Matches 1 - 50 out of 157 1 2 3 4 >


Match Document Document Title
9028372 Exercise device with a linear drive mechanism  
An exercise device (20) includes a frame (22) and a drive mechanism (100) attached to the frame. The drive mechanism includes a first shaft (122) having a first fixed gear (128) and a second shaft...
8944452 Non-motorized scooter  
A non-motorized scooter comprising a frame carrying a front wheel assembly, a rear wheel assembly, and a handle bar assembly operatively associated with the front wheel assembly; a first lever arm...
8899605 Pedal-driven roller board  
The present invention relates to a roller board, and more particularly, to a pedal-driven roller board that converts a reciprocating motion of pedals formed on the board into a rotational motion...
8857840 Drive system with contoured cavity  
The present invention is an improved drive system for a personal vehicle comprising: a frame with a steerable front wheel and rear wheel connected to a drive axle connected to a crank arm by a...
8820763 Device of human conveyance  
A device for human conveyance includes front and rear wheels. The rear wheel interfaces to a sprocket/gear through a ratchet drive system allowing forward rotation of the rear wheel responsive to...
8636293 Human powered commuter vehicle  
This invention relates to a foldable vehicle comprising at least three wheels which of one wheel is a steering wheel, a steering handle, a frame connected with the steering element and having at...
8632088 Mobile ergonomic exercise tricycle apparatus and method  
A mobile ergonomic exercise tricycle apparatus and related method of use, comprising: two front wheels; one rear wheel; two front handles, one for each hand of a rider; two pedals, one for each...
8579769 Step-cycling apparatus  
An apparatus comprising, a paddle lever, a hinge joint, the hinge joint pivotally attached to the paddle lever, a hydraulic piston, the hydraulic piston pivotally attached to the paddle lever, a...
8550551 Bicycle seat height adjustment method  
A bicycle seat height adjustment method is provided for changing a height of a bicycle seat. The method includes operating an operating device to output a seat raising or lowering command to...
8540264 Stepper bike  
A four wheel stepper bike having a body with an internal chamber containing a drive mechanism for transmitting power to a wheel, a steering linkage, and a brake. Foot pedal units on opposite side...
8505945 Three-wheeled scooter device  
A human-powered scooter propelled by side-to-side movement of the user. The scooter has a steering mechanism coupled to a front wheel, and two frame arms pivotably coupled to the steering...
8342552 Self adjusting bicycle  
Multiple pivot points on a bicycle frame provide for automatic adjustment of the saddle of the bicycle during usage of the bicycle within a range of positions. The bicycle will normally position...
8322740 Elliptical stroller assembly  
An elliptical stroller assembly including a stroller frame assembly with a stroller assembly mounted thereto, first and second wheel assemblies, a propulsion frame assembly and propulsion...
8272655 Mini bike having pedal as a power generator  
A mini bike for strengthening a leg muscle, and for enjoying amusement and a leisure time is provided. The mini bike having a pedal as a power generator includes: a driver having a first bevel...
8267846 Exercise wheel  
An exercise wheel is provided. The exercise wheel includes a wheel, a first support bar, and a second support bar, wherein a support portion is formed inside the wheel, and the support portion...
8220813 Pedal-driven scooter  
A pedal-driven scooter includes a frame, a head tube, a driving mechanism and two pedals. The pedals can move alternatingly to power the driving mechanism and making the rear wheels to roll....
8220814 Bicycle propelled by stepping motion  
A bicycle propelled by stepping motion comprises a frame, forward and rear wheels, and a steering wheel. A pair of elongate pedals extend rearward from a pivot connection to the frame. An axle is...
8210553 Pedal driving device of standing type bicycle  
An improved pedal driving device of a standing type bicycle includes driving sprockets installed at positions of first and second rotating shafts of first and second cranks respectively, and a...
8201839 Bicycle with bidirectional input and one-way output  
The present invention is applied to pedal vehicles, or mixture of electric and pedal vehicles, or combination of electric and pedal vehicles, especially to a bicycle capable of being pedaled...
8162337 Adjustable crank arms for elliptical bike and method of use  
An apparatus including a frame with a pivot axis defined thereupon; a drive wheel coupled to the frame; a first and a second foot link operably coupled to drive wheel to transfer power to the...
8162338 Self-propelled vehicle propelled by an elliptical drive train with improved stride length  
An apparatus including a frame with a pivot axis defined thereupon, a crank arm bearing at the pivot axis; a first and a second crank arm coupled to the crank arm bearing; at least two wheels...
8128111 Scooter and pedal drive assembly  
An improved two wheeled reciprocating pedal driven scooter has a frame, front steering wheel, rear drive wheel, and rear wheel drive mechanism. The drive mechanism has two reciprocating foot...
8123242 Folding steering column for elliptical bike and method of use  
A foldable steering column of vehicle including a steering member with a steering fork. The foldable steering column includes a base coupleable to the steering fork; a steering tube pivotally...
