CN101746490A - Petrol engine power surfboard with improved structure - Google Patents
Petrol engine power surfboard with improved structure Download PDFInfo
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- CN101746490A CN101746490A CN200810244391A CN200810244391A CN101746490A CN 101746490 A CN101746490 A CN 101746490A CN 200810244391 A CN200810244391 A CN 200810244391A CN 200810244391 A CN200810244391 A CN 200810244391A CN 101746490 A CN101746490 A CN 101746490A
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- surfboard
- transmission shaft
- gasoline engine
- pump case
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Abstract
The invention discloses a petrol engine power surfboard with an improved structure. Surfboard advancing direction serves as the reference; the inner part of a surfboard body forms a hollow cavity which is provided with an opening on the surfboard body; a power unit is contained in the hollow cavity; a front cover plate is detachably and fixedly covered on the hollow cavity; the core part of the power unit is a petrol engine; the core part of a boost unit is a boost pump comprising a propeller and a transmission shaft; the power output end of the power unit is connected with the transmission shaft of the boost pump; a control unit controls power unit output power and surfboard advancing direction; the propeller is fixedly sheathed on the transmission shaft; and a guide plate is fixed in the rear end of the pump case. The embodiment can jet flow in a straight line, thus improving thrust; the invention only needs to bear resistance borne by the surfboard body in water so as to improve navigational speed, so that the surfboard not only ensures that a sporter can enjoy surfing on calm water, but also has beautiful appearance.
Description
Technical field
The present invention relates to a kind of surfboard, especially a kind of surfboard that drives and improve propeller structure by engine petrol.
Background technology
Surfing can be taken exercises again owing to fabulous, and is very popular.Common surfboard must could use by the thrust of stormy waves, have only that common surfboard just can make surfing show its unique charm when stormy waves is big, when stormy waves hour uses just can't the indulge in luxuriousness to one's heart's desire enjoyment of surfing of common surfboard, surfboard common on the right up and down water surface has just lost function.So there is the dealer to invent the surfboard of band actuating device, this class surfboard generally is by motor driven propelling unit under water, advance by propelling unit promotion surfboard again, but general existing underwater propeller is that current are sprayed with spiral fashion, the power that current produced of spiral fashion ejection can be divided into forward thrust and the component on the hand of rotation, and advance that hull or surfboard etc. advance effective force be forward thrust, therefore current can not all be converted into the power of pushing ahead with the power that the spiral fashion ejection is produced, and make effective merit reduce.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of gasoline engine power surfboard that improves push structure, the gasoline engine power surfboard of this improvement push structure can not only spray current with straight line, improved thrust, make on the water surface with no wind, no waves, the indulge in luxuriousness to one's heart's desire enjoyment of surfing of sporter, and handsome in appearance.
The present invention for the technical scheme that solves its technical matters and adopt is:
A kind of gasoline engine power surfboard that improves push structure, comprise one can waterborne plate body unit, a power unit, a control unit and a propulsion unit, with the surfboard working direction is benchmark, plate body inside is formed with hollow cavity, this hollow cavity be opened on plate body above, power unit is placed in the hollow cavity, front shroud removably fixedly is covered on the hollow cavity, the core component of power unit is an engine petrol, the core component of propulsion unit is a boost pump, boost pump comprises screw propeller and transmission shaft, the clutch end of power unit is connected with the transmission shaft of boost pump, power unit is given boost pump with transmission of power, boost pump promotes surfboard and advances, the working direction of control unit control power unit horsepower output and surfboard, described screw propeller fixed cover is located on the transmission shaft, pump case rear end internal fixation has deflecting plate, deflecting plate mainly is made of some breather vanes, breather vane is made up of flat segments and cambered surface section, flat segments and transmission shafts are to paralleling, cambered surface Duan Yiduan is connected with flat segments, the cambered surface section other end is near screw propeller, flat segments and cambered surface section are one, breather vane is at least two, some breather vanes are uniformly-spaced around the pump case center shaft to be arranged, breather vane is fixed in the pump case inside face away from an end of pump case center shaft, and some breather vane cambered surface sections on the transmission shaft hand of rotation towards unanimity.
Further technical scheme of the present invention is:
Described engine petrol is a two-cycle gasoline engine.
Described engine petrol is a four-stroke gasoline engine.
Described cambered surface Duan Yiduan is connected with flat segments is tangent.
