Abstract: An electric motorized scooter includes a base having a front wheel and a rear wheel on two ends thereof, and a steering tube is rotatably connected to the base and a handle is connected to a top end of the steering tube. Two side wheels are connected to two sides of the base and driven by two motors. An electric differential includes a motor controlling unit which is electrically connected to the two motors so as to respectively control the speeds of the two motors. A steering control device includes an operation device and a steering unit which is electrically connected to the motor controlling unit. When turning the scooter, the two side wheels moves at different speeds so that the scooter can be turned at small angle.

Abstract: A skateboard includes a board member, a front roller, a rear roller, a pair of left and right intermediate rollers disposed between the front and rear rollers, and a driving unit for driving the left and right intermediate rollers. A control unit is operable among a first mode, in which the driving unit is activated to drive the left and right intermediate rollers, a second mode, in which the driving unit is deactivated, a third mode, in which the driving unit is activated to drive one of the left and right intermediate rollers, and a fourth mode, in which the driving unit is activated to drive the other one of the left and right intermediate rollers.

Abstract: The new thing about this invention is that you don't pay one cent to where ever you want to go. You don't have to buy gas or oil. You can use it for many purpose's. If your car is flat you can go and get help. If your car runs out of gas you can go to the nearest gas station and get gas on the motorroller. You can use it for emergencies. It is made of lumber and four tires. The handle bars are made of aluminum or fiberglass. It has a light, horn and a basket. A light in the front and one in the back. It runs 20 miles per hour. Teenagers can carry their books on it. You can engrave your name and address and phone number so if it gets stolen it will be returned. The motorroller works on electricity. It will come with a battery so you can recharge. You will leave it to charge for 10 to 12 hours. When it reaches 12 hours it will automatically shut off.

Abstract: An apparatus for propelling a user over snow. The invention in one embodiment couples a propulsion unit behind a platform such as a snowboard. The propulsion section and snowboard are interconnected by a joint providing multiple degrees of rotational freedom. Preferably, the interconnection further includes one or more springs.

Abstract: A Detachable Drive Unit for a Snowboard includes a low-profile drive belt assembly designed to be mounted underneath a pre-existing, conventional snowboard, and a drive motor which powers the drive belt for propulsion up snow-covered hills or over variable snow-covered terrain. The device is easily removable, compact and lightweight, facilitating its transport in a backpack, allowing the device to remain with the snowboarder while the snowboard is ridden downhill in a conventional manner.

Abstract: An apparatus for propelling a user over snow. The invention in one embodiment couples a propulsion unit behind a platform such as a snowboard. The propulsion section and snowboard are interconnected by a joint providing multiple degrees of rotational freedom. Preferably, the interconnection further includes one or more springs.

Abstract: A rotary feedback mechanism includes a first set of electrically conductive pads mounted to a first member and a wiper mounted to a second member. As the first and second members rotate relative to one another, the wiper sequentially contacts one or more pads of the first set of pads and provides an electrical signal to the contacted pad or pads. The electrical signal is communicated via the pad or pads to a controller, providing the controller with an indication of the angular position of the first member relative to the second member.

Abstract: A height-adjusting device for a handle and a seat of an electric scooter in the invention includes a handle tube and a seat tube respectively extended from a front frame and a rear frame of an electric scooter and both having at least one projection and engagement holes; a handle stem and a seat post both having at least one groove respectively corresponding to the projections of the handle tube and the seat tube, and at least one resilient stopper respectively engaged in the engagement holes of the handle tube and the seat tube. Only to press the resilient stoppers to move the handle stem or the seat post to a required height, and make the resilient stoppers engaged in the engagement holes, thus easily and conveniently adjusting and fixing a handle or a seat at a required position for people of different height to ride the electric scooter comfortably.

