ARTIFICIAL WAVE GENERATION SYSTEM FOR WAKE-SURFING

Abstract

A system 10 for forming artificial waves on surface of water is disclosed. The system 10 has a pulling apparatus 14 installed on a stationary surface, a pulled apparatus 16 being a floating structure having a shape configured to form artificial waves when the pulled apparatus 16 moves on the surface of water, and a line 22 coupling the pulled apparatus 16 with the pulling apparatus 14 for pulling the pulled apparatus 16 to form the artificial waves. A configuration of the pulled apparatus 16 is disclosed for obtaining optimum bow 34 and stern wakes 46.

Description

TECHNICAL FIELD

The present disclosure relates to wake surfing. In particular, the present disclosure provides an artificial wave generation system for wake-surfing.

BACKGROUND

Surfing is one of the water sports in which humans ride waves in the water while standing on a surfboard. In this sport, the surfer starts a certain distance from the shore and moves towards the shore, standing on the surfboard. Wake-surfing is a water sport in which a rider trails behind a boat, riding a wake generated by the boat without being directly pulled by the boat. Different arrangements are used to generate artificial waves for surfing, such as hydrofoils, paddles, plungers and water or air chambers.

Several types of artificial wave pool technologies use a plow to create wakes for surfing. One such technology uses a plow running on rails installed on the bottom of the pool. Other technology uses a plow running on rails installed on supports above the water surface.

The known systems of generating waves typically require high capital costs, are complex equipment and have a low ratio of energy consumption to the quality of waves obtained.

The present disclosure is directed to address one or more problems as discussed above and other problems associated with the prior art.

SUMMARY

A system for forming artificial waves on the surface of the water is disclosed. The system has a pulling apparatus installed on a stationary surface, a pulled apparatus being a floating structure having a shape configured to form artificial waves when the pulled apparatus moves on the surface of the water, and a line coupling the pulled apparatus with the pulling apparatus for pulling the pulled apparatus to form the artificial waves.

In an embodiment, the pulling apparatus may be configured to pull the pulled apparatus in a first direction and a second direction opposite to the first direction.

In an embodiment, the system may have one or more anchors installed on the stationary surface to support and guide the line.

In an embodiment, one or more pulleys may be attached to the anchors to support and guide the line.

In an aspect, the pulling apparatus may be an electric winch.

In an embodiment, the line may be submerged in the water.

In an embodiment, the anchors may be submerged in the water.

In an embodiment, the electric winch may be operated by an automatic control system.

The pulled apparatus may have a hull and ballast like a boat.

In an aspect, the pulled apparatus may be substantially hollow in construction.

In another aspect, the hull may have a bow adapted for forming bow waves.

In an aspect, the hull may have a stern portion adapted for forming stern wakes.

In an embodiment, a bottom of the hull may have a concave surface between the bilges of the hull.

In an embodiment, the line may include a track line directly coupled with the pulling apparatus for pulling the track line. The track line may be running along the direction of movement of the pulled apparatus. The line may further include a haul line directly coupled with the pulled apparatus at one end and the track line at another end for pulling the pulled apparatus when the track line is pulled.

In an embodiment, the pulled apparatus has a spacer attached at its bottom. The pulled apparatus may be coupled to the track line via the spacer.

A pulled apparatus for the system is disclosed. The pulled apparatus may have a boat shaped hull with the portion of the hull configured for submerging into water includes a bow, a stern being substantially flat, sides that are substantially parallel to each other, and a bottom with a concave surface extending from the stern to a part of length of the pulled apparatus.

In an embodiment, the concave surface may extend from the stern to about a third of the longitudinal length of the pulled apparatus.

In an embodiment, the bow has a sharp leading edge that is at a right angle to the bottom.

In an aspect, the leading edge of the bow widens up to a third of the longitudinal length of the pulled apparatus.

In an aspect, a radius of a cheekbone of the hull towards the bow is eighth part of the breadth of the pulled apparatus.