Described breather vane is provided with four, and propeller blade is provided with three.
Described deflecting plate is provided with fixed cover, breather vane is fixed in the outside face of fixed cover near an end of pump case center shaft, fixed cover is a hollow, fixed cover towards the end in the external world for sealing and shape with the rectification cap, end towards transmission shaft is an opening, with the surfboard working direction is benchmark, fixed cover inwall front portion radially outward is formed with first ladder, be lined with pad before first ladder, pad backstop is in first ladder, be provided with first ball bearing of main shaft before the pad, the first ball bearing of main shaft backstop is in pad, the transmission shaft not-go-end inserts in first ball bearing of main shaft, and the first ball bearing of main shaft front is provided with first oil sealing, described pad, first ball bearing of main shaft, the transmission shaft not-go-end and first oil sealing are positioned at fixed cover.Pad provides the shaft shoulder and has made things convenient for dismounting for first ball bearing of main shaft.
The structure that described screw propeller fixed cover is located on the transmission shaft is: screw propeller is positioned at pump case, and the propeller center is provided with the slurry hub, and slurry hub inner surface axial is provided with female splines, and the transmission shaft outside face is axially arranged with male splines, and female splines and male splines fasten.Spline connects the load-carrying capacity height, and is good to neutrality and guidance quality, and little to the influence of transmission shaft and slurry hub, and easily assembling is not yielding.
With the surfboard working direction is benchmark, and the rear end of described pump case is fixed with the reducing cover, and the reducing cover is hollow, and reducing cover front end is fixed in the pump case rear end, and reducing cover front inner diameter equals pump housing back end inside diameter, and reducing cover front inner diameter is overlapped back end inside diameter greater than reducing.Reducing cover front inner diameter is overlapped back end inside diameter greater than reducing, water flow section can be dwindled, and has increased water velocity under discharge unmodified situation, thereby has increased propelling thrust.
With the surfboard working direction is benchmark, the pump case front end is fixed with the inlet segment of hollow cylindrical, the inlet segment center shaft is provided with the bracing ring of hollow, be provided with plurality of support, bracing ring is connected by plurality of support with inlet segment, stay bearing plate is at least two, plurality of support is that center shaft is and disperses distribution with the bracing ring, the bracing ring internal fixation has tapered roller bearing, transmission shaft is through in the tapered roller bearing, the rear and front end of tapered roller bearing all is provided with second oil sealing, and the inlet segment lower external face is provided with into water plate, and the water inlet plate is dull and stereotyped, before the water inlet prelaminar part is positioned at inlet segment, and the water inlet prelaminar part offers arc opening, is provided with two connecting panels, and connecting panel will intake and is connected with the left side of inlet segment front upper portion on the left of the prelaminar part, another piece connecting panel prelaminar part right side that will intake is connected with the right side of inlet segment front upper portion, the front end of connecting panel is an arc, and camber line is crooked backward, described inlet segment, bracing ring, stay bearing plate, water inlet plate and connecting panel are one.
Be provided with first, two flanges, with the surfboard working direction is benchmark, bottom, plate body rear upwards is formed with groove, first flange is fixed in the groove, second flange is before first flange, the transmission shaft of boost pump is through at first simultaneously, in two flanges, the first flange front inner surface radially outward forms second ladder, be provided with the 3rd oil sealing before second ladder, the 3rd oil sealing stop is in second ladder, and the second flange rear inner surface radially inwardly forms ring-type backstop, the anterior shoulder of transmission shaft is provided with second ball bearing of main shaft, the second ball bearing of main shaft stop is in ring-type backstop back, and ring-type backstop front is provided with the 4th oil sealing, first, two flanges fix.
The invention has the beneficial effects as follows: owing to be benchmark with the surfboard working direction, plate body inside is formed with hollow cavity, this hollow cavity is opened on above the plate body, power unit is placed in the hollow cavity, front shroud removably fixedly is covered on the hollow cavity, the core component of power unit is an engine petrol, the core component of propulsion unit is a boost pump, boost pump comprises screw propeller and transmission shaft, the clutch end of power unit is connected with the transmission shaft of boost pump, power unit is given boost pump with transmission of power, and boost pump promotes surfboard and advances, the working direction of control unit control power unit horsepower output and surfboard, the screw propeller fixed cover is located on the transmission shaft, pump case rear end internal fixation has deflecting plate, and this example can spray current with straight line, improved thrust, and only need bear the resistance of plate body in water, improved the speed of a ship or plane, can not only make on the water surface with no wind, no waves, the indulge in luxuriousness to one's heart's desire enjoyment of surfing of sporter, and handsome in appearance.
