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7434489 |
Bicycle drive system
A bicycle drive system includes a front gear face, a rear gear face, a front guide assembly, a rear guide assembly, and a drive shaft coupled to a rear-suspension frame via a rear hub and a crank...
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7146008 |
Conditional access television sound
A digitally encrypted audio signal may be transmitted with an analog television signal. Access to the analog television video signal may be controlled by using graphics overlay techniques. The use...
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6979009 |
Motorized bicycle derailleur assembly
A motorized bicycle derailleur assembly is provided with a motor unit, a derailleur, and a motor linkage. The motor unit rotates an output shaft in first and second rotational directions to shift...
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6959939 |
Electronic bicycle shift control device
A bicycle shift control device is adapted to be mounted to a bicycle equipped with an alternating current generator and a shifting device having a plurality of speed steps. The shift control device...
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6843741 |
Bell crank assembly and mounting bracket for a bicycle hub transmission
A bell crank for a bicycle hub transmission includes a wire connecting bell crank member for connecting to a control wire, an actuator moving bell crank member for moving an actuating member, and...
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6772563 |
Mobile accommodation unit in container form
A mobile accommodation unit in container form for use as mobile hospital or mobile control or command center or the like has a box-shaped main box element and at least one secondary box element. In...
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6695332 |
Bicycle transmission device for unidirectional output from bi-directional input
A bicycle with a forward and backward pedaling system which drives a bicycle forward in either a forward or a backward pedaling. A forward and backward pedaling bicycle which comprises a backward...
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6682087 |
Bicycle computer control arrangement and method
A control system for an automatic shifting bicycle transmission comprises a control unit that communicates with a memory location. The memory location stores a plurality of shift tables. The...
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6588785 |
Pedal powered vehicle
The present invention relates to a vehicle, which is specifically adapted to be used as a bumper car. The vehicle is constructed from a frame that allows the vehicle to absorb and deliver impacts...
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6490507 |
Computer for bicycles and method for obtaining riding information
Computer for a bicycle includes a speed change with a chain transmission, including a plurality of front crown wheels ( 16 ) which can be driven in rotation by a pair of pedal cranks ( 18 ) and a...
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6468178 |
Rear wheel hub with drive train gear assembly, spindle and cranks for use on a bicycle
A rear wheel hub and chainless drive train gear assembly for use on a bicycle having an axle bracket fixed to the frame of the bicycle, a spindle extending axially through the axle bracket and left...
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6419252 |
Traveling and accelerating system for riding a bicycle forward regardless the rotation direction of the pedals
A traveling and accelerating system for bicycles includes a frame having a front wheel at a front part and a rear wheel at a rear part thereof; a pair of pedals fixed at both sides of a shaft which...
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6380731 |
Motor unit with an integrated speed sensor for a bicycle hub transmission
A motor unit is provided for operating an internal hub transmission, and a speed sensor is mounted to the motor unit for detecting a speed signal external to the motor unit. Since the speed sensor...
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6354980 |
Automatic transmission systems for humanly powered vehicles
A shiftable bicycle transmission ( 30 ) is automatically shifted by automatically sensing output power torque of the transmission ( 30 ) automatically converting sensed output power torque to...
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6203041 |
Incline anti-rollback system for wheelchairs
An anti-rollback system allows wheelchair users the freedom of travelling up and down inclines without enlisting the assistance of others to do so and includes a pair of non-rotatable axles fixed...
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6146297 |
Bicycle automatic shift control device with varying shift speeds
An automatic shift control apparatus for a bicycle transmission includes a shift control mechanism for the bicycle transmission and a bicycle speed receiving mechanism for receiving a bicycle...
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6015159 |
Method and apparatus for shifting a bicycle transmission
A bicycle shift control device includes a pedaling force determining unit for determining a pedaling force exerted on a pedaling member and a shift stage determining unit which determines an...
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5976052 |
Differential selection automatic gear change device for pedal vehicles
The present invention is related to a compact automatic gear change device for a bicycle in which all of the sprocket wheels (1) and (2) mesh by means of an intermediate moving element (3) and are...
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5895336 |
Forward-drive apparatus for a bicycle
An apparatus for changing power direction for a bicycle is provided. The apparatus for changing power direction roughly including a shaft housing, a change ring, a carrier, a sun gear and a...
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5893573 |
Rotary handlebar-mountable gearshift actuator for bicycles
A rotary handle gearshift actuator for operating bicycle gears. The gearshift actuator includes a rotatable housing and a stationary housing. The rotatable housing has a planar surface and...
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5865455 |
Wheelchair
This wheelchair employs the use of push levers attached to drive gear sprockets, which propel the main rear wheels of the chair through bicycle chains connecting the front sprockets to gear...
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5865454 |
Electronically controlled speed change device for bicycles
An electronically controlled speed change device for bicycles has an automatic mode of operation in which, at the request of the cyclist for increase or decrease of the speed ratio, the system...
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5667233 |
Bicycle with a change-speed gear arrangement
Described is a bicycle with a gear arrangement in which drive force is transmitted from the pedal crank spindle to the rear wheel by way of a direction-changing transmission and a multi-stage...
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5662347 |
Pedal mechanism for cycle and exercise equipment
A Pedal mechanism for a bicycle or similar piece of exercise equipment is disclosed which allows one to apply a forward force to the drive wheel by simultaneously pressing down on both pedals of...
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5662346 |
Pedal mechanism for cycle and exercise equipment
The invention discloses a pedal mechanism for a bicycle or a piece of exercise equipment which allows one to impart forward motion to the drive wheel of the bicycle through an alternating or stair...