In an aspect, a radius of a cheekbone of the hull towards the stern is thirtieth part of the breadth of the pulled apparatus.

In an embodiment, the bottom is of V-shape.

In an aspect, the angle of the bottom with respect to horizontal towards a front portion of the pulled apparatus is about 18 degrees.

In an aspect, the angle of the bottom with respect to horizontal towards a middle portion of the pulled apparatus is about 5 degrees.

In an embodiment, the concave surface has a depth of about a tenth part of a breadth of the pulled apparatus.

In an embodiment, an angle formed between the bottom and the stern is between 80-100 degrees.

In an embodiment, an angle formed between the sides and the stern is between 80-100 degrees.

The foregoing summary is illustrative only and is not intended to be limiting. In addition to the illustrative aspects, embodiments, and features described herein, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.

BRIEF DESCRIPTION OF DRAWINGS

The invention itself, together with further features and attended advantages, will become apparent from consideration of the following detailed description, taken in conjunction with the accompanying drawings. One or more embodiments of the present invention are described, by way of example only, with reference to the accompanied drawings wherein like reference numerals represent like elements and in which:

FIG. 1 schematically illustrates a system for forming artificial waves on the surface of the water in accordance with an embodiment of the present disclosure.

FIG. 2 illustrates a front view of the system for forming artificial waves on surface of water in accordance with an embodiment of the present disclosure.

FIG. 3 illustrates a top view of the pulled apparatus moving on the surface of water in accordance with an embodiment of the present disclosure.

FIG. 4 illustrates a side view of the pulled apparatus moving on the surface of water in accordance with an embodiment of the present disclosure.

FIG. 5 illustrates a schematic back view of the pulled apparatus of the system floating on water in accordance with an embodiment of the present disclosure.

FIG. 6 illustrates a side view of the pulled apparatus moving on the surface of water in accordance with an embodiment of the present disclosure.

FIG. 7 illustrates a side view of the pulled apparatus moving on the surface of water in accordance with an embodiment of the present disclosure.

FIG. 8 illustrates comparison of a bottom view and a side view of the pulled apparatus.

FIG. 9 illustrates a front view and a rear view of the pulled apparatus in accordance with an embodiment of the present disclosure.

FIG. 10 illustrates a side view of the pulled apparatus in accordance with an embodiment of the present disclosure.

FIG. 11 illustrates a side view of the pulled apparatus in accordance with an embodiment of the present disclosure.

FIG. 12 illustrates a bottom view of the pulled apparatus in accordance with an embodiment of the present disclosure.

Skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the drawings may be exaggerated relative to other elements to help to improve understanding of embodiments of the present invention.

DESCRIPTION

While the invention as disclosed is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and will be described in detail below. It should be understood, however, that it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and the scope of the invention as defined by the appended claims.

Reference numerals are listed at the end of the specification, and are used consistently throughout the drawings and specification.

Referring to FIG. 1 and FIG. 2, the present disclosure provides for a system 10 for forming artificial waves on the surface of water. The system 10 as disclosed herein may be used or may be deployed on any type of large or small, natural or man-made, water body 12 such as ponds, lakes, pools, seas, dams, etc. The system 10 includes, inter-alia, a pulling apparatus 14 and a pulled apparatus 16. The pulled apparatus 16 may be a static structure configured to float on a surface of water. The pulled apparatus 16 creates wakes suitable for surfing when the pulling apparatus 14 pulls the pulled apparatus 16.

FIG. 1 and FIG. 2 illustrates a schematic diagram of the system 10 in accordance with an embodiment of the present disclosure. As shown, the system 10 has a pulling apparatus 14, a floating pulled apparatus 16, and a line 22 coupling the pulling apparatus 14 with the pulled apparatus 16. FIG. 1 illustrates a system 10 that is installed in a water body 12 having a floor 20 and a shore 18.