Description of drawings
Fig. 1 behaves and uses scheme drawing of the present invention;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is a decomposition texture scheme drawing of the present invention;
Fig. 4 is an another side structural representation of the present invention;
Fig. 5 is a boost pump sectional structure scheme drawing of the present invention;
Fig. 6 is a boost pump decomposition texture scheme drawing of the present invention;
Fig. 7 is a boost pump deflector structure scheme drawing of the present invention;
Fig. 8 is a boost pump breather vane structural representation of the present invention.
The specific embodiment
Embodiment: a kind of gasoline engine power surfboard that improves push structure, comprise one can waterborne plate body unit 1, a power unit 2, a control unit 3 and a propulsion unit 4, with the surfboard working direction is benchmark, plate body 11 inside are formed with hollow cavity 111, this hollow cavity be opened on plate body above, power unit is placed in the hollow cavity, front shroud 12 removably fixedly is covered on the hollow cavity, the core component of power unit is an engine petrol 21, the core component of propulsion unit is a boost pump 42, boost pump comprises screw propeller 421 and transmission shaft 422, the clutch end of power unit is connected with the transmission shaft of boost pump, power unit is given boost pump with transmission of power, boost pump promotes surfboard and advances, the working direction of control unit control power unit horsepower output and surfboard, described screw propeller fixed cover is located on the transmission shaft, pump case 423 rear end internal fixation have deflecting plate 424, deflecting plate mainly is made of some breather vanes 4241, breather vane is made up of flat segments 42411 and cambered surface section 42412, flat segments and transmission shafts are to paralleling, cambered surface Duan Yiduan is connected with flat segments, the cambered surface section other end is near screw propeller, flat segments and cambered surface section are one, breather vane is at least two, some breather vanes are uniformly-spaced around the pump case center shaft to be arranged, breather vane is fixed in the pump case inside face away from an end of pump case center shaft, and some breather vane cambered surface sections on the transmission shaft hand of rotation towards consistent (be some breather vanes towards unanimity, and towards both can be identical with the transmission shaft hand of rotation, also can be opposite with the transmission shaft hand of rotation).
Described engine petrol 21 can be two-cycle gasoline engine, also can be four-stroke gasoline engine.
Described cambered surface section 42,412 one ends and 42411 tangent connections of flat segments.
Described breather vane 4241 is provided with four, and propeller blade is provided with three.
Described deflecting plate 424 is provided with fixed cover 4242, breather vane is fixed in the outside face of fixed cover near an end of pump case center shaft, fixed cover is a hollow, fixed cover towards the end in the external world for sealing and shape with the rectification cap, end towards transmission shaft is an opening, with the surfboard working direction is benchmark, fixed cover inwall front portion radially outward is formed with first ladder 42421, be lined with pad 42422 before first ladder, pad backstop is in first ladder, be provided with first ball bearing of main shaft 42423 before the pad, the first ball bearing of main shaft backstop is in pad, transmission shaft not-go-end 4221 inserts in first ball bearing of main shaft, and the first ball bearing of main shaft front is provided with first oil sealing 42424, described pad, first ball bearing of main shaft, the transmission shaft not-go-end and first oil sealing are positioned at fixed cover.Pad provides the shaft shoulder and has made things convenient for dismounting for first ball bearing of main shaft.
The structure that described screw propeller fixed cover is located on the transmission shaft is: screw propeller is positioned at pump case, and the propeller center is provided with slurry hub 4211, and slurry hub inner surface axial is provided with female splines, and the transmission shaft outside face is axially arranged with male splines, and female splines and male splines fasten.Spline connects the load-carrying capacity height, and is good to neutrality and guidance quality, and little to the influence of transmission shaft and slurry hub, and easily assembling is not yielding.
With the surfboard working direction is benchmark, and the rear end of described pump case 423 is fixed with reducing cover 425, and the reducing cover is hollow, and reducing cover front end is fixed in the pump case rear end, and reducing cover front inner diameter equals pump housing back end inside diameter, and reducing cover front inner diameter is overlapped back end inside diameter greater than reducing.Reducing cover front inner diameter is overlapped back end inside diameter greater than reducing, water flow section can be dwindled, and has increased water velocity under discharge unmodified situation, thereby has increased propelling thrust.