Abstract: An electric vehicle handle collapsing device for an electric vehicle includes a fundamental base, a fitting fork tube, a combining member, an operating member, a subordinate rod, a pull spring and a locking device. After the locking device is released and the pull plate of the operating member is pulled upward, the subordinate rod is forced to move upward and disengaged from the front engage notches and then moved in the rear engage notches of the fundamental base by a pulling force of the pull spring. Thus, the handle of an electric vehicle can be collapsed to diminish the dimensions of the electric vehicle, letting the electric vehicle carried about conveniently.

Abstract: A vehicle includes a frame on which are mounted a front wheel, a rear wheel, an engine, a battery-powered motor, and a transmission connecting the rear wheel with the engine and the motor. The motor can be used as a generator so as to transform motive energy produced via the engine into electric energy for storage in the battery. The engine may include a crankshaft, a pulley connected with the transmissions, and a first clutch arranged between the crankshaft and the pulley which does not transmit power therebetween until its angular speed reaches a pre-determined value. The engine includes an automatic starter connected therewith. A second clutch arranged between the automatic starter and the motor switches between a neutral position and an active position whereby the automatic starter is selectively engaged for and disengaged from operation responsive to the motor.

Abstract: A remote-controlled toy skateboard device comprises a skateboard with a deck and front and rear truck assemblies pivotally connected to the deck. A toy figure has a lower body portion that is fixedly connected to the deck and an upper body portion that is connected for rotation with respect to the lower body portion. A torso drive mechanism is operably connected to the upper body portion of the toy figure to rotate the upper body portion with respect to the lower body portion. A steering mechanism is operably connected with one of the truck assemblies to tilt the deck with respect to the truck assemblies to thereby steer the skateboard. A drive mechanism is also operably connected to wheels of one truck assembly to propel the skateboard. A remote-control unit is configured to generate signals to remotely control movement of the toy figure, tilt between the deck and truck assemblies, and the speed and travel direction of the skateboard.

Abstract: A motorized skateboard or skateboard-like vehicle including a deck upon which the user can stand, fore and aft skateboard-like trucks and a drive wheel mounted intermediate the fore and aft trucks. A suspension allows a range of travel above the drive wheel relative to the deck. In one aspect, a biasing means biases the drive wheel away from the deck.

Abstract: A small, motor-driven vehicle has at least one steered wheel and at least one motor-driven wheel with the rider supported between the wheels. The rider directs the steered wheel while applying motor power through a throttle mechanism to the driven wheel. The throttle mechanism includes a driven shaft from the motor contacting the periphery of the driven wheel. This driven shaft has an adjustable diameter. When the driven shaft is adjusted to have a small diameter, the small, motor-driven vehicle is propelled at low speed and high torque with optimum power transmission for proceeding either uphill or over terrain presenting higher resistance to vehicle passage. When the driven shaft is adjusted to have a larger diameter, the small, motor-driven vehicle is propelled at higher speed and lower torque, on the level, downhill or over terrain presenting lower resistance to vehicle passage.

Abstract: A member for mounting a portable power tool to a vehicle, the mounting member comprising a bracket mounted to the vehicle, a collar member integral with the bracket adapted to engage a portion of said tool and position it at an angle to the longitudinal axis of the vehicle, and a member for removably holding the power tool in position on the bracket. When mounted, the power tool engages a rotatable shaft, the shaft in turn being coupled to the driven wheel of the vehicle through a gearing system. The rotational speed of the shaft, and thus the speed of the vehicle, is controlled by the vehicle driver using a remotely mounted hand control. The vehicle has a free wheel assembly, enabling the vehicle to move even when power is not applied to the power tool.

Abstract: An electric scooter includes a board having a seat assembly extending from a top surface thereof and a motor connected to the board and drives a rear wheel connected to an underside of the board. A connection member with a head tube is connected to a front end of the board and a handlebar post rotatably extends through the head tube. A front wheel and a handlebar are connected to two ends of the handlebar post. An acceleration device is rotatably connected to a first end of the handlebar and two switches are connected to two ends of the handlebar such that the motor is activated only when two switch are operated by two hands of the rider.