In an embodiment, the pulling apparatus 14 may be a winch. The pulling apparatus 14 may be any suitable winch which is capable to pull the pulled apparatus 16 by pulling a line 22 coupling the pulled apparatus 16 with the pulling apparatus 14 including an electric winch, a hydraulic winch, an air winch, a capstan winch and a drum winch. In some embodiments the pulling apparatus 14 may be any electrically powered winch which uses an electric motor along with drums or pulleys to pull the line 22. In an embodiment, batteries may be used to power the pulling apparatus 14. Yet in an embodiment, solar panels along with rechargeable batteries may be used for powering the pulling apparatus 14. In an embodiment, the pulling apparatus 14 may be a traction winch. In an embodiment, the winch may be a regular winch with two drums. Any other suitable winch or other pulling arrangement may be used to pull the pulled apparatus 16 by pulling the line 22 attached to the pulled apparatus 16.

The pulling apparatus 14 may be installed on a stationary surface relative to which the pulled apparatus 16 may be moved by pulling the line 22 attached to the pulled apparatus 16. The stationary surface may be any suitable surface such as a shore 18 of the water body 12, a bottom floor 20 of the water body 12, a floating pontoon attached to the stationary surface, etc. Any platform stationary with respect to the water body 12 can be utilized for the installation of the pulling apparatus 14. In the embodiment as illustrated in FIG. 1, the pulling apparatus 14 is installed on the shore 18 of the water body 12.

The pulled apparatus 16 is in the form of a plow that floats on the surface of water and is configured for moving in a direction on the surface of water for forming artificial waves on the surface of water. The pulled apparatus 16, being a floating structure that is configured to move on the water surface, may have a boat-like hull 24. Hence, nomenclature typically associated with boats is utilized in this disclosure to explain the construction, shape and configuration of the pulled apparatus 16. The pulled apparatus 16 may have a shape or profile that is suitable to form wakes on the water surface when the pulled apparatus 16 is moved in the water. The pulled apparatus 16 may have the hull 24 with a ballast (not shown). The ballast placed in the hull 24 may provide for stability to the floating pulled apparatus 16. In an embodiment, the pulled apparatus 16 may be entirely covered from the top so that water, dust or other foreign elements may not enter the inner cavity of the pulled apparatus 16. The overall shape and size of the pulled apparatus 16 may be optimized in accordance with the size and shape of waves to be formed by the pulled apparatus 16.

A front portion 26 of the hull 24 of pulled apparatus 16 may have a bow 34 (show in FIG. 4) to form bow waves 48. A back portion 28 of the hull 24 of the pulled apparatus 16 may have a stern 36 (shown in FIG. 4) to form stern wakes 46 suitable for surfing. Accordingly, the pulled apparatus 16 may generate a series of waves including bow waves 48 and stern wakes 46. Referring to FIG. 1 and FIG. 2, the stern 36 of the pulled apparatus 16 forms stern wakes 46 suitable for wake surfing. Further, as the bow waves 48 move over a shallow part of the water body 12, the bow waves 48 start breaking as in the ocean and produce another series of waves suitable for surfing.

FIG. 3 illustrates a top view of the pulled apparatus 16 moving on water. The lines 30 of FIG. 3 schematically illustrate the flow of water when the pulled apparatus 16 moves on the surface of the water. Overall, the pulled apparatus 16 may have a wedge shape when looked at from the top. The front portion 26 may be narrow and the back portion 28 may be wider.

Referring to FIG. 3, the side angle At of the pulled apparatus 16, i.e., the angle between the bilges 38 and the stern 36, hereinafter referred to as the ‘At’, is one of the features that determine the size and quality of wakes formed by the pulled apparatus 16. FIG. 4 illustrates a side view of the pulled apparatus 16 moving on the surface of the water. The bottom angle Ac of the pulled apparatus 16, i.e., the angle formed by the bottom 42 and the stern 36 of the pulled apparatus 16, is another feature that determines the quality and size of the wakes formed. The angles At and Ac are discussed in more detail later herein.