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5655982 |
Hydraulic shifting system for rider propelled vehicle
A shiftable variable ratio sprocket chain drive for rider propelled vehicles, such as bicycles, and for other uses has a shifting mechanism, such as a derailleur mechanism or a gear mechanism, a...
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5622081 |
Multiple speed shaft drive for a bicycle
A multiple speed shaft drive for a bicycle, including: a forward disk having a plurality of concentrically disposed ring gears, wherein the forward disk is connected with the pedal crank of the...
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5611556 |
Speed change mechanism
A speed change mechanism, principally for use on a bicycle, is provided in which a plurality of driving gears and an associated plurality of driven gears are coupled by a plurality of drive chains,...
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5609071 |
Shiftable pedal bearing gearing for a bicycle or the like
A shiftable pedal bearing gearing for use in a pedal bearing of a type having a pedal bearing housing and a crank axle axially traversing the pedal bearing housing and carrying at least one pedal...
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5607171 |
Recumbent bicycle
A recumbent bicycle including a frame having a longitudinal main tube divided into a main tube front section telescopically inserted into a main tube rear section to form an adjustable length...
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5577749 |
Twin gear drive assembly for a bicycle
A twin gear drive assembly for a bicycle comprising a front gear assembly with a plurality of gears for driving the rear gear; for driving the frontal wheel with an associated front derailleur; an...
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5571056 |
Derailleur cable collet
The derailleur cable-collet system is an automatic pedal-rate to wheel-rate adjusting system. Pedal pressure is sensed at the crankshaft hub and electronically compared to pedal-pressure threshold...
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5551315 |
Automatic gear changing system
An automatic electromechanical gear changing system for automatically derailing the endless chain of a multi-speed bicycle from one rear transmission sprocket to another rear transmission sprocket...
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5540456 |
Multispeed hub for a bicycle
A hub for a bicycle can typically have an axle for being non-rotationally connected to a frame of the bicycle, a hub body rotatably mounted about the axle, and a drive element rotatably mounted on...
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5533741 |
Bicylce with a double power train
A bicycle includes a first power train to propel the bicycle forward, a second power train to propel the bicycle forward and backward, and means for setting each of the first and second power...
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5522612 |
Variable speed drive shaft bicycle
A bicycle for converting reciprocal human motion into linear vehicular translation. The inventive device includes a frame supported relative to a ground surface by front and rear wheels. A pedal...
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5520401 |
Step drive cycle
A bicycle having pivotally mounted steps on alternate sides receives a rider straddling the bicycle frame while standing upon the steps. The rider shifts weight from side to side alternately...
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5516132 |
Variable-speed transmission
The invention is a variable mechanical transmission for converting a rotary input into a rotary output. The transmission includes a spindle for mounting, allowing for rotation in response to the...
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5496049 |
Variable drive mechanism for cycle type vehicles
A drive mechanism for a cycle vehicle is disclosed herein for selectively importing a driving force from a pedal operated front gear drive section to a rear gear driven section via a variable...
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5492349 |
Rowing locomotion device
An improved self-propelled wagon of the type having a body including front and rear ends, a front axle pivotally mounted to the front end, a rear axle mounted to the rear end, and a propelling...
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5486016 |
Wheel assembly for a wheelchair, incorporating a change speed hub
For use on a wheelchair, a wheel assembly has a change speed gear mounted in the wheel hub. A handwheel is connected to the input of the speed gear and the output of the speed gear is connected to...
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5480356 |
Speed change device for bicycles
A powered control device for speed change in a bicycle comprises an electric motor directly mounted onto the rear derailleur and is provided with an encoder for detecting the position of the rear...
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5454766 |
Continuously variable transmission having a double eccentric shaft and a worm gear adjusting mechanism
A hybrid transmission provides a continuous range of reduced output speeds in a coaxial relationship about a common central axis within a surrounding cylindrical housing. The input shaft speed is...
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5443279 |
Bicycle and bicycle with multispeed wheel hub
On a multispeed bicycle wheel hub with a sun and planet gear mechanism having at least two multistage planet wheels, the planet wheels are each constructed of two parts, with a first planet wheel...
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5375865 |
Multiple rider bicycle drive line system including multiple continuously variable transmissions
A tandem bicycle drive train system includes a continuously variable transmission installed around each crank spindle driving an input crank spindle journalled in a continuously variable...
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5362081 |
Wheelchair drive system
A wheelchair drive system is described that operatively interposes a plural-speed hub subsystem between conventional rotatable hand wheels and their corresponding drive wheels, thereby providing...
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5342075 |
Variable speed drive for a bicycle
This invention relates to bicycles, specifically to an improved speed changing mechanism for a bicycle. The primary attribute of this invention is the utilization of a pair of pinion shafts and a...
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5303942 |
Shiftable pedal bearing for a bicycle or the like
A shiftable pedal bearing for a bicycle or the like includes a pedal bearing housing supporting a hollow crank axle carrying pedal cranks, and a gear casing with pertaining chainwheel and...
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5251504 |
Automatic transmission
An automatic transmission is provided for driving a rotating wheel having an axle mounted onto a support frame and especially a bicycle frame. The transmission comprises a power input means such as...
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5236403 |
Driving hub for a vehicle, particularly a bicycle, with an infinitely variable adjustable transmission ratio
A driving hub for a vehicle, particularly a bicycle, comprising a hub axle, a hub sleeve enclosing the hub axle, a driver, a friction gear, a coupling arrangement as well as a control arrangement...
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