Abstract: An apparatus for propelling a user over snow. The invention in one embodiment couples a propulsion unit behind a platform such as a snowboard. The propulsion section and snowboard are interconnected by a joint providing multiple degrees of rotational freedom. Preferably, the interconnection further includes one or more springs.

Abstract: A scooter is constructed to include a front fork holding a front wheel, a base frame holding a pair of rear wheels, a coupling plate extended from the base frame and coupled to the front fork, a movable plate inserted through a transverse sliding slot in the rear vertical part of the angled front section of the flat base frame, a link coupled between the front fork and the rear end of the movable plate, and a steering control footplate rotatably supported on the flat base frame and pivoted with a front bottom rod thereof to the front end of the movable plate for enabling the rider to control the steering direction of the front wheel with the foot when riding the scooter.

Abstract: A scooter is constructed to include a front fork holding a front wheel, a base frame holding a pair of rear wheels, a coupling plate extended from the base frame and coupled to the front fork, and a toe-controlled steering control frame coupled to the coupling plate of the base frame and fastened to the front fork for controlling the steering direction of the front wheel with the toes.

Abstract: A vehicle includes a frame, a front wheel mounted on the frame, a rear wheel mounted on the frame, an engine mounted on the frame, a motor mounted on the frame and a transmission connecting the rear wheel with the engine and the motor. A battery is mounted on the frame for providing energy to the motor. The motor can be used as a generator so as to transform motive energy produced via the engine into electric energy for storage in the battery. The engine may include a crankshaft, a pulley connected with the transmission and a first clutch arranged between the crankshaft and the pulley. The first clutch does not transmit power from the crankshaft to the pulley until an angular speed of the crankshaft reaches a pre-determined value. In a first aspect, the engine includes a manual starter connected therewith. In a second aspect, the engine includes an automatic starter connected therewith.

Abstract: The present invention is a retrofit kit that mechanically attaches to a push scooter. The retrofit kit converts the push scooter into an electrically driven scooter. The retrofit kit includes a bracket that may attach to the rear fork of the scooter so that the existing components of the scooter do not need to be modified. Components of the retrofit kit can also be used to originally manufacture the scooter. A motor assembly and a battery are supported on the scooter. The motor assembly includes a roller that frictionally engages and drives the rear wheel of the scooter when an individual activates a throttle assembly. In another embodiment, the motor assembly is located between a floorboard and a rear wheel and a foot brake is located aft of the rear wheel.

Abstract: A device for pulling a skater including a longitudinal frame, handle bars provided at the upper end potion of the frame and a ground engaging drive wheel rotatably coupled to a lower end portion of the frame. A prime mover is mounted on the frame so as to drive the drive wheel, and a unit for controlling a rotational speed of the drive wheel is coupled thereto. An arm having at least one ground engaging jockey wheel is rotatably coupled to one end thereof and in movably connected at its opposite end to the frame in such a manner that the jockey wheel is disposed substantially rearwardly of the drive wheel when the device is in use.

Abstract: A catalytic converter is especially adapted for placement to a motorized scooter. The scooter includes a front steered wheel, a rear driven wheel, and a structural tube extending between the wheels. A motor driving the rear driven wheel has an exhaust emission line. An exhaust tube having first and second open ends is provided. The exhaust tube is mounted through a sidewall of the main structural tube with a first end disposed exterior of the main structural tube and a second end discharging interiorly of the main structural tube. The exhaust tube has a catalytic converter preferably at the second end thereof. A flexible connection is provided between the exhaust emission of the motor and the first end of the exhaust tube. In operation, exhaust flows to heat the catalytic converter concentrically of the main structural tube and the converter operates exothermically at high temperature at the second end of the exhaust tube.