FIG. 5 illustrates a schematic back view of the pulled apparatus 16. The shape and configuration of the pulled apparatus 16 shown in FIG. 5 is an example only. Another shape of the pulled apparatus 16 is described in FIGS. 8-12 later herein. As shown in FIG. 5, the bottom 42 of the pulled apparatus 16 may have a concave surface 44 between the bilges 38 of the hull 24. The provision of the concave surface 44 on the bottom 42 ensures that the top of the stern wake 46 does not collapse on the wall of the wave. When the pulled apparatus 16 moves, the area of the hull with the concave surface 44 of the bottom surface creates a zone of low pressure where a part of the water flow goes so that the front part of the wake's wall remains smooth and comfortable for surfing.

Referring to FIGS. 1-5, the pulled apparatus 16 may have changeable geometry. In an embodiment, the pulled apparatus 16 may have movable side or stern panels. The panels may be moved to adjust the size and shape of the wave being generated by the pulled apparatus 16. For example, the pulled apparatus 16 may be provided with static or movable flaps on its bilges 38 and/or the bottom 42 to aid in the formation of artificial waves. In an embodiment, the flaps may be movable to control the characteristics of the wave formed. Suitable hydraulic or mechanical mechanisms may be installed with flaps to move the flaps and adjust the flaps as required. Such mechanisms may be controllable manually or automatically. In such embodiments, such flaps may be moved and adjusted remotely by use of wireless communication or signalling systems.

The pulled apparatus 16 may be made of any suitable material or a combination of suitable materials. For example, the pulled apparatus 16 may be made using plastic, concrete, wood, steel, aluminium, fibreglass, etc.

Yet in an embodiment, multiple pulled apparatus 16 with different shapes may be used interchangeably in the system 10. Different pulled apparatus 16 may be attached to a haul line 52 to create different forms of waves. In an embodiment, where a track line 50 is long enough, more than one pulled apparatus 16 may be attached to the same track line 50 to create more than one wave on the surface of the water.

The line 22 may be used to pull the pulled apparatus 16. The line 22 may be any cord, cable, rope, chain, etc. suitable for pulling the pulled apparatus 16. Preferably, the line 22 may be rope that is suitable for use in water. The line 22 may include the track line 50 and the haul line 52. The track line 50 may be coupled to the pulling apparatus 14 for pulling the track line 50. The track line 50 may define the route and direction in which the pulled apparatus 16 moves on the surface of the water.

The track line 50 may be guided and supported by anchors 54 and/or pulleys 56 as required for the pulling operation. The type and number of anchors 54 or pulleys 56 may depend on the length and path of the track line 50, the type and size of the water body 12 and other factors. In the embodiment as shown in FIG. 1 anchors 54 and pulleys 56 are used to support and guide the track line 50.

The line 22 may further include the haul line 52. The haul line 52 may be attached to the track line 50 at a first end and to the front portion 26 of the pulled apparatus 16 at a second end. The point at which the haul line 52 attaches to the track line 50 is referred to as a joint 58. When the track line 50 moves, the haul line 52 along with the pulled apparatus 16 moves in the direction of movement of the track line 50. As shown in FIG. 1, the track line 50 is shown moving in the direction indicated by the arrow. The haul line 52 and the pulled apparatus 16 are shown being pulled in the same direction. As shown in FIG. 2, wakes are formed by the movement of the pulled apparatus 16. Surfers are shown riding the artificial waves formed by the movement of the pulled apparatus 16.