With the surfboard working direction is benchmark, pump case 423 front ends are fixed with the inlet segment 426 of hollow cylindrical, the inlet segment center shaft is provided with the bracing ring 4261 of hollow, be provided with plurality of support, bracing ring is connected by plurality of support 4262 with inlet segment, stay bearing plate is at least two, plurality of support is that center shaft is and disperses distribution with the bracing ring, the bracing ring internal fixation has tapered roller bearing 4263, transmission shaft is through in the tapered roller bearing, the rear and front end of tapered roller bearing all is provided with second oil sealing 4264, the inlet segment lower external face is provided with into water plate 4265, the water inlet plate is dull and stereotyped, before water inlet prelaminar part 42651 is positioned at inlet segment, and the water inlet prelaminar part offers arc opening, be provided with two connecting panels 4266, connecting panel prelaminar part left side that will intake is connected with the left side of inlet segment front upper portion, another piece connecting panel prelaminar part right side that will intake is connected with the right side of inlet segment front upper portion, the front end of connecting panel is an arc, and camber line is crooked backward, described inlet segment, bracing ring, stay bearing plate, water inlet plate and connecting panel are one.
Be provided with first, two flanges 14,428, with the surfboard working direction is benchmark, bottom, plate body 11 rears upwards is formed with groove, first flange is fixed in the groove, second flange is before first flange, the transmission shaft 422 of boost pump is through at first simultaneously, in two flanges, the first flange front inner surface radially outward forms second ladder 4271, be provided with the 3rd oil sealing 4272 before second ladder, the 3rd oil sealing stop is in second ladder, the second flange rear inner surface radially inwardly forms ring-type backstop 4281, transmission shaft 422 anterior shoulders are provided with second ball bearing of main shaft 4282, the second ball bearing of main shaft stop is in ring-type backstop back, and ring-type backstop front is provided with the 4th oil sealing 4283, the first, two flanges fix.
Described plate body unit 1 comprises plate body 11, front shroud 12, back shroud 13, first flange 14 and bumper 15.First and second flange 14,428 is used for fixing and supports the transmission shaft of boost pump, and bumper prevents that plate body and engine petrol from shaking together.
Described power unit 2 comprises engine petrol 21, freeing pipe 22, silencer 23, leaf valve 24, fuel tank 25, oil pump 26 and bracing frame 27.Silencer is used to eliminate the noise that engine petrol produces, and bracing frame is used for supporting and fixing engine petrol, and leaf valve is used to prevent aqueous reflux.
Described control unit 3 comprises handle 31, handle backguy 32, rubber coating 33, turnover tracheae 34 and battery case 35.The turnover tracheae guarantees wind circulation in the cabin.
Described propulsion unit 4 comprises drive coupling 41, boost pump 42, lower cover 43, water inlet deflecting plate 44, big fin 45 and finlet 46.Drive coupling is connected the clutch end of power unit with the transmission shaft of boost pump, and drive coupling is connected with control unit, the water inlet deflecting plate better absorbs water boost pump, and big fin is used to change the sense of motion of surfboard, and finlet is used to keep the balance of surfboard.
The axial centre that this routine described center shaft is parts.
Claims (10)
1. gasoline engine power surfboard that improves push structure, comprise one can waterborne plate body unit (1), a power unit (2), a control unit (3) and a propulsion unit (4), it is characterized in that: with the surfboard working direction is benchmark, plate body (11) inside is formed with hollow cavity (111), this hollow cavity be opened on plate body above, power unit is placed in the hollow cavity, front shroud (12) removably fixedly is covered on the hollow cavity, the core component of power unit is engine petrol (21), the core component of propulsion unit is boost pump (42), boost pump comprises screw propeller (421) and transmission shaft (422), the clutch end of power unit is connected with the transmission shaft of boost pump, power unit is given boost pump with transmission of power, boost pump promotes surfboard and advances, the working direction of control unit control power unit horsepower output and surfboard, described screw propeller fixed cover is located on the transmission shaft, pump case (423) rear end internal fixation has deflecting plate (424), deflecting plate mainly is made of some breather vanes (4241), breather vane is made up of flat segments (42411) and cambered surface section (42412), flat segments and transmission shafts are to paralleling, cambered surface Duan Yiduan is connected with flat segments, the cambered surface section other end is near screw propeller, flat segments and cambered surface section are one, breather vane is at least two, some breather vanes are uniformly-spaced around the pump case center shaft to be arranged, breather vane is fixed in the pump case inside face away from an end of pump case center shaft, and some breather vane cambered surface sections on the transmission shaft hand of rotation towards unanimity.
