or right, as shown inFIG. 6.
• By making these adjustments, the extent to whichflow divider15 is allowed to elevate up and down in response to the depth of the sheet flow of water and the way it rotates can be predetermined and adjusted. Moreover, when rotatingflow divider15 in this fashion, the lateral orientation thereof relative to ridesurface3 can be adjusted when desired, such as from side to side, as shown inFIG. 6.
• FIG. 5 shows acontainer-less ride surface3 wherein the injection means withinhousing9 is narrower thanride surface3, such that the flowing body of water formed onride surface3 does not substantially make contact withside walls13 until substantially downstream towardsecond end7. That is, by injecting sheet flow ofwater12 with a width that is narrower than the width ofride surface3, the sheet flow will stay substantially away fromside walls13, and therefore, undue friction will not be created along the sides, and therefore, adverse boundary layer effects can be reduced which can otherwise adversely affect the speed, formation and consistency of the sheet flow.
• FIG. 5 showsriders20 and22 riding onsections17 and19 ofride surface3 simultaneously, withflow divider15 extended in between them, acting as a physical barrier in the center ofride surface3. This way, asriders20,22 maneuver onride surface3, the risk of collision or interference with each other can be reduced. Thesheet flow12 can be adapted to flow fromhousing9 onfront end5 toward gratedsurface11 alongback end7, up and acrossinclined ride surface3. In some embodiments, thesheet flow12 can widen from the relativelynarrow housing9, towardsecond end7.
• In some embodiments, flowdivider15 can be about 15 to 50 inches in diameter, although it can be larger or smaller, if desired. In this respect, it should be large enough so that it provides a physical barrier betweensections17,19, to prevent riders from crossing and tripping over it. At the same time, it should be small enough so that it doesn't consume too much of the ridable space onride surface3.
• In some embodiments of the invention, the length offlow divider15 simply depends on the size ofride surface3. In some embodiments, flowdivider15 is pivotally connected to ridesurface3 on or nearhousing9, atfirst end5, withfront end23 extended abovehousing9, as shown inFIGS. 1 and 5, although not necessarily so. By keeping the restraining point upstream, the momentum of the sheet flow will tend to pullflow divider15 in a downstream direction, which helps keep it oriented properly as shown. Back end25 offlow divider15 can be extended up and beyondride surface3, and onto gratedsurface11, such thatballast42 helps to keepback end25 weighted down and rested on top of gratedsurface11. This not only helps pre-ventsback end25 from shifting from side to side, but by positioningballast42 over gratedsurface11, water flowing underneath flowdivider15 will have a chance to clear out through gratedsurface11 before being interfered with byballast42 acting onflow divider15. Stated differently, if theballast42 rested on top ofride surface3,ballast42 would causeflow divider15 to be weighed down at that point, wherein, flowdivider15 could then interfere with the free movement of the sheet flow underneath. But by extendingballast42 over gratedsurface11, its weight will not adversely affect the flow of water underneathflow divider15, and therefore, it will not negatively affect its ability to clear water through gratedsurface11. Ifballast42 was located closer tofront end23, it could potentially causeflow divider15 to rest directly on top ofride surface3, and thereby, prevent water from flowing underneath it, which in turn, can potentially create undesirable boundary layer effects, as discussed.
• In some embodiments, the amount of air pressure withindivider15 can be made adjustable which can substantially affect the performance thereof. When air pressure is relatively low, as shown inFIG. 20,flow divider15 will tend to sag and deform, which can allow it to conform better to the contour ofride surface3 and therefore the water flow profile. It will also enableflow divider15 to absorb more energy and be more flexible so that it can bend or kink better such as when a rider runs into it, which makes it safer to use. At the same time, ifflow divider15 is deflated too much, it can become too flat, wherein more boundary layer effects may be introduced into the sheet flow. That is, ifflow divider15 sags too much, there will be an increased surface area of contact between the water, on one hand, and flowdivider15, on the other hand, which may increase drag, which can then interfere with the free flow of water underneath it, and therefore, impact the speed and quality of the sheet flow.
• On the other hand, when air pressure is higher,flow divider15 will be stiffer, which will cause it to float and ride higher on top of the water surface, as shown inFIG. 19. This will allow it to react more to the forces acting on the side thereof, such as when water flows against it, thereby making it more likely that it can straighten back out when struck and pushed to the side, i.e., it can swing back and pivot about the connection point until its longitudinal orientation is restored. Inflatingflow divider15 with more air pressure will also increase its buoyancy, which means it will tend to float higher on top of the sheet flow, and therefore, be subject to the influences thereof, although if it is too stiff, it can increase the risk of injury when a rider falls.
• Some embodiments of the invention include an air pressure that takes into account the above factors and is about one to five pounds per square inch. In some embodiments, this givesflow divider15 the right combination of rigidity and flaccidity, wherein, the pressure can be high enough for it to remain sufficiently buoyant and hold a tubular shape, such that it rides on top of the sheet flow to avoid the boundary layer effects that can otherwise be detrimental to the sheet flow, but at the same time, the pressure is low enough such thatflow divider15 will sag and deform slightly, wherein its weight and flexibility will help it substantially conform to the shape and contour ofride surface3, thereby helping to avoid any gaps that may otherwise form betweenflow divider15 and the water flow. It will also be better able to absorb the impact and energy of any forces that may be applied against it, wherein the risk of injury can be reduced thereby, i.e., by making the tube softer and more forgiving, etc. Makingflow divider15 softer will also reduce the tendency for it to roll or rotate and deviate from its intended orientation relative to the travel direction of the water flow.
• FIGS. 17 and 18 show analternate embodiment60 with a flow barrier that comprises a longitudinally orientedfence61, which helps divideride surface3 into twosections17 and19. As with the embodiment ofFIG. 5, this sheet flow water ride attraction comprises aride surface3, withhousing9 andgrated surface10 thereon, alongfirst end5, whereinride surface3 is sloped and extends upward towardsecond end7, wherein agrated surface11 is provided alongsecond end7, and a sheet flow of water can be injected onride surface3 that travels fromfirst end5 tosecond end7.
• In this embodiment, flowfence61 can be composed of flexible bands ofmaterial62, as shown inFIG. 18, suspended and pulled tightly between twoposts63 which are affixed to ridestructure3 on opposite ends. The bottom ofmaterial62 can be filled with water or other weighted material to help it conform to the contour ofride surface3, i.e., by virtue of the weight ofbladder64 affixed or attached to the bottom ofmaterial62. While this embodiment allowsfence61 to substantially follow the shape and contour of the sheet flow, it is limited in its ability to adapt to different depths and shapes. As such, if the water flow is pumped over a flexible stretched membrane, for example, instead of a rigid surface, or the depth of the sheet flow is altered, it may not conform properly to the shape and contour of the sheet flow, especially in the event of a large deflection or change. Accordingly, a gap can exist between the lower edge offence61 and the sheet flow, allowing the possibility of a rider or board to pass underneathfence61. Moreover, if the water level extends above the bottom offence61, thefence61 could interfere with the flow of water underneath.