Abstract: A vehicle designed specifically to pull persons standing upright on roller skates, ice skates, skis etc. The invention can be configured to operate on any surface and comprises of an engine driving a wheel or track, connected through a frame to a body pad complete with shoulder and arm supports. The body pad can pivot independently of the frame. Handgrip controls contain actuators for acceleration and braking. The purpose of the invention being to produce a vehicle that allows the operator to be in complete control and to be able to make abrupt turns, accelerate or decelerate, all in an efficient manner. The operator of the vehicle remains in close contact with the vehicle by means of a torso clamp or belt securing the operator to a body pad. The torso clamp or belt can be adjusted to automatically release and disengage the operator in the event of a fall.

Abstract: A brake lever-controlled power scooter control system includes a control unit electrically connected between the battery and motor of the power scooter and adapted to control the operation of the motor subject to the moving speed of the power scooter, and switch means electrically connected between the control unit and the motor of the power scooter coupled to the brake lever of the power scooter to close the circuit between the control unit and the motor of the power scooter when the brake lever is released, or to open the circuit between the control unit and the motor of the power scooter when the brake lever is depressed.

Abstract: A power scooter has a base frame which defines a battery chamber. The battery chamber holds a storage battery, and the power scoter has a footplate on which a power scooter rider stands thereon is pivoted to the base frame and the footplate can be turned relative to the base frame to close/open the battery chamber.

Abstract: A scooter motor assembly for easily attaching and detaching from a scooter. The assembly may include a housing containing components such as a battery and an electric motor. An arm and attachment lever may be movably attached to the housing. The assembly may also include a motor support for attaching to the front of the scooter. The motor support may be configured to allow the housing to move in a vertical direction with respect to the scooter. The housing may be spring biased to allow contact with the scooter front wheel so that the motor assembly is adjustable and can be used with scooters having different sized front wheels. The housing may be easily attached and detached from the scooter by operating the release arm. Thus, the scooter may be used with or without the motor.

Abstract: A skate (10) includes a base plate (11) pivotally carrying a platform plate (14) which can be the sole of a shoe (16). There is an aperture (18) in the base plate (11) so that when the platform plate (14) is adjacent to the base plate (11), a pad (17) on the platform plate (14) extends through the aperture (18) so that the user may walk on the skate (10). A frame (23) carries a drive shaft (20) which carries drive wheels (19). The drive shaft (20) is journalled in unidirectional bearings (21) and has a gear (32) which engages a threaded motor shaft (31) of a motor (27). A collar (38) has threads (37) which engage the threads (36) of a motor housing (33). When the motor (27) rotates in the one direction permitted by the unidirectional bearings (21), the drive wheels (19) will power the skate (10).

Abstract: A skate (10) includes a base plate (11) pivotally carrying a platform plate (14) which can be the sole of a shoe (16). There is an aperture (18) in the base plate (11) so that when the platform plate (14) is adjacent to the base plate (11), a pad (17) on the platform plate (14) extends through the aperture (18) so that the user may walk on the skate (10). A frame (23) carries a drive shaft (20) which carries drive wheels (19). The drive shaft (20) is journalled in unidirectional bearings (21) and has a gear (32) which engages a threaded motor shaft (31) of a motor (27). A collar (38) has threads (37) which engage the threads (36) of a motor housing (33). When the motor (27) rotates in the one direction permitted by the unidirectional bearings (21), the drive wheels (19) will power the skate (10).

Abstract: A power transmission arrangement for kick scooter is disclosed to include a shock absorbing unit coupled between the footplate and rear wheel of the kick scooter to absorb shocks, an engine unit fixedly mounted on the footplate of the kick scooter, and a transmission unit coupled between the engine unit and the rear wheel for transmitting driving power from the engine to the rear wheel to move the kick scooter, preventing the engine from receiving shocks from the rear wheel during running of the kick scooter.

Abstract: An improved motorized folding portable footboard scooter. The rider of the scooter stands upon a scooter platform and directs the scooter. The handle bar folds to facilitate the portability of the scooter. The engine is operationally connected to the transmission, which is operationally connected to the rear tire. Shifting the transmission is accomplished by a control on the handle bar. A smaller lighter engine is used because the transmission allows for the power output of the engine to be optimized for different driving speeds and conditions. The resulting portable motorized foot scooter has greater speed and terrain following characteristics over a non-transmission scooter while still retaining its lightweight portability.