Referring to FIGS. 6-7, a spacer 60 may be provided on the pulled apparatus 16. The spacer 60 may be a rigid structure that may be attached to the pulled apparatus 16. In an embodiment, the spacer 60 may be attached to a bottom of the hull 24 of the pulled apparatus 16. The pulled apparatus 16 may be attached to the track line 50 via the spacer 60. As shown in FIG. 6, the pulled apparatus 16 may be attached to the track line 50 via the spacer 60 and the haul line 52, i.e. the spacer 60 may be coupled to the haul line 52, and the haul line may be coupled to the track line 50. Further, as shown in FIG. 7, in an embodiment, the spacer 60 may be directly coupled to the track line 50. Use of a spacer 60 may avoid the haul line 52 or the track line 50 being used near to the water surface. This may prevent entanglement of objects into the haul line. The spacer 60 may be made of any material as suitable. In an embodiment, the spacer 60 may be provided with provisions suitable to prevent injury to human if by accident any human comes in contact with the spacer. The structure or material of the spacer 60 may be configured accordingly.

The track line 50 as shown in the illustrated embodiment may be endless, i.e., in a loop form. The track line 50 may be configured to pull the pulled apparatus 16 in one direction. The direction of movement of the track line 50 may be reversed for movement of the pulled apparatus 16 in the other direction, i.e. opposite to the first direction. For example, referring to FIG. 1, once the joint 58 on the track line 50 reaches closer to the pulling apparatus 14, the pulling apparatus 14 may reverse the direction of movement of the track line 50. The track line 50 may now move in the opposite direction and the direction of movement of the pulled apparatus 16 also reverses due to the pull of the front portion 26 of the pulled apparatus 16 by the haul line 52. As the pulled apparatus 16 is connected to the haul line 52 at the front portion 26 only, the pulled apparatus 16 may automatically get realigned in the new direction of movement of the plow, i.e., the front portion 26 being forward in the direction of movement and the back portion 28 trailing the front portion 26. The pulling apparatus 14 may move the track line 50 in reverse direction till the joint 58 reaches a distal point on the track line 50. Thereafter, the pulling apparatus 14 may pull the pulled apparatus 16 again the first direction.

The path of the track line 50 may be laid out as suitable, for example, shore to shore, perpendicular to the shore, parallel to the shore, loop form, etc. The number, type and configuration of the pulling apparatus 14 and the anchors 54 or pulleys 56 may be chosen accordingly the support the track line 50. The track line 50 may be positioned under or above water. In an embodiment, the pulling may operate automatically. Suitable sensors and detectors may be used to generate signals corresponding to the position of the track line 50 or the pulled apparatus 16, and based on such signals, the pulling apparatus 14 may be operated automatically to move or change the direction of the pulled apparatus 16 as suitable. Thus, the pulling apparatus 14 may be operated by an automatic control system.

The following paragraphs and FIGS. 8-12 explain the configuration of the pulled apparatus. It is to be noted FIGS. 8-12 illustrate only the bottom portion of the hull 24 that submerges in the water. The rest of the portion of the pulled apparatus is not shown in FIGS. 8-12, which may be made in any desired shape. For example, the pulled apparatus 14 may be formed in an overall shape of a boat. It is pertinent to be note that the extent of the submerged portion of the pulled apparatus 16 may depend on the shape of the bottom portion as well as the overall weight of the pulled apparatus 16.

FIG. 8 illustrates a bottom view and a side view of the pulled apparatus 16 (only the submerged portion). ‘L’ represents longitudinal length of the pulled apparatus, ‘D’ represents depth of the pulled apparatus 16 that is submerged in water, and ‘B’ represents the breadth or beam of the pulled apparatus 16. FIG. 8 further illustrates division of the length ‘L’ of the pulled apparatus 16 into 10 equal parts wherein the alphabets ‘b’ to ‘j’ represent the respective divisional lines and alphabets ‘a’ and ‘k’ represent the distal ends of the length. The reference sign ‘At’ refers to the angle between the sides 62 and the stern 36 of the pulled apparatus 16. The reference sign ‘C’ represents area of the hull 24 with the concave surface 44. The following paragraphs explain the structure and configuration of the pulled apparatus 16 with reference to indicia used in FIG. 8.

