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| Number | Title | Issue Date |
| 7866672 | Skate propulsion mechanisms Skate propulsion mechanisms are provided. In some embodiments, skate propulsion mechanisms comprise: a base plate; a drive wheel couple to the base plate; a shoe plate to which a user's foot can be coupled, which shoe plate can be moved relative to the base plate in... | 01/11/2011 |
| 7744100 | Truck assembly for a skateboard, wheeled platform, or vehicle A method of propelling a wheeled platform, which includes creating a source of energy upon a first change in orientation of the platform relative to an axle housing of the wheeled platform by rotating the platform around an axis approximately parallel to a longitudi... | 06/29/2010 |
| 7568706 | Mechanism for conversion of vertical force to a torque and motive device and method employing same A mechanism for the conversion of a force applied in one direction to a rotational force. The rotational force may provide for movement in a second direction. The system utilizes mechanical parts and the movement of these parts to convert the directional force to a ... | 08/04/2009 |
| 7547021 | Propelled bicycle with automatic transmission An automatic transmission bicycle including a bicycle frame, a chain ring, a pair of pedals, a wheel, and a plurality of gears coupled to the bicycle frame. The plurality of gears has a plurality of gear combinations defined by at least two gears cooperatively engag... | 06/16/2009 |
| 7374209 | Ice skate with elastic suspension An ice skate comprises a horizontal platform and a pair of opposing side brackets perpendicularly secured to an underside of the platform. A pair of opposing extension arms is pivotally engaged with each end portion of the side brackets, and an extender bracket is e... | 05/20/2008 |
| 7318361 | Thrust return mechanism The thrust return mechanism (4) is intended for a thrust return pedal. It includes an electric motor (28) for the positioning of a control member (30) by the intermediary of transmission elements. The transmission elements include at least one c... | 01/15/2008 |
| 7314223 | Brake device and wheel assembly for skateboards A skateboard includes a deck and a plurality of trucks connected to an underside of the deck. Each truck includes two shafts and two wheels are rotatably connected to the two shafts. At least one active device is connected to a top of the deck and controlled by user... | 01/01/2008 |
| 7300065 | Body weight-activated scooter A body weight-activated scooter having a rear, vertical chassis section and at least one front steering wheel mounted on a front chassis section and at least one rear drive-wheel, the scooter provided with a pair of systems substantially in alignment with a vertical... | 11/27/2007 |
| 7232130 | Rear drive assembly for a snow bicycle A rear drive assembly for a snow bicycle includes a body adapted to be supported by an axle which rotatably supports a rear wheel of a bicycle. An upper arm is rigidly affixed to and extends upwardly from the body. A lower arm is rigidly affixed to and extends at an... | 06/19/2007 |
| 7178814 | Sport board A sport board and a shock absorption system therefor, includes a glide board used in snow and aquatic sports or a roller or skate board, a rocker platform mounted in a seesaw fashion atop the sport board, whereupon opposite ends of the rocker platform may alternatel... | 02/20/2007 |
| 7172044 | Self-propelled wheel board A wheel board comprising a wheel (2) with a diameter of 0.2 to 0.6 m mounted on a free wheel (21), mounted on an axle (3) situated on a vertically pivoting arm (4) arranged on the board (1), and mounted freewheeling and driven by a... | 02/06/2007 |
| 7165774 | External wheeled heeling apparatus and method An external wheeled heeling apparatus for walking and running and transitioning to rolling on a surface is provided. The apparatus includes a sole having a forefoot, an arch and a heel portion provided with a first side of the heel portion and a second side of the h... | 01/23/2007 |
| 7165773 | Heeling apparatus and method A heeling apparatus includes a shoe with a unique feature in the heel that allows one to walk, run, or roll seamlessly. The appearance is that of normal footwear because of the covert wheel assembly. The stealth wheel in the heel gives one the ability to roll or sli... | 01/23/2007 |
| 7163210 | Training device for wheeled vehicles In accordance with one embodiment of the present invention there is provided a vehicle with a training device for use on a skateboard. The training device includes an assembly disposed about one of a plurality of axles of the skateboard. The assembly has a transfer ... | 01/16/2007 |
| 7077414 | Self propelled scooter The present invention relates to a scooter that is self propelled with a uniquely designed spring winding propulsion system. Using a system of interrelated gears and sprockets, the propulsion system is automatically rewound as a user manually propels the scooter. Ac... | 07/18/2006 |
| 7073805 | User-propelled riding toys and methods This invention is a user-propelled riding toy. A platform on which a user stands is supported by a steering mechanism that transfers a directional force from the platform; and a geartrain mounts to the wheels. The geartrain is adapted to receive a downward force fro... | 07/11/2006 |
| 7063336 | External wheeled heeling apparatus and method An external wheeled heeling apparatus for walking and running and transitioning to rolling on a surface is provided. The apparatus includes a sole having a forefoot, an arch and a heel portion provided with a first side of the heel portion and a second side of the h... | 06/20/2006 |
| 7036829 | Retractable skates and method therefor A retractable skate and method using armatures that extend for skating and retract for walking. It is preferred that the armatures may be locked into position. It is also preferred that the armatures fasten to a pair of wheels, a frame holding a configuration of whe... | 05/02/2006 |
| 6979003 | Heeling apparatus and method A heeling apparatus includes a shoe with a unique feature in the heel that allows one to walk, run, or roll seamlessly. The appearance is that of normal footwear because of the covert wheel assembly. The stealth wheel in the heel gives one the ability to roll or sli... | 12/27/2005 |
