Retractable Power Drive Surfboard for Wave Foils

Abstract

This new art offers six add on motorized attachments for the benefit of the recent trend of hydro foil surfing wherein said wave hydro foils comprise a mast attached to the bottom side of a surfboard and a fuselage that has a large forward lifting wing and a small aft stabilizing wing and is able to lift a 250 lb man and surfboard approximately two feet above the water surface at slow paddling speeds riding a wave from underneath the water surface wherein said new art enables said hydrofoil surfboard to motor along on flat water at high speeds cruising or fielding for waves then said new art can retract a motorized structure completely out of the water while in motion to allow a surfer to catch then foil ride a wave or an ocean swell without power by means of two types of retractable motorized apparatus wherein the first type has a vertical strut that holds a propeller and cort nozzle in a down position motoring forward wherein said strut can retract horizontally up and out from the water surface wherein this retractable strut type can embody three similar versions. Also the second type has a torpedo shaped fuselage that contains a motor, a propeller and cort nozzle also embodying three similar versions that can travel up the foil mast stopping at said surfboard's bottom surface with the power shut off allowing the remaining under water foil apparatus to glide and free ride a wave or swell as it was designed to.

What is claimed is: 
     
         1 . A watercraft comprising:
 a strut wherein said strut is between 16 and 32 inches in length and wherein said strut is of variable thickness and has a maximum thickness located midway along a chord of the strut; wherein said strut has electric wires built into it   a strut hanger that is connected to the bottom surface of a surfboard wherein said strut is connected to by means of a through bolt that allows said strut to have 45 degrees of movement that enables the strut to stop at a drive or down position or in a glide or up position wherein the hanger has a thickened potion that stops said strut in the drive position parallel to the chord length of a larger strut or foil mast also attached to the bottom surface of said surfboard that comprises a complete wave foil   a fuselage connected to said strut at the opposite end of said hanger that contains a brushless motor, a gear box and a drive shaft that is inside a waterproof grease lube that extends out to a propeller and cort nozzle   a hi torque servo that is connected to said strut by means of a pair of moveable servo arms wherein said servo provides electronic movement to said strut   a surfboard having a body with a top and bottom surface wherein the body of the surfboard is configured to support a surfer lying in a prone position or standing on the top surface wherein the bottom surface is a flat planning surface that is connected to said hanger strut and motorized fuselage in a parallel manner when in it's drive mode to said wave foil mast that is also connected to the bottom surface of said surfboard by means of a thickened mast head and reinforced receiver box built into the surfboard body wherein the surfboard body also houses a lithium battery power means and a control box that extends motor wires out through the surfboard body via a spring loaded motor wire take up box into the strut into said fuselage then connected to said brushless motor.   a wave foil comprising a mast, a front lifting wing, a fuselage and an aft stabilizing wing wherein said wave foil is outlined in Augera U.S. Pat. No. 9,789,935 B1 a stock, store bought item   
     
     
         2 . A second watercraft comprising:
 a strut wherein said strut is between 16 and 32 inches in length and wherein said strut is of variable thickness and has a maximum thickness located mid-way along a chord length of the strut wherein said strut has a drive shaft that runs the length of the strut and has bearings that the shaft rides on   a motor room case that is connected to said strut and drive shaft that houses a brushless motor, a bevel gear set and two cooling fans wherein said motor room case is solidly connected to said strut and shaft and moves with the strut and shaft   a lower gear box with shaft and bearings that connects the strut shaft: to a propeller a cort nozzle at a 45 degree angle   a pivot hanger that is attached to a surfboard's bottom surface and connected to said motor room case by means of a through bolt that allows said shaft strut to have 45 degrees of movement enabling said strut to stay parallel to a foil mast in the down or drive position or moved up to be parallel to the surfboard's bottom surface in the glide position   a surfboard as in  claim 1  that is connected to the pivot hanger that holds the shaft strut parallel to the foil mast in the down or drive position or cut of the water in toe up or glide position that also supports both toe foil mast and the shaft strut and houses said power means and control box as in  claim 1  but has the motor wires connecting into said motor room case via a spring loaded motor wire take up box   a wave foil comprising a mast, a front lifting whig, a fuselage and an aft stabilizing wing wherein said wave foil is outlined in Augera U.S. Pat. No. 9,789.935 B1 a stock, store bought item   
     