FIG. 9 illustrates the front view as well as the rear view of the pulled apparatus 16. The left half portion of FIG. 9 illustrates the left side half of the rear view while the right half portion of FIG. 9 illustrates the right half side of the front view. The reference numeral 66 denotes a vertical plane running along the length L of the pulled apparatus 16. The pulled apparatus 16 may be symmetrical about this vertical plane 66. Therefore, the complete rear view or the complete front view of the pulled apparatus 16 may be obtained by mirroring the illustrations of the front view and rear view of the pulled apparatus 16 of FIG. 9.

Referring to FIGS. 8-12, as stated hereinabove, the pulled apparatus 16 is explained by use of the nomenclature analogous to a boat. The pulled apparatus 16 may have the bow 34, the sides 62, the stern 36 and the bottom 42. The overall ratio of the length L is to the breadth B of the pulled apparatus 16 may be equal to 2.5:

$\frac{L}{B}=2.5$

The above number ‘2.5’, and in general, the numbers given in the equations in this disclosure refer to an approximate value and not in absolute terms. Minor and insignificant variations in the ratio or numbers, or angles may be considered within the scope of the present disclosure.

The sides 62 may be substantially parallel to each other. The sides 62 may be angled substantially orthogonally to the stern. Referring to FIG. 9 angle ‘At’ may be about 90 degrees.

The bow 34 may have a sharp leading edge 68. The bow 34 starting from the leading edge may quickly widen up to the 3/10^th part of the length L (i.e. at 0.3*L), i.e. till about the line ‘h’ in FIG. 8. While approaching the line ‘h’ the breadth B of the pulled apparatus 16 may reach about its maximum breadth B defining the parallel sides 62 of the pulled apparatus 16 that extend till the stern 36. Cheekbones 64 of the pulled apparatus, i.e. the transition of the sides 62 to the bottom 42 are rounded. The rounding radii are depicted in FIG. 8 and FIG. 9. The rounding radius R1 towards the bow 34 of the pulled apparatus 16 may be about ⅛^th part of the breadth B of the pulled apparatus 16, i.e.:

$R_1=\frac{B}{8}$

The rounding radius R₂ of the cheekbones 64 towards the stern 36 of the pulled apparatus 16 may be about 1/30^th part of the breadth B of the pulled apparatus 16, i.e.:

$R_2=\frac{B}{30}$

The bottom 42 of the pulled apparatus 16 may be V-shaped. Referring to FIG. 9, the angle between the bottom 42 of the hull 24 and a horizontal plane is referred to as ‘Ab’. The angle Ab₁ towards the bow 34 of the pulled apparatus 16 may be approximately 18 degrees. The angle Ab₂ towards the stern 36 may be about 5 degrees.

The bottom 42 of the pulled apparatus 16 towards the stern 36 may be substantially horizontally flat in shape as shown in FIG. 9. Further, as shown in FIG. 8 and FIG. 9, the bottom 42 towards the stern 36 may have an area with concave surface 44. The concave surface 44 may start from the stern 36 and span up to about a third of the length L (i.e. up to 0.3*L) along the longitudinal length L of the pulled apparatus 16. Further, the breadth of the concave surface 44 towards the aft or the stern 36 may be about a third part of the breadth B of the pulled apparatus 16 (i.e. 0.3*B). The concave surface 44 may reduce in breadth gradually towards the bow 34. Further, the depth of the concave surface 44 towards the stern 36 may be 10th part of the breadth (i.e. 0.1*B).

As shown in FIGS. 9-12, the stern 36 may be flat and vertical. The edge of the transition from the bottom 42 to the stern 36 may be sharp as shown in FIGS. 9-12. In an embodiment, the shape of the pulled apparatus 16 towards the stern 36 may be optimized to obtain optimum shape of the stern wakes 46 behind the pulled apparatus 16.