2. a kind of gasoline engine power surfboard that improves push structure according to claim 1 is characterized in that: described engine petrol (21) is a two-cycle gasoline engine.
3. a kind of gasoline engine power surfboard that improves push structure according to claim 1 is characterized in that: described engine petrol (21) is a four-stroke gasoline engine.
4. a kind of gasoline engine power surfboard that improves push structure according to claim 1 is characterized in that: described cambered surface section (42412) one ends and tangent connection of flat segments (42411).
5. a kind of gasoline engine power surfboard that improves push structure according to claim 1 is characterized in that: described breather vane (4241) is provided with four, and propeller blade is provided with three.
6. a kind of gasoline engine power surfboard that improves push structure according to claim 1, it is characterized in that: described deflecting plate (424) is provided with fixed cover (4242), breather vane is fixed in the outside face of fixed cover near an end of pump case center shaft, fixed cover is a hollow, fixed cover towards the end in the external world for sealing and shape with the rectification cap, end towards transmission shaft is an opening, with the surfboard working direction is benchmark, fixed cover inwall front portion radially outward is formed with first ladder (42421), be lined with pad (42422) before first ladder, pad backstop is in first ladder, be provided with first ball bearing of main shaft (42423) before the pad, the first ball bearing of main shaft backstop is in pad, transmission shaft not-go-end (4221) inserts in first ball bearing of main shaft, the first ball bearing of main shaft front is provided with first oil sealing (42424), described pad, first ball bearing of main shaft, the transmission shaft not-go-end and first oil sealing are positioned at fixed cover.
7. a kind of gasoline engine power surfboard that improves push structure according to claim 1, it is characterized in that: the structure that described screw propeller fixed cover is located on the transmission shaft is: screw propeller is positioned at pump case, the propeller center is provided with slurry hub (4211), slurry hub inner surface axial is provided with female splines, the transmission shaft outside face is axially arranged with male splines, and female splines and male splines fasten.
8. a kind of gasoline engine power surfboard that improves push structure according to claim 1, it is characterized in that: with the surfboard working direction is benchmark, the rear end of described pump case (423) is fixed with reducing cover (425), the reducing cover is hollow, reducing cover front end is fixed in the pump case rear end, reducing cover front inner diameter equals pump housing back end inside diameter, and reducing cover front inner diameter is overlapped back end inside diameter greater than reducing.
9. a kind of gasoline engine power surfboard that improves push structure according to claim 1, it is characterized in that: with the surfboard working direction is benchmark, pump case (423) front end is fixed with the inlet segment (426) of hollow cylindrical, the inlet segment center shaft is provided with the bracing ring (4261) of hollow, be provided with plurality of support, bracing ring is connected by plurality of support (4262) with inlet segment, stay bearing plate is at least two, plurality of support is that center shaft is and disperses distribution with the bracing ring, the bracing ring internal fixation has tapered roller bearing (4263), transmission shaft is through in the tapered roller bearing, the rear and front end of tapered roller bearing all is provided with second oil sealing (4264), the inlet segment lower external face is provided with into water plate (4265), the water inlet plate is dull and stereotyped, before water inlet prelaminar part (42651) is positioned at inlet segment, and the water inlet prelaminar part offers arc opening, be provided with two connecting panels (4266), connecting panel prelaminar part left side that will intake is connected with the left side of inlet segment front upper portion, another piece connecting panel prelaminar part right side that will intake is connected with the right side of inlet segment front upper portion, the front end of connecting panel is an arc, and camber line is crooked backward, described inlet segment, bracing ring, stay bearing plate, water inlet plate and connecting panel are one.
