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| Number | Title | Issue Date |
| 8025303 | Bicycle equipped with a chainset/crank-arm system A device for assembling a bicycle equipped with a pedal crank system to improve the mechanics of the kinetic energy put in by the rider by simplifying the movement of the rider's feet into a reciprocating up and down movement. It consists of right and left cranksets... | 09/27/2011 |
| 7878520 | Overdrive system for four-wheel bicycle Disclosed is an overdrive system for a bicycle, which increases the speed through use of a combination of a plurality of sprockets and ratchet wheels, and which drives with less power where a user steps on a pedal of a drive lever using the principle of a lever as o... | 02/01/2011 |
| 7823898 | Multiple speed chainless drive for a utility tricycle with either torque amplifying pedal beams or a conventional bicycle seat and pedals The improved chainless drive of the present invention features a four speed planetary transmission housed within the hub of the driving wheel of an utility tricycle, and an vehicle frame which provides two options for delivering power to the transmission. In the fir... | 11/02/2010 |
| 7753387 | Bicycle stepping apparatus A bicycle stepping apparatus to increase the moment of force and save manual stepping labor has a stepping means located between a sprocket and a crank of a bicycle. The stepping means has a socket wrench which has a hub on one end with ratchet teeth formed thereon ... | 07/13/2010 |
| 7510201 | Lever enhanced pedaling system A bicycle free from the conditions of having any part of the bicycle in the area between its wheels or horizontally adjacent to that area, except its pedal member and frontal portions of levers. A bicycle with two lever propulsion (14 and 15) machines ... | 03/31/2009 |
| 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 actuating surfaces disposed substantially in side by side relationship with ... | 05/27/2008 |
| 7370873 | Bicycle drive unit of multi pedaling type The present invention relates to a bicycle drive unit of multiple pedaling modes, comprising a drive shaft on one side having a counterclockwise one-way clutch and a clockwise one-way clutch coupled thereto by means of sunk keys and the drive shaft is engaged with a... | 05/13/2008 |
| 7360780 | Apparatus for hand propulsion and steering of a scooter, tricycle or bicycle An apparatus is disclosed by means of which an operator both propels and steers a scooter, tricycle, or bicycle with a single set of handlebars. Power is applied by pumping the handlebars up and down, and steering is positive, and very similar to that of a conventio... | 04/22/2008 |
| 7341542 | Exercise machine An exercise device providing a fore and aft horizontal component of striding motion that is dynamically user-defined, while providing a vertical component of the motion that is maintained on a predetermined vertically reciprocating path in some embodiments. The exer... | 03/11/2008 |
| 7293789 | Wide power range bicycle with positive intuitive gear shifting system A pedal lever type bicycle includes a pedal lever having a front portion and a rear portion, with an intermediate pivot point located substantially above the center of the rear wheel, and to the rear of the front of the rear wheel. The rear portion of the pedal leve... | 11/13/2007 |
| 7252299 | Steering system for crane A steering system (10) for a vehicle, such as a gantry crane (12). The gantry crane (12) generally includes a support structure (14) having a first front wheel (32) and a second opposing front wheel (36) connected proximate ... | 08/07/2007 |
| 7168724 | Steering system for crane A steering system (10) for a vehicle, such as a gantry crane (12). The gantry crane (12) generally includes a support structure (14) having a first front wheel (32) and a second opposing front wheel (36) connected proximate ... | 01/30/2007 |
| 7140626 | Running exercise bike An exercise apparatus including a seatless frame for simulating running without the stress producing loads associated with each stride. The exercise apparatus has at least one front wheel and at least one rear wheel, both of which are rotationally connected to the f... | 11/28/2006 |
| 7111860 | Treadle scooter A treadle scooter for providing mobility to a user. The treadle scooter includes a frame assembly comprising a front end and a rear end. A steering assembly is rotatably coupled to the front end of the frame assembly and is designed for being actuated for directing ... | 09/26/2006 |
| 7048289 | Human-powered vehicle Apparatus and methods are disclosed for a human-powered vehicle. The vehicle can be a two-wheel, recumbent-style vehicle. The vehicle can be readily disassembled for ease of transport. ... | 05/23/2006 |
| 7011376 | Systems and methods for propelling a vehicle Disclosed are systems and methods for converting linear motion into circular motion. ... | 03/14/2006 |
| 6964424 | Drive system A drive system for use in a bicycle or the like, which includes a manually-operable member and a drive train connected to the member for transferring drive from the member to at least one of the bicycle wheels. The member is mounted for substantially rectilinear rec... | 11/15/2005 |
| 6769706 | Pedal powered scooter The following invention is directed to a pedal powered two wheel scooter. The invention discloses a scooter having a steerable front wheel assembly, a rear wheel assembly and a frame linking the front and rear wheel assemblies. The scooter has a drive mechanism comp... | 08/03/2004 |
| 6746034 | Wheelchair A wheelchair is disclosed that comprises a drive system that includes typically two input members carried for oscillatory movement on a frame of the wheelchair. A transmission is system disposed to mechanically interconnect each input member to a respective main gro... | 06/08/2004 |
| 6715779 | Exercise scooter with stunt features A compact scooter supported by a pair of wheels is propelled by the cyclic operation of a pair of stabilized pedals by a standing user with hands on a handlebar. The elongate pedals having curved ends are connected to a crank and rocker link for predetermined pedal ... | 04/06/2004 |