As shown in FIG. 10 and FIG. 11, the angle between the bottom 42 and the stern 36 may be slightly varied. Referring to FIG. 10 and FIG. 11, the bottom 42 may slightly narrow (shown in FIG. 11) or widen (shown in FIG. 10) when approaching the stern 36. In such embodiment, for example the bottom 42 may widen/narrow from about a distance of 10th part of the length L of the pulled apparatus 16 (i.e. at about 0.1*L from the stern). The reference sign ‘Ac’ denotes angle between the stern 36 and the bottom 42 of the pulled apparatus 16. Referring to FIG. 10 and FIG. 11, for example, the angles Ac1 or Ac2 may range between 80-100 degrees.

The angle between the sides 62 and the stern 36 may be optimized to obtain optimum shape of the transom waves. As shown in FIG. 12, the breadth B of the pulled apparatus 16 may widen or narrow when approaching the stern 36. Accordingly, the angle ‘At’ (shown in FIG. 12) formed between the sides 62 and the stern 36 may vary for example from 80 degrees to 100 degrees. Referring to FIG. 12, angle At1 represents the widening of the breadth B whereas angle At2 represents narrowing of the breadth B when approaching the stern 36.

The system 10 as disclosed herein may be installed on any large or small water body 12 whether artificial or man-made. Further, the system 10 as disclosed herein is economical to install and operate. Further, the use of a pulling apparatus 14 for the movement of the plow like pulled apparatus 16 requires much less energy as compared to the use of surf-boats for the generation of artificial waves for wake surfing. Further, as the pulled apparatus 16 is a static structure, the cost of making and operating the system 10 may be optimized. The pulled apparatus 16 as disclosed herein may be used to generate stern wakes 46 and bow waves 48 in varying shapes and sizes as desired.

Moreover, there are no dangerous moving parts on the pulled apparatus 16, e.g., propellers, engines, etc. Therefore, it is less likely for a person to get injured by the pulled apparatus 16. Compared to the use of surf boats, the disclosed system limits the possibility of damaging or harming underwater life and the ecosystem in the water body 12.

LIST OF REFERENCE NUMERALS

• • System 10
  • Water body 12
  • Pulling apparatus 14
  • Pulled apparatus 16
  • Shore 18
  • Floor 20
  • Line 22
  • Hull 24
  • Front portion 26
  • Back portion 28
  • Lines (flow of water) 30
  • Side angle At 32
  • Bow 34
  • Stern 36
  • Bilges 38
  • Bottom angle Ac 40
  • Bottom 42
  • Concave surface 44
  • Stern wake 46
  • Bow wave 48
  • Track line 50
  • Haul line 52
  • Anchors 54
  • Pulleys 56
  • Joint 58
  • Spacer 60
  • Sides 62
  • Cheekbones 64
  • Vertical plane 66
  • Leading edge 68

Claims

1. A system for forming artificial waves for wake-surfing on surface of water, the system comprising: a pulling apparatus installed on a stationary surface;a pulled apparatus being a floating structure having a shape configured to form waves when the pulled apparatus moves on the surface of water; anda line 22 coupling the pulled apparatus with the pulling apparatus for pulling the pulled apparatus to form the artificial waves.

2. The system for forming artificial waves for wake-surfing on surface of water of claim 1, wherein the pulling apparatus is configured to pull the pulled apparatus in a first direction and a second direction opposite to the first direction.

3. The system for forming artificial waves for wake-surfing on surface of water of claim 1, further comprising one or more anchors installed on the stationary surface to support and guide the line.

4. The system for forming artificial waves for wake-surfing on surface of water of claim 3, further comprising one or more pulleys attached to the anchors to support and guide the line.

5. The system for forming artificial waves for wake-surfing on surface of water of claim 1, wherein the pulling apparatus is an electric winch.

6. The system for forming artificial waves for wake-surfing on surface of water of claim 1, wherein the line is submerged in the water.