     
         3 . A third watercraft comprising;
 a strut wherein said strut is between 16 and 32 inches in length and wherein said strut is of variable thickness and has a maximum thickness located mid-way along a chord length of the strut wherein said strut has a driveshaft that tuns the length of strut with bearings that the shaft rides on   a strut wherein a large bevel gear is connected to the top of said drive shaft peering out the top of said strut wherein said bevel gear connects to a brushless motor's pinion gear when in the down or drive position and disconnects from said pinion gear when in the up or glide position   a fall away mast hanger that is built onto a stationary motor case wherein it has a through bolt that allows the shaft strut to have 45 degrees of movement as h connects the pinion gear to the bevel gear in the down position wherein said hanger has a thickened flat area that sets the shaft strut parallel to the foil mast but also sets the gears in optimum mesh position   a lower gear box with a short shaft and bearings that connects the strut shaft to a propeller and cort nozzle at a 45 degree angle   a motor room case as in  claim 2  except that it is unconnected to said shaft strut and built into a surfboard body at an angle to centralize the weight bias of the overall retractable motorized surfboard foil package wherein the motor shaft going to the pinion gear is waterproofed to keep said motor room case dry wherein a sensor makes sure the motor is off when the gears engage   a surfboard as in  claim 2  except that the motor room case is built into the surfboard body and set at an angle next to the foil mast's holding box and has a direct entry of motor wires coming from the control box into the waterproof motor room case   a wave foil comprising a mast, a front lifting wing, a fuselage and an aft stabilizing wing wherein said wave foil is outlined in Augera U.S. 9,789,935 B1 a stock, store bought item   
     
     
         4 . An apparatus comprising:
 a mast head wherein spacers may be employed to change the angle of incidence of an otherwise one position wave foil wherein adding motorized speed to a stock non-motorized wave foil may cause it to breach the water surface too easily wherein a small adjustment can ease the tendency of said wave foil to climb towards the water surface   a spacer set wherein the angle of incidence could be changed from 0 to 4 degrees comprising two side angle spacers, a top wedge spacer and two spacer keeps per 1 degree of change wherein each spacer set would be molded in different measurements and each spacer set would be sold as a 1 degree kit, a 2 degree kit and so on   a pair of rotating inserts wherein most stock wave foils have already installed   a pair of cupped finish washers that allow a pair of oval head machine screws to sway slightly to the left or the right depending on what angle of incidence is desired   
     
     
         5 . A fourth watercraft comprising:
 a hollow cavity travel mast wherein said mast is between 24 and 38 inches in length and 7 and 9 inches wide wherein said mast is of variable thickness and has a maximum thickness located mid-way along a chord length of the mast wherein a brushless motor, propeller and cort nozzle travel up and down said mast via cables pulling a stainless steel plate that travels up or down carrying said propeller and cort nozzle wherein a slot is cut out of the aft half of the said travel mast wherein there arc other hollowed out areas that accommodate a travel cable, a three wire brushless motor cable and a set of roller bearings wherein an aluminum extrusion would be the most desirable material to make up said hollow travel mast to achieve necessary rigidity a stainless steel plate that has a 1/16 inch thickness enabling the chord length shape of said mast to remain functional wherein said plate is pulled up and down by a cable and pulley system that includes four pulley wheels and a stainless steel cable that is moved up and down via a travel plate rotor that spins in forward and reverse to coil and recoil said cable wherein said rotor is activated by an electronic sequence controlled hi torque servo. Also a second rotor and servo is used to coil and recoil said three wire brushless motor cable as said travel plate rides up and down said mast carrying a brushless motor, shaft and gear box that are embodied in a waterproofed fuselage that supports said propeller and cort nozzle   a surfboard having a body with top and bottom surfaces wherein the body of the surfboard is configured to support a surfer lying in a prone position or standing on the top surface wherein the bottom surface is a flat planning surface that is connected to said hollow mast that hosts the traveling motor, propeller and cort nozzle wherein said surfboard's body carries a lithium battery array, a control box, a servo driven motor wire rotor, a servo driven travel plate rotor and three pulley wheels placed near an opening at the top of said mast wherein all components are stationed in waterproof cabins   a wave foil comprising said hollow mast, a front lifting wing, a fuselage and an aft stabilizing wing enabling wave or swell riding when said propeller and cort nozzle is in an up position with motor off and gliding. Or fielding waves and flat water cruising with the propeller and cort nozzle in the down or drive position wherein said pulley driven mast traveler motorized foil embodies a custom hollow mast and many moving parts. The three remaining parts that make up the rest of said wave foil are stock, store bought items that arc an cast coast version of foils outlined in Augera U.S. 9,789,935 B1   
     