Abstract: A power transmission device for a powered scooter is provided. The power transmission device includes a drive shaft, a driven shaft and two or more timing belt transmission device. The timing belt transmission device includes a first sprocket wheel attached on the drive shaft, a second sprocket wheel attached on the driven shaft, and a timing belt wound on the first sprocket wheel and the second sprocket wheel. The ratio of the diameter of the first sprocket wheel and the diameter of the second sprocket wheel is predetermined to provide a desired speed change ratio. The timing belt may be made of rubber or chain.

Abstract: Three types of free-wheel drive-train systems incorporated under the pedal of skate scooters that enables forward propulsion of the scooters through repetitive up and down foot motions. The drive-train systems of 2 wheel, 3 wheel and 4 wheel exercise step scooters consists of (1) Single Seesaw foot pedal with center pivot, (2) Rear-stepping, Right and Left foot pedals with Front pivot, (3) Front-stepping, Right and Left foot pedals with Rear pivot.

Abstract: A transmission unit for a recreational vehicle comprises: steering arrangement controlled by movement of the weight of the user, driving assembly which includes a free-wheeling clutch, suspension assembly and braking assembly. The vehicle also includes an engine (with gearbox and clutch) and a user support platform, and is adapted for use on any type of land surface, both on- and off-road. The unit is connected between the engine and at least one axle, through a drive. The vehicle may include wheels with balloon tyres as part of the adaption for all terrain capability. A remote control may be remote from the vehicle and hand-operable.

Abstract: The present invention herein relates to a driving control apparatus of motorized scooter comprised of battery, driving unit, and motor, characterized in which the driving unit consists of at least a relay, a start-up and protective circuit, an under-voltage protective circuit, a power switch and speed control circuit, and a braking unit that when the power switch and speed control circuit are on, and the relay is open, user may push the wheels of the scooter manually to drive the motor; when a set speed is reached and the relay is closed, the motor is driven directly, controlling the speed of the scooter; in addition, when the speed of the scooter is below a certain rate, the relay will be opened to stop the motor; at this time, the user may restart the motor by pushing the wheels of the scooter manually to move the scooter forward.

Abstract: A land vehicle has a flexible central frame member which extends from a large front roller to a smaller rear roller, and is encircled by a flexible looped belt having projecting treads. An engine mounted above the belt drives the front roller, and two bogie wheels engage the belt within valleys formed in the treads. Two boot supports are fixed to the central frame member which support the feet of a standing rider. Rollers fixed to the central frame member support the belt as it travels around the frame. The minimal extent of the frame outside the belt exposes a substantial length of the belt edge to engagement with the ground, making it possible to control the vehicle by twisting and tipping, in a manner similar to the control of a conventional unpowered snowboard. A trailer or sled may be connected to the rear of the vehicle for towing cargo.

Abstract: A remote-controlled toy skateboard device comprises a skateboard with a deck and front and rear truck assemblies pivotally connected to the deck. A toy figure has a lower body portion that is fixedly connected to the deck and an upper body portion that is connected for rotation with respect to the lower body portion. A torso drive mechanism is operably connected to the upper body portion of the toy figure to rotate the upper body portion with respect to the lower body portion. A steering mechanism is operably connected with one of the truck assemblies to tilt the deck with respect to the truck assemblies to thereby steer the skateboard. A drive mechanism is also operably connected to wheels of one truck assembly to propel the skateboard. A remote-control unit is configured to generate signals to remotely control movement of the toy figure, tilt between the deck and truck assemblies, and the speed and travel direction of the skateboard.