7. The system for forming artificial waves for wake-surfing on surface of water of claim 3, wherein the anchors are submerged in the water.

8. The system for forming artificial waves for wake-surfing on surface of water of claim 4, wherein the electric winch is operated by an automatic control system.

9. The system for forming artificial waves for wake-surfing on surface of water of claim 1, wherein the pulled apparatus comprises a hull and a ballast.

10. The system for forming artificial waves for wake-surfing on surface of water of claim 1, wherein the pulled apparatus is substantially hollow.

11. The system for forming artificial waves for wake-surfing on surface of water of claim 9, wherein the hull comprises a bow adapted for forming bow waves.

12. The system for forming artificial waves for wake-surfing on surface of water of claim 9, wherein the hull comprises a stern adapted for forming stern wakes.

13. The system for forming artificial waves for wake-surfing on surface of water of claim 9, wherein a bottom of the hull has a concave surface between bilges of the hull.

14. The system for forming artificial waves for wake-surfing on surface of water of claim 1, wherein the line comprises: a track line directly coupled with the pulling apparatus for pulling the track line, the track line running along the direction of movement of the pulled apparatus; anda haul line having a first end and a second end, the second end directly coupled with the pulled apparatus and the first end of the haul line coupled to the track line for pulling the pulled apparatus when the track line is pulled.

15. The system for forming artificial waves for wake-surfing on surface of water of claim 10 wherein the pulled apparatus has a spacer attached at its bottom, the pulled apparatus coupled to the track line via the spacer.

16. The system for forming artificial waves for wake-surfing on surface of water as claimed in claim 1, the pulled apparatus having hull shaped as a boat with a portion of the hull configured for submerging into water comprising: a bow;a stern being substantially flat;a longitudinal length between the bow and the stern;sides that are substantially parallel to each other; anda bottom with a concave surface extending from the stern to a part of longitudinal length of the pulled apparatus.

17. The system for forming artificial waves for wake-surfing on surface of water of claim 16, wherein the concave surface extends from the stern to about a third of the longitudinal length of the pulled apparatus.

18. The system for forming artificial waves for wake-surfing on surface of water of claim 16, wherein the bow has a sharp leading edge that is orthogonal to the bottom.

19. The system for forming artificial waves for wake-surfing on surface of water of claim 18, wherein the sharp leading edge of the bow widens up to a third of the longitudinal length of the pulled apparatus.

20. The system for forming artificial waves for wake-surfing on surface of water of claim 16, wherein the hull has a breadth, and wherein the hull has one or more cheekbones wherein a radius of one of the one or more cheekbones of the hull towards the bow is one-eighth part of the breadth of the pulled apparatus.

21. The system for forming artificial waves for wake-surfing on surface of water of claim 16, wherein the hull has a breadth, and wherein the hull has one or more cheekbones wherein a radius of one of the one or more cheekbones of the hull towards the stern is one-thirtieth part of the breadth of the pulled apparatus.

22. The system for forming artificial waves for wake-surfing on surface of water of claim 16, wherein the bottom includes a V-shape.

23. The system for forming artificial waves for wake-surfing on surface of water of claim 22, wherein an angle of the bottom with respect to horizontal within a front portion of the pulled apparatus is about eighteen degrees.

24. The system for forming artificial waves for wake-surfing on surface of water of claim 22, wherein the hull has a middle portion, wherein the angle of the bottom with respect to horizontal within the middle portion of the pulled apparatus is about five degrees.

25. The system for forming artificial waves for wake-surfing on surface of water of claim 16, wherein the concave surface has a depth of about a tenth part of a breadth of the pulled apparatus.

26. The system for forming artificial waves for wake-surfing on surface of water of claim 16, wherein an angle formed between the bottom and the stern is between eighty and one-hundred degrees.

27. The system for forming artificial waves for wake-surfing on surface of water of claim 16, wherein an angle formed between the sides and the stern is between eighty and one-hundred degrees.