8061728 Interlocking guide tracks for elliptical bike and method of use  
An apparatus includes a frame with a pivot axis defined thereupon; a drive wheel coupled to the frame; a first and a second foot link operably coupled to the drive wheel to transfer power to the...
8061727 Self-propelled vehicle propelled by an elliptical drive train with adjustable stride length mechanism  
An apparatus including a frame; a drive wheel coupled to the frame; a first and a second foot link operably coupled to drive wheel to transfer power to said drive wheel so as to propel the...
8056915 Stepping scooter  
A stepping scooter includes a scooter body for supporting a rider, a moving system, a driving system and a steering lever. The moving system includes a driving wheel rotatably connected with the...
8029009 Self-propelled vehicle propelled by an elliptical drive train including foot link guide track  
An apparatus including a frame; a drive wheel coupled to the frame; a first and a second foot link, operably coupled to drive wheel to transfer power to said drive wheel so as to propel the...
7988169 Bicycle without seat  
A bicycle according to the present invention comprises of a steering axis and an axle of rear wheel that are attached in one unit with a frame to build a form; a pair of guide members with guide...
7988170 Scooter  
An improved scooter includes a frame, a front wheel, a rear wheel, a stem, a handle, left and right pedal devices, and left and right first driving devices and second driving device. The left and...
7980578 Device of human conveyance  
An application for a device for human conveyance includes a front wheel and a rear wheel. The rear wheel interfaced to a sprocket through a ratchet drive system which allows forward rotation of...
7951049 Training aid for bicycles and bicycle toy  
A training toy and exercise device. A large frame supports a rear wheel and a front wheel. The front wheel is mounted in sized openings in the frame and is controlled by a handle bar. There are no...
7914027 Rocker propelled scooter  
A scooter having a rockable platform upon which the rider stands with both feet. The platform is attached by a chain to one-way sprocket wheels mounted to the scooter rear wheel rotating the rear...
7891685 Scooter driving structure  
A scooter driving structure includes a step member pivotally coupled to a scooter platform and swingable up and down, a first driving module installed at a position corresponding to the step...
7878522 Vehicle with improved flexibility  
A vehicle includes a vehicle frame, a steering rod, a pair of arm units, and a drive unit. The steering rod is coupled rotatably to the vehicle frame. Each of the arm units is coupled pivotably to...
7862062 Non-motorized vehicle  
A non-motorized foot board scooter including a frame, a front wheel and a rear wheel, a steering assembly, and a drive train. The drive train includes a kick arm that rotates the rear wheel when...
7793956 Scooter with driving mechanism  
The present invention provides a scooter with driving mechanism comprising a scooter assembly and at least a driving mechanism, wherein the scooter assembly has a treadle and a rear wheel; the...
7784808 Rear-pedaling standing type bicycle structure  
The present invention discloses a rear-pedaling standing type bicycle structure having a driving means installed at a front end of a bicycle frame and proximate to a corresponding line of front...
7770908 Human-powered engine  
An improved human-powered engine which is actuated by forward and rearward movement of the body to cause extension of a resilient member which serves to provide driving motion to a wheel,...
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...
7717446 Self-propelled vehicle propelled by an elliptical drive train  
A bicycle that includes an elliptical pedaling motion is provided. The bicycle includes a frame, having a front wheel and a rear wheel, and a first and a second foot link guide track. A first and...
7690659 Multi-directional roller disc  
A motor-driven roller disc for multi-directional operation under the control of a user, with a multi-wheeled drive configuration with motorized direct-drive power-train to give a user the ability...
7686317 Ellipticycle with torque amplifying pedal beams and a fully enclosed multiple speed dual rear wheel drive  
An Ellipticycle features a conventional bicycle front wheel assembly which is joined by two parallel lengths of bicycle tubing to a cast aluminum gear case within which a multiple speed...
7686316 Pedal drive mechanism  
The pedal drive mechanism comprises a pedal arm immovably affixed across the secant of a drive gear, with the drive gear and attached pedal arm rotating through a partial revolution during...
7621547 Occupant-pedaled drive mechanism for scooter  
A scooter propulsion mechanism includes a pedal secured to the upper surface of the platform and a rigid link pivotally connected from the pedal to the mechanism components mounted on the bottom...
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...
7487987 User-propelled riding toys with simultaneous pedal recovery system  
This invention is a user-propelled riding toy. A platform on which a user stands is supported by at least two wheels; and a geartrain mounts to the wheels. The geartrain is adapted to receive a...
7419175 Self-propelled treadmill recreational vehicle  
An operator-propelled, four-wheel vehicle uses a treadmill to drive two rear wheels through a bicycle type derailleur and sprocket gear shifter which provides gear changing capability. The front...
7377532 Pedal drive scooter  
A vehicle and in particular a scooter in which there is present a first and a second element separated from each other and movable relative to a base frame, the elements defining respective...
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...
7192038 Foot propelled scooter  
A structure of a foot propelled scooter is described. Because foot propelled scooter is put into motion by using foot oscillation, thus creating an effect of exercise and frolic to the rider. The...

Matches 1 - 50 out of 157 1 2 3 4 >