Abstract: The present invention is an electric scooter having batteries concealed below the standing platform in a multipurpose battery pan, an anti-lock brake, a dual suspension, a stow and carry feature, integrated electronics including brake control, throttle control, safety measures and theft protection. The dual suspension scooter includes a chassis; a steering column; a front wheel rotatably mounted on a front axle assembly; a rear wheel rotatably mounted on a rear axle assembly; a front cantilevered suspension mechanism mounted between the steering column and the front axle assembly; and a rear suspension mechanism mounted between the rear end of the chassis and the rear axle assembly.

Abstract: An electric wheel axle drive structure with automatic clutch function comprised of a direct current drive motor, a driving worm driven into rotation installed at its front side and upper extent, and a driven shaft disposed perpendicularly at the lower extent of the worm, the rotation of which is transferred to wheels conjoined to its outer lateral ends. Sleeved onto the inner section of the driven gear, having an angle that is the same as the spiral angle of the worm and, furthermore, a teeth face width slightly larger than the shaft width of the worm, constituting a contained-type bevel section enmeshment with it, and receiving its driving force is a bevel gear. At the front extent of the bevel gear is a driving mesh disc having distributed laterally faced, annular-shaped, and bi-directional sloped teeth.

Abstract: A land vehicle has a flexible central frame member which extends from a large front roller to a smaller rear roller, and is encircled by a flexible looped belt having projecting treads. An engine mounted above the belt drives the front roller, and two bogie wheels engage the belt within valleys formed in the treads. Two boot supports are fixed to the central frame member which support the feet of a standing rider. Rollers fixed to the central frame member support the belt as it travels around the frame. The minimal extent of the frame outside the belt exposes a substantial length of the belt edge to engagement with the ground, making it possible to control the vehicle by twisting and tipping, in a manner similar to the control of a conventional unpowered snowboard. A trailer or sled may be connected to the rear of the vehicle for towing cargo.

Abstract: A scooter is provided with a power clutch mechanism enabling the scooter to be moved by a motor of the mechanism, or by pushes made by one foot of a rider of the scooter. The mechanism has a drive wheel mounted on an output shaft of the motor which is mounted on a suspension seat. The suspension seat is pivoted to the base of the scooter such that the suspension seat is urged by an urging member of the mechanism to enable the drive wheel to disengage the rear wheel of the scooter, and that the suspension seat is not urged by the urging member to enable the drive wheel to engage the rear wheel of the scooter.

Abstract: An electric scooter having batteries concealed below the standing platform in a multipurpose battery pan, an anti-lock brake, a dual suspension, a stow and carry feature, integrated electronics including brake control, throttle control, safety measures and theft protection. The dual suspension scooter includes a chassis; a steering column; a front wheel rotatably mounted on a front axle assembly; a rear wheel rotatably mounted on a rear axle assembly; a front cantilevered suspension mechanism mounted between the steering column and the front axle assembly; and a rear suspension mechanism mounted between the rear end of the chassis and the rear axle assembly.

Abstract: A scooter has a main frame, two rear bars, a rear wheel, and a rear wheel drive mechanism. The rear bars are disposed on a rear end of the main frame. The rear wheel drive mechanism has a rechargeable battery set, an electric motor, a brake device, a first protective casing, a worm wheel, and a second protective casing. The brake device, the rear wheel, the first protective casing, the worm wheel, and the second protective casing are disposed between the rear bars. The electric motor has a drive shaft and a worm. The worm wheel has a pivot shaft passing through the first protective casing, a one-way bearing, the rear wheel, a main bearing, an auxiliary bearing, and the pivot shaft inserted in the brake device. The worm engages with the worm wheel.

Abstract: An electric-powered scooter is disclosed having a chassis with a platform upon which the rider stands, a front wheel mounted to provide steering control and a rear wheel rotatably mounted at the rear section of the chassis. A pedal is pivotably mounted at the rear section of the chassis and is attached to the motor and drive wheel. The pedal, in an inactive position, holds such drive wheel in a position where it does not contact the rear wheel. When the pedal is depressed by the foot of the rider, the motor is turned on and the drive wheel contacts the rear wheel, propelling the scooter forward. When released, the pedal returns automatically by spring means to its inactive position, breaking the contact of the rear wheel with the drive wheel, and automatically turning the motor off.