     
         6 . A fifth watercraft comprising:
 a fuselage wherein said fuselage operates independently of any power source coming from any surfboard's body except to charge its batteries when not in use wherein said fuselage is approximately 30 inches in a chord length from its nose cone to the end of its cort nozzle wherein said fuselage having a cylindrical torpedo shape embodying a thin walled hollow exoskeletal construction that has a central dihedral shaped cavity that accommodates an equal but opposite shaped foil mast wherein said fuselage is able to travel up and down said foil mast at a right angle by the means of two cupped faced hard rubber travel wheels that are programmed to turn at the same speed at the same time to insure that said fuselage travels up and down evenly at said right angle to said foil mast wherein said hard rubber travel wheels are clamped tightly against said foil mast by means of two long clamp bolts that can screw into two threaded inserts imbedded on one side of said foil mast that can separate at a disconnect junction wherein said fuselage can be completely removed by means of flexible material that borders the forward half of said mast travel cavity adjacent to where two battery packs line each side of said mast travel cavity wherein said packs are cast in waterproof composite material and are not removable, however water can exist in a narrow'area between said foil mast and the fuselage cavity wall as well as a small ar ea at either end of said foil mast wherein both travel wheels and two mini motor gear boxes also get wet wherein plastic and stainless steel materials are used wherein a waterproof wall separates said mini motors from said wet areas that employs two grease tubes with O rings surrounding said mini motors shafts entering said wet portions on the other side of said waterproof wall contained in said independent traveling fuselage wherein two dry regions are established by two said waterproof walls whereas the region at the front of said fuselage or nose cone area contains a mini motor, a large battery pack, a radio or Bluetooth receiver, a charger that charges all three lithium battery'packs and a wire terminal that disconnects when said fuselage halves are separated wherein the second dry region is found aft of said mast cavity containing a mini motor, a charging inlet, a brushless motor with a pinion gear and a reduction gear box, a shaft with beatings, a grease tube with an injection nipple and an aft positioned waterproof wall wherein said shaft and grease tube extends out to a propeller and cort nozzle   a surfboard having a body with top and bottom surfaces wherein the body of the surfboard is configured to support a surfer lying in a prone position or standing on the top surface wherein the bottom is a flat planning surface that is connected to a complete three part downturned Hawaiian wave foil via a reinforced mast head box wherein said surfboard contains a lithium battery'array, a control box with charger and a male charging plug that allows said independent fuselage to charge itself when not in use wherein said charging plug connects to the fuselage when said fuselage travels upward toward the surfboard's bottom surface and docks itself   a wave foil comprising a mast, a front lifting wing, a fuselage and an aft stabilizing wing wherein said wave foil is outlined an Augera U.S. Pat. No. 9,789,935 B1 a stock, store bought item   
     