| 6626442 | Rolling foot apparatus with motion-conversion mechanism A rolling foot-powered apparatus mounted for movement on rotatable rollers and including at least one upper movable assembly, a lower stationary assembly, and at least one motion-conversion mechanism or an alternatively retractable motion-conversion mecha... | 09/30/2003 |
| 6588784 | Vertical pedal-operated vehicle A vertical pedal-operated vehicle can be driven directly by a driver's own weight. To operate such a vehicle, a driver is supposed to apply his/her own weight to the vehicle by treading his/her left and right foot alternately on a pair of pedals such that... | 07/08/2003 |
| 6467777 | In-line roller skates with power assist roller An in-line skate with power assistance has at least two rollers attached to a base, the at least two rollers aligned to form an in-line axis such that the at least two rollers travel along a surface in essentially a single travel line and a power roller a... | 10/22/2002 |
| 6454280 | Independent suspension system for in-line skates having rocker arms and adjustable springs The present invention provides a suspension system for in-line skates. The in-line skate includes a boot and a tracking system attached to the sole of the boot. Opposing rocking arms that hold the wheels are connected to the tracking system using a trunca... | 09/24/2002 |
| 6336643 | Jump skate A jump skate comprises a boot with a base attachment, a surface engager, and a link/spring mechanism, which uses large spring deformation to boost a skater in jumping. The link/spring mechanism comprises at least two links and at least one spring (coil or... | 01/08/2002 |
| 6237923 | Skate A skate (10) is provided which includes a boot portion having a base portion (14) and a boot (12), a first member (42) pivotably connected at an upper longitudinal end thereof to the base portion (14), a second member (44) pivotably connected at an upper ... | 05/29/2001 |
| 6131933 | Drive mechanism for vehicle A foot driven vehicle utilizing a platform. The platform is motivated on a surface utilizing a foot pedal connected to a crank. The crank further includes an endless surface which is linked to a first wheel supported to the bottom of the platform. An elem... | 10/17/2000 |
| 6065759 | Jump skate A jump skate comprises a boot with a base attachment, a surface engager, and a link/spring mechanism, which uses large spring deformation to boost a skater in jumping. The link/spring mechanism comprises at least two links and at least one spring (coil or... | 05/23/2000 |
| 6007074 | Frictionless noncontact engaging drive skate and skateboard The single-foot drivable skate and skateboard is constituted of the simultaneously steering-driving mechanism, synchronous differential driving mechanism, wheel and board. The simultaneously steering-driving mechanism comprises a universal pedal, the driv... | 12/28/1999 |
| 5839737 | Self propelled skateboard The present invention relates to a self propeller skateboard (10) comprising upper deck (12A) pivotally mounted on a drive shaft (22) having a left drive wheel (18L) securely fastened at a left distal end and a right drive wheel (18R) securely fastened at... | 11/24/1998 |
| 5621984 | Amusement footwear having a resilient sole An amusement footwear comprises an insole, an outsole, and a resilient portion disposed between the insole and the outsole for providing the footwear with a bouncing effect. The resilient portion comprises a plurality of coil springs which are held secure... | 04/22/1997 |
| 5492345 | Self propelled roller skate Spaced frame rails mount a U-shaped frame therebetween, wherein the U-shaped frame is pivotally mounted relative to a first axle mounting a first wheel at a first end of the side rails, with a second axle mounted at the second end of the side rails suppor... | 02/20/1996 |
| 5322312 | User-propelled vehicle A user-propelled vehicle has a wheelchair embodiment and a three-wheeled skateboard embodiment. In the wheelchair embodiment, a foldable frame has a seat for supporting the user and a propulsor movably attached to the frame for allowing the user to pump t... | 06/21/1994 |
| 5310202 | Skateboard A skateboard is provided with a low profile and a simplified mechanism for driving the same without interfering with skateboard steering. A narrow drive belt is entrained about a centrally located pulley integrally mounted on a shaft carrying forward whee... | 05/10/1994 |
| 5280935 | Self-propelled skateboard A footboard of a skateboard is with respect to a respective reference plane which at riding straight (=x plane) is parallel to the riding path (=the ground), and at turning (=x" plane) is with respect to the direction of riding slanted to one or the other... | 01/25/1994 |
| 5224719 | Skateboard A skateboard having a deck; a frame mounted under the deck; a pedal pivotally mounted to the frame substantially below the deck and adjacent a forward portion of the deck; a plurality of wheels and clutch bearing retaining drive wheels rotatably mounted t... | 07/06/1993 |
| 5165708 | Double-foot plate pedaling skate A double-foot plate pedaling skate, comprising two foot plates alternatively pedaled to force three sets of wheels to run. The three sets of wheels include a first set of wheels mounted on the wheel axles of one foot plate at one side, a second set of whe... | 11/24/1992 |
| 5129664 | Pedal-driven roller-skate A pedal-driven roller-skate comprising two pedals alternatively rotated to drive three parallel sets of rollers to rotate forwards or backwards. The rollers have each two pivot holes symmetrically disposed at two eccentric locations. The first pedal is mo... | 07/14/1992 |
| 5056802 | Step action wheel skate A wheel skate is provided including a small diameter front wheel journaled for rotation about an horizontal transverse axis immediately beneath the toe end of the shoe of the skate and a larger diameter rear driving wheel is provided and journaled for rot... | 10/15/1991 |
| 5048632 | Self-propelled device A self-propelled roller skate device comprising two units disposed in parallel, each unit being supported on front and rear pairs of wheels, each of the units includes at least one propulsion system, a steering system mounted on a support and holding stru... | 09/17/1991 |
| 4915403 | Skateboard with mechanical drive A skateboard has a frame (1) on which a petal (7b) is pivotably mounted. When the pedal (7b) is pressed down its movement is converted via a push rod (16), a crank (26) and a toothed segment (29) into a rotational movement which is transmitted to a gear t... | 04/10/1990 |