Abstract: A method for controlling a motorized balancing transporter that has two wheels in contact with the ground in normal operation. A signal substantially proportional to the shaft velocity is produced, and, at a rate less than 200 times per second, a voltage is calculated based at least on the shaft velocity signal and a specified transporter velocity and a voltage is applied to the motor based on the calculated voltage. A method is also provided for yaw control of the motorized balancing transporter that includes calculating a command to a motor amplifier based on balancing requirements of the transporter and augmenting the command to the motor amplifier based on a specified direction of motion.

Abstract: A power clutch mechanism of a scooter is formed of a power unit, an elastic member, a connection rod set, and an urging member. The power unit comprises a suspension seat pivoted with a footboard of the scooter, and a motor mounted on the suspension seat and provided with an output shaft on which a drive wheel is mounted in such a manner that the drive wheel is detachably engaged with a rear wheel of the scooter. The elastic member connects the suspension seat and a rear fork of the scooter. The connection rod set is formed of a first rod member and a second rod member pivoted with the first rod member by a pivot such that the second rod member and the first rod member form therebetween an angle, and that the first rod member is pivoted with the rear fork, and further that the second rod member is pivoted with the suspension seat.

Abstract: An electrically powered scooter is disclosed having a chassis with a platform upon which the rider stands, a front wheel mounted to provide steering control and a rear wheel rotatably mounted at the rear section of the chassis. A pedal is pivotably mounted at the rear section of the chassis and is attached to the motor and drive wheel. The pedal, in an inactive position holds such drive wheel in a position where it does not contact the rear wheel. When the pedal is depressed by the foot of the rider, the motor is turned on and the drive wheel contacts the rear wheel, propelling the scooter forward. When released, the pedal returns automatically by spring means to its inactive position, breaking the contact of the rear wheel with the drive wheel, and automatically turning the motor off.

Abstract: A power transmission device having at least two one-way clutches is used to transmit the driving force of the power generator to the right and left drive wheels. By this power transmission device, it is possible to transmit the driving force of the power generator to the right and left drive wheels almost half and half when the wheel contact load are the same. While if the drive wheels rotate at a different speed, hardly any driving force is transmitted to the side of the drive wheel which can rotate faster and the driving force is mainly transmitted to the wheel rotates slowly. Accordingly, it is possible to transmit the power without fail to the drive wheel which touches the ground even when the transportation device is curving or slipping, or when one of the wheels parts from the ground.

Abstract: An "all terrain" scooter is provided with a large central tubular chassis having two central brackets supporting a platform. At the rear, the tubular frame is offset to one side of the chassis for cantilevered support of the rear driven wheel. From this portion of the frame, an engine is pivotally mounted on a pivot arm at a pivot point offset from the axis of rotation of the driven wheel. This engine has a protruding driving shaft overlying the driven wheel for moving into and out of contact with the ground contact surface of the driven wheel. The pivot point of the pivot arm is offset relative to a line between the point of contact of the protruding driving shaft and the center of driven wheel rotation. This offset is in the direction of driven wheel rotation at the point of contact of the protruding driving shaft and causes increased driving contact with required increased scooter driving force.

Abstract: A radio controlled skateboarding toy is provided comprising a multi-jointed moveable figurine attached to a motorized skateboard for which steering is controlled through the pivotal movements of the figurine allowing for dramatic realism and high performance stunts. It also features moveable battery packs, changeable motor positions, and interchangeable wheel weights to provide different centers of balance necessary to perform a wide range of maneuvers.

Abstract: A powered roller skate including a foot support, multiple wheels mounted to the foot support, and a motor coupled to at least one of the wheels. The powered roller skate further includes an active control system having a sensor located on the skate and a controller. The controller receives electrical signals from the sensor and electrical signals from the motor, which indicate the state of the motor. In response to those signals and in accordance with a control mechanism, the controller sends electrical signals to the motor to control the operation of the motor.