     
         7 . A sixth watercraft comprising:
 a fuselage wherein said fuselage is the same as the said fuselage in  claim 6  except that it is able to dock itself and connect to a battery source while under water enabling it to go into drive mode sourcing a large, long lasting battery source lessening the need for the nose cone battery pack   a mast wherein it has three brushless motor wires molded into it connecting a large battery array in a surfboard to an in line ball bearing brushless motor connection located on the lower left hand side of said mast wherein the female side of said ball connector is built into said mast base that is un-activated until said male side of the ball connector mounted inside the fuselage mast cavity pushes its heavier sprung balls into the lighter sprung plates of the said mast wherein an electrical connection is made   a waterproof electrical connection wherein three steel ball bearings are placed in line soldered to three heavy gauge wires that go out to a brush less motor wherein each connector embodies a male and female side, a non-conducting composite housing that is cylinder shaped wherein said steel balls are ⅜ inches in diameter and the outside diameter of said housing is approximately ¾ inches wherein a male housing has a flat top with a tube attached in its center that accommodates a steel shaft that connects to a steel ball cap that is shaped to hold a steel ball by means of its over center circumference feature that allows each ball to snap fit into said cap and also roll freely once in place wherein said cap has a sufficient grip on said ball to conduct electricity whereas a medium gauge spring pushes said ball and cap toward an open end of said housing that embodies a abrupt narrowing at said open end acting as a stop for said ball, cap and shaft as well as a rubber O ring that is pressure fit to the outside edge of said steel cap and rides up and down sealing in a measured portion of a di-electric grease wherein grease aids in lubricating said up and down movement and can waterproof as well without stifling electric conductivity in thin coatings but can neutralize conductivity in large wads wherein a pair of flexible rubber grease bladders that fill up with the extraneous grease created by the piston like movement, of said housing spring, ball cap and said ball upon its compression stroke wherein said bladders will deflate and push out di-grease back into said cylindrical housing upon its retraction stroke wherein said female side of ball connection waterproof plug is imbedded in the foil mast's lower surface wherein each cylinder shaped plug sits flush with said surface of said mast when said male balls from said fuselage are not pushed into said female side which is also when said 'watercraft is in glide position. Said female side's partially rubber faced copper contact plate is what sits at the surface of said foil mast wherein a dished-out center is a copper contact and as the male hall rolls into said dished-out center while under water said ball pushes out and displaces existing water and makes contact once it is pushed almost half way down when said copper contact plate's backside makes contact with a rubber sided copper pillar that is connected to a brushless motor wire wherein said female side is of basically the same embodiment as the male side wherein it is ¾ inches in diameter and cylindrical shaped with a flat bottom but with no shaft or shaft tube wherein it has an O ring around said copper contact plate to seal in a measured amount of di-electric grease wherein it fills and deflates two grease bladders upon compression and retraction strokes wherein said rubber coated steel spring that pushes on said copper contact plate and is of a lighter gauge than the spring on the male ball contact side allowing said male side to overpower said female side in order to make electrical contact   a waterproof charging plug wherein there is a male and female side that is designed to work with said fuselage outlined in  claim 6  wherein said fuselage is able to dock itself to a male charging plug attached to the underside of a surfboard wherein said charging plug's female side is built into said fuselage flash with its surface wherein both male and female sides of said plug are each 1½ inches long and ¾ inches in diameter wherein the male side of said plug has a non-conductive composite housing with a smaller diameter penetration dowel, comprising a composite band next to a copper band next to another composite band wherein the copper band is soldered to a negative wire that exits said plug housing into said surfboard wherein the furthest end of said plug is a male copper needle contact wherein a positive wire exits said plug housing to a charger inside said surfboard body wherein the female side of said plug mounted inside said fuselage having a rubber membrane that sits flush with the fuselage surface that holds in a measured amount of di-electric grease and has a flapped penetration point that is able to seal back up after said male dowel and needle are withdrawn; wherein also two grease bladders that fill up upon penetration and shrink back upon withdrawal as the grease re-fills said female sides composite housing wherein a female copper tube fastened to said housing accepts the male sides negative copper hand that has a negative wire soldered to it that exits out to charge a battery inside fuselage body wherein a female needle copper contact is also attached to said housing that is rubber sided and is immersed in a cylinder of di-electric grease that has a positive wire exiting to charge a battery pack inside said fuselage body