Claims (21)

1. A sheet flow water ride comprising:

a first end and a second end, with a nozzle housing built into said first end, and an inclined ride surface extending from said first end to said second end;

an elongated member having a front end and a back end, wherein said front end is substantially secured to said first end of said water ride, and said elongated member is extended rearward over said ride surface, substantially longitudinally toward said second end, wherein said back end of said elongated member is unsecured and relatively free to move side to side across the majority of a width of the ride surface; and

a connector securing said front end of said elongated member to said first end of said waterride, wherein said elongated member remains substantially free to pivot about said connector and move from side to side across said ride surface.

2. The water ride ofclaim 1, wherein said elongated member is an inflatable tube made from an outer flexible medium filled with air.

3. The water ride ofclaim 2, wherein said tube is configured with multiple curves and/or bends which allow said tube to substantially conform to the curvature of said ride surface and of the sheet flow of water traveling on said ride surface.

4. The water ride ofclaim 2, wherein said tube is made of rubber or vinyl, and constructed using a plurality of straight sections secured together to form a single elongated structure.

5. The water ride ofclaim 1, wherein said front end of said elongated member is configured to extend over said housing, and is followed downstream by a downward portion that drops down toward said ride surface, wherein said elongated member is provided with a rearward portion that substantially conforms to the upward curvature of said ride surface.

6. A sheet flow water ride comprising:

a first end and a second end, with a nozzle housing built into said first end, and an inclined ride surface extending from said first end to said second end;

an elongated member having a front end and a back end, wherein said front end is substantially secured to said first end of said water ride, and said elongated member is extended rearward over said ride surface, substantially longitudinally toward said second end, wherein said back end of said elongated member is remains unsecured;

a connector securing said front end of said elongated member to said first end of said water ride, wherein said elongated member remains substantially free to pivot about said connector and move from side to side on said ride surface and relatively free to move side to side across the majority of a width of the ride surface; and

wherein said connector comprises two straps extended on either side of said elongated member, wherein opposing ends of said straps are connected to said housing, wherein said straps are adjustable and can be independently shortened and extended to adjust the elevation and rotation of said elongated member relative to said ride surface.

7. The water ride ofclaim 6, wherein a weight ballast is provided on or near said back end of said elongated member such that said ballast is located above a grated surface positioned at or near said second end of said water ride.