| 6705630 | Personal vehicle The present invention provides an easy turning and highly accurate personal vehicle. This is accomplished by providing a frame with at least one hubless wheel, wherein the passenger's foot may be contained. As such, the foot may accurately and safely steer and at th... | 03/16/2004 |
| 6663127 | Self-propelled exercise device A self-propelled exercise device such as a bicycle includes a frame having a drive wheel rotatably supported thereupon. The bicycle includes a first and a second foot link which are powered by the user. A coupler assembly directs the first end of each foo... | 12/16/2003 |
| 6659486 | Exercise scooter A compact exercise scooter supported by a pair of wheels is propelled by the cyclic operation of a pair of stabilized pedals by a standing user with hands on a handlebar. The elongate pedals are connected to a crank and guide for predetermined pedal angle... | 12/09/2003 |
| 6619682 | Scooter An occupant propelled vehicle is provided that includes a frame having a front portion and a rear portion, front and rear wheels, a platform, a steering mechanism and a drive mechanism. The drive mechanism may include a drive sprocket mounted on the frame... | 09/16/2003 |
| 6595535 | Bicycle or the like The invention relates to a bicycle and like, having a rear wheel (22) or flywheel, and provided with a pedal group comprising a central shaft and a gear wheel (5) integrally coupled each other, a left crank (1) and a right crank (1), coupled on the two en... | 07/22/2003 |
| 6585277 | Hand powered cart A hand powered cart uses a drive mechanism having a power lever operated by the operator's hands and arms, and is steerable by the operator's feet. The drive mechanism includes a closed drive chain that is given forward motion by a one-way freewheeling po... | 07/01/2003 |
| 6578861 | Reciprocating type driving mechanism A reciprocating type driving mechanism for use for a bicycle, baby carriage and wheel chair, which can provide convenience in driving to the user and which comprises: a front and rear wheels W1 and W2; a gear box B; a driving and driven gears 20 and 30 an... | 06/17/2003 |
| 6554309 | Bicycle pedaling power unit with leverage shifting A system for powering vehicles such as bicycles using leverage type pedals each connected to a freewheeling sprocket and then connected to a common drive shaft in the rear of the vehicle. A keyed shaft connects all free wheeling sprockets and provides for... | 04/29/2003 |
| 6478322 | Bicycle with propelling mechanism This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A sliding part is provided with a dust cover or a brush to prevent dust and the like from being entered therein and to remove the dust, if en... | 11/12/2002 |
| 6402173 | Gravity tricycle A gravity tricycle is driven by a power-saving drive device. The drive device includes first and second pedals, which have drive rods respectively connected to bottom edges thereof, front ends of the drive rods being pivotally disposed on a pivot shaft at... | 06/11/2002 |
| 6398244 | Propelling scooter A propelling scooter includes a chassis, an upright head tube with a handle, a front wheel, and a rear wheel. An elongated pedal is disposed swingably on the chassis. A horizontal transverse first shaft is journalled on the chassis, and is connected fixed... | 06/04/2002 |
| 6361479 | Recumbent total body exerciser A recumbent apparatus for exercise and physical therapy providing a lower body workout, an upper body workout and cardiovascular conditioning, the apparatus comprising a frame having a forward end and a rearward end, the frame generally defining a longitu... | 03/26/2002 |
| 6349956 | Bicycle This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A sliding part is provided with a dust cover or a brush to prevent dust and the like from being entered therein and to remove the dust, if en... | 02/26/2002 |
| 6340067 | Bicycle equipped with drive assist A pedaling force detection means can be simplified in arrangement, the number of assemblies thereof can be decreased, the pedaling force detection means can be made inexpensive and can detect a pedaling force reliably. A bicycle comprises a drive assist a... | 01/22/2002 |
| 6325400 | Treadle-type vehicle body forward drive structure A treadle-type vehicle body forward drive structure comprised of a base plate, a transmission assembly and a treadle structure installed onto the base plate, a gear assembly enmeshing the transmission assembly to the treadle structure, and a position limi... | 12/04/2001 |
| 6315313 | Energy storing bicycle Energy storing bicycle comprises: a fluid reservoir accommodating a fluid having a predetermined viscosity compressible for storing pressure energy, to which at least one supply pipe and at least one return pipe are connected; at least one pressure pump w... | 11/13/2001 |
| 6199884 | Helical drive bicycle A bicycle with a drive mechanism using reciprocal rectilinear pedal motion to propel a pinion gear against a crown gear face associated with a rear bicycle wheel, rotating the rear wheel. The pinion gear receives motion from a helical member surrounded by... | 03/13/2001 |
| 6189907 | Treadle cart A treadle cart, having two axles, each axle having one of two pairs of wheels mounted on it, the treadle cart being powered by the pivoting motion of a treadle board which transfers the power from the pivoting of the treadle board through a drive means in... | 02/20/2001 |
| 6173981 | Pedal-operated vehicle The invention disclosed herein is a pedal-operated vehicle comprising: a frame; a front wheel and a rear wheel, the front and rear wheels being rotatably mounted to the frame; first and second independently operable pedals reciprocatingly mounted to the f... | 01/16/2001 |
| 6173986 | Rowing arms driven wheel chair A wheel chair is provided, including a wheel chair frame including a seat portion, an axle structure and two lateral wheels mounted to the axle structure for rolling the wheel chair over a support surface; and a manual propulsion mechanism including first... | 01/16/2001 |