10. a kind of gasoline engine power surfboard that improves push structure according to claim 1, it is characterized in that: be provided with first, two flanges (14,428), with the surfboard working direction is benchmark, bottom, plate body (11) rear upwards is formed with groove, first flange is fixed in the groove, second flange is before first flange, the transmission shaft of boost pump (422) is through at first simultaneously, in two flanges, the first flange front inner surface radially outward forms second ladder (4271), be provided with the 3rd oil sealing (4272) before second ladder, the 3rd oil sealing stop is in second ladder, the second flange rear inner surface radially inwardly forms ring-type backstop (4281), the anterior shoulder of transmission shaft (422) is provided with second ball bearing of main shaft (4282), the second ball bearing of main shaft stop is in ring-type backstop back, ring-type backstop front is provided with the 4th oil sealing (4283), first, two flanges fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810244391A CN101746490A (en) | 2008-11-28 | 2008-11-28 | Petrol engine power surfboard with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810244391A CN101746490A (en) | 2008-11-28 | 2008-11-28 | Petrol engine power surfboard with improved structure |
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| CN101746490A true CN101746490A (en) | 2010-06-23 |
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| CN200810244391A Pending CN101746490A (en) | 2008-11-28 | 2008-11-28 | Petrol engine power surfboard with improved structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096350A (en) * | 2014-07-15 | 2014-10-15 | 太仓市车中宝休闲用品有限公司 | Foldable surfing type sliding plate |
| CN104260846A (en) * | 2014-09-25 | 2015-01-07 | 重庆特飞航空动力科技有限公司 | Ultralight multifunctional powered surfboard |
| WO2017220000A1 (en) * | 2016-06-24 | 2017-12-28 | 洛唯优 | Water paddle module apparatus |
| US10940917B2 (en) | 2016-09-12 | 2021-03-09 | Kai Concepts, LLC | Watercraft device with hydrofoil and electric propeller system |
| US10946939B1 (en) | 2020-04-22 | 2021-03-16 | Kai Concepts, LLC | Watercraft having a waterproof container and a waterproof electrical connector |
| US11485457B1 (en) | 2021-06-14 | 2022-11-01 | Kai Concepts, LLC | Hydrojet propulsion system |
| US11878775B2 (en) | 2021-07-13 | 2024-01-23 | Kai Concepts, LLC | Leash system and methods of use |
| US11897583B2 (en) | 2020-04-22 | 2024-02-13 | Kai Concepts, LLC | Watercraft device with hydrofoil and electric propulsion system |
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2008
- 2008-11-28 CN CN200810244391A patent/CN101746490A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096350B (en) * | 2014-07-15 | 2015-11-18 | 太仓市车中宝休闲用品有限公司 | Collapsible surfing type slide plate |
| CN104096350A (en) * | 2014-07-15 | 2014-10-15 | 太仓市车中宝休闲用品有限公司 | Foldable surfing type sliding plate |
| CN104260846A (en) * | 2014-09-25 | 2015-01-07 | 重庆特飞航空动力科技有限公司 | Ultralight multifunctional powered surfboard |
| WO2017220000A1 (en) * | 2016-06-24 | 2017-12-28 | 洛唯优 | Water paddle module apparatus |
| US11479324B2 (en) | 2016-09-12 | 2022-10-25 | Kai Concepts, LLP | Watercraft device with hydrofoil and electric propeller system |
| US10940917B2 (en) | 2016-09-12 | 2021-03-09 | Kai Concepts, LLC | Watercraft device with hydrofoil and electric propeller system |
| US11919608B2 (en) | 2016-09-12 | 2024-03-05 | Kai Concepts, LLC | Watercraft device with hydrofoil and electric propeller system |
| US11091232B1 (en) | 2020-04-22 | 2021-08-17 | Kai Concepts, LLC | Watercraft having a waterproof container and a waterproof electrical connector |
| US11801919B2 (en) | 2020-04-22 | 2023-10-31 | Kai Concepts, LLC | Waterproof container having a waterproof electrical connector |
| US11897583B2 (en) | 2020-04-22 | 2024-02-13 | Kai Concepts, LLC | Watercraft device with hydrofoil and electric propulsion system |
| US10946939B1 (en) | 2020-04-22 | 2021-03-16 | Kai Concepts, LLC | Watercraft having a waterproof container and a waterproof electrical connector |
| US11485457B1 (en) | 2021-06-14 | 2022-11-01 | Kai Concepts, LLC | Hydrojet propulsion system |
| US11878775B2 (en) | 2021-07-13 | 2024-01-23 | Kai Concepts, LLC | Leash system and methods of use |
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Open date: 20100623 |