8. The water ride ofclaim 2, wherein the pressure inside said tube ranges from about one psi to about five psi.

9. A divider adapted for a sheet flow water ride to divide an inclined ride surface thereon, said divider comprising:

an elongated inflatable tube having a front end and an unsecured back end that is relatively free to move side to side across the majority of a width of the inclined ride surface, wherein said tube is comprised of at least one bend or curve capable of enabling said tube to conform to the curvature of said inclined ride surface; and

a connector for substantially securing said tube to said water ride, wherein said connector is adjustable such that the elevation of said tube relative to said inclined ride surface can be adjusted; and

wherein said tube is relatively free to move side to side across said water ride.

10. The divider ofclaim 9, wherein said tube is constructed from an outer flexible medium filled with air, wherein said medium comprises multiple sections connected together but separated by curves and/or bends to allow said tube to substantially conform to the curvature of said inclined ride surface.

11. The divider ofclaim 10, wherein said multiple sections comprise a plurality of straight sections made of rubber or vinyl sheets rolled and secured together to form a single continuous elongated tubular structure.

12. The divider ofclaim 9, wherein said connector is adapted such that said front end of said divider is pivotally connected to said water ride.

13. A divider adapted for a sheet flow water ride to divide an inclined ride surface thereon, said divider comprising:

an elongated inflatable tube having a front end and a back end, wherein said tube is comprised of at least one bend or curve capable of enabling said tube to conform to the curvature of said inclined ride surface; and

a connector for substantially securing said tube to said water ride, wherein said connector is adjustable such that the elevation of said tube relative to said inclined ride surface can be adjusted and is adapted such that the front end of the divider is pivotally connected to the water ride, and the back end of the tube remains unsecured and substantially free to pivot and move from side to side across the majority of a width of the ride surface; and

wherein said connector comprises two straps connected on either side of said tube, wherein said straps are independently adjustable and can be shortened and extended to adjust the rotational orientation of said tube relative to said inclined ride surface.

14. A divider adapted for a sheet flow water ride to divide an inclined ride surface thereon, said divider comprising:

an elongated inflatable tube having a front end and a back end, wherein said tube is comprised of at least one bend or curve capable of enabling said tube to conform to the curvature of said inclined ride surface; and

a connector for substantially securing said tube to said water ride, wherein said connector is adjustable such that the elevation of said tube relative to said inclined ride surface can be adjusted; and

wherein said back end of said tube comprises a bladder therein that can be filled with water that functions as a weight ballast.

15. The divider ofclaim 9, wherein the pressure inside said tube can be adjusted from about one psi to about five psi to adjust the stiffness of said tube.

16. A sheet flow water ride comprising:

an inclined ride surface extending from a first end to a second end, wherein a sheet flow of water can travel thereon from said first end to said second end;

an elongated divider having a front end and a back end, wherein said front end is secured to said first end of said water ride, and said back end is unsecured and extends rearward toward said second end, longitudinally away from said first end;

wherein said divider is adapted to substantially conform to the curvature of said inclined ride surface and the curvature of the sheet flow of water traveling thereon and is relatively free to move side to side across the inclined ride surface.

17. The water ride ofclaim 16, wherein said divider comprises a flexible inflatable tube made of rubber or vinyl, which is constructed using a plurality of sections secured together to form a single continuous elongated structure.

18. The water ride ofclaim 17, wherein said tube is buoyant such that it floats on top of the sheet flow of water on said inclined ride surface.

19. The water ride ofclaim 16, wherein said front end of said divider is pivotally connected to said first end of said water ride.

20. A sheet flow water ride comprising:

an inclined ride surface extending from a first end to a second end, wherein a sheet flow of water can travel thereon from said first end to said second end;

an elongated divider having a front end and a back end, wherein said front end is secured to said first end of said water ride, and said back end extends rearward toward said second end, longitudinally away from said first end; and

wherein said divider is adapted to substantially conform to the curvature of said inclined ride surface and the curvature of the sheet flow of water traveling thereon; and

wherein a connector is provided to secure said divider to said water ride, wherein said connector comprises two straps on either side of said divider, wherein opposing ends of said straps are connected to said water ride, and

said straps are independently adjustable and can be shortened and extended to adjust the elevation and rotation of said divider relative to said inclined ride surface.

21. A sheet flow water ride comprising:

an inclined ride surface extending from a first end to a second end, wherein a sheet flow of water can travel thereon from said first end to said second end;

an elongated divider having a front end and a back end, wherein said front end is secured to said first end of said water ride, and said back end extends rearward toward said second end, longitudinally away from said first end; and

wherein said divider is adapted to substantially conform to the curvature of said inclined ride surface and the curvature of the sheet flow of water traveling thereon; and

wherein said back end of said divider has a bladder that can be filled with water and functions as a weight ballast.

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