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8157280 |
Manually powered drive mechanism with steering member and vehicle employing same
A mechanism for manually powering a vehicle is provided. The mechanism includes a frame and a first driver attached to the frame. The first driver rotates a driven wheel. A lever arm is pivotally...
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8152188 |
Hand grip motion control capabilities for a lever propulsion wheelchair
A motion control system for lever propulsion of a wheelchair enables a number of different manipulations at the hand grip of the lever. In some embodiments, as many as five user-controlled...
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8016310 |
Wheelchair retrofit assembly with multiple dimensions of adjustment
An assembly for attachment of a propulsion system to a wheelchair frame includes a clamp which remains fixed to the frame, while an attachment device that enables three dimensions of adjustability...
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7832753 |
Gear shift bar at a wheel for a vehicle
A gear shift pertaining to a hub of a wheel with a quick lock. The hub has a gear which is supported round a shaft with an outer end and an inner end. The inner end of the shaft is suspended via a...
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7780179 |
Drive system for a human powered vehicle
A drive system (3) for a human powered vehicle. The drive system (3) includes at least one input member (31), a transmission system (21) arranged to convert movement of the input member (31) to...
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7753386 |
Steering mechanism and method for a manually powered vehicle
A steering mechanism and method for a manually powered vehicle are provided. The steering mechanism includes a stem. An inner shaft freely rotates within the stem. A first end of a first cable and...
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7641210 |
Hand-driven wheelchair
A hand-operated assembly that supplies secondary drive power and steering control to a secondary drive wheel of a wheel chair. The assembly comprises a handle that is controlled with one hand and a...
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7556274 |
Manual wheelchair drive system
A system for providing a wheelchair user access to forward, neutral and reverse movement while maintaining a continuous grip, silent operation, and allowing for small rotational movements of the...
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7520519 |
Manually driven wheelchair
A wheelchair includes a standard foldable frame for supporting a seat with a first and second drive wheel driven by drive levers. Each wheel has a transmission providing for three forward speeds...
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7413206 |
Extra hand powered bicycle
A drive system for use with a bicycle includes first and second gears arranged so that the second gear is rotatably driven responsive to the first gear. A freewheel is operatively coupled to the...
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7396031 |
Mobility device
A mobility device for use by the elderly or disabled persons, that does not require standing, balancing or walking and is propelled by leg paddling of a user, is disclosed. The mobility device...
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7392868 |
Device at handtruck
Tiller truck provided with force transmitter in order to transmit a pumping movement with the tiller to the wheels via a coupling in order to facilitate the movement of the truck. The coupling is...
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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...
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7344146 |
Quadracycle
The improved wheelchair employs the use of two push levers attached to two forward drive gears, and two reverse drive gears, which propel the two main rear wheels of the chair through bicycle...
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7303202 |
Apparatus for the transfer of linear human power to a rotating member
An apparatus for the transfer of linear human power to a rotating member is disclosed, which is adaptable to exercise equipment, wheeled chairs, scooters, bicycles, tricycles, etc. The hands of the...
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7195264 |
Manually powered vehicle having improved steering
A manually powered rowing vehicle is provided. A chain is wrapped around a portion of first and second free-wheel wheel sprockets, which can spin freely in one direction but not the other. The...
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7077415 |
Hand-driven vehicle
A vehicle body is provided with a rear wheel at a rear portion, and a front wheel coupled to a handle post. A swing-enabling shaft is rotatably provided on the upper portion of the handle post. A...
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6764089 |
Manually powered drive mechanism and vehicle employing same
The present invention provides a manually powered rowing vehicle. In one embodiment, a chain wraps around a portion of first and second free-wheel wheel sprockets, which can spin freely in one...
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6755430 |
Wheelchair drive assembly
A wheelchair drive mechanism having a transmission providing forward, rearward and neutral motion through movement of a drive arm in an arcuate path.
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6672607 |
Mini scooter
A mini scooter includes a wheel member, a wheel support member, a steering rod, a steering rod support, a wheel cover plate, and a pedal. The wheel member includes a wheel with a transmission ring...
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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...
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6502843 |
Anti-reverse system for twist vehicle
A twist vehicle includes a vehicle frame, a steering unit, a twisting unit and a connecting member in which when subsequent clockwise and anti-clockwise movements are imparted to the steering unit,...
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6450518 |
Wheelchair
A wheelchair including three component parts: a propulsion means, a support means provided with means for receiving the legs of a chair, and a chair. The propulsion means is removably engaged with...
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6371502 |
Universal conversion kit for human powered wheelchairs
The present invention provides an economical, universal wheelchair conversion kit which offers two, hand-powered, variable-resistive, drive mechanisms for the main wheels of a wheelchair which can...
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6311998 |
Geared scooter
The present invention relates to a geared scooter comprising a deck assembly, a handlebar, a front wheel assembly and a rear wheel assembly. The front wheel assembly and the rear wheel assembly are...
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6301760 |
Method of selectively altering physical properties of an elastane filament
The physical properties of an elastane, i.e. spandex, filament may be selectively altered basically by stretching the filament to a selected degree while heating the filament to a selected...
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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...
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6007082 |
Wheelchair driver and braking system
A wheelchair driver having a simple, efficient structure is mountable to a horizontal frame extension of a wheelchair between a wheel and the wheelchair's frame. The driver is mounted directly to a...
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5997020 |
Driving device
The arm-driven vehicle has a drive mechanism comprising a driving member. A movable chain attachment is secured to the driving member and the chain attachment has spaced apart fork legs and a rod...
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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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5762350 |
Hand operated wheel chair or exercise machine using racks operated by variable length lever
This improvement is for a hand operated wheel chair or exercise machine. The machine uses two racks to operate two one way clutches to furnish forward motion from both the forward and backward...
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5690346 |
Human powered drive-mechanism with versatile driving modes
A frame (12) supporting two oscillatably movable members (16R) and (16L) for arms, and two reciprocally movable members (18R) and (18L) for feet. Cables (36) going off in pairs from each of the...
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5632499 |
Wheel chair system
A wheel chair system including a pair of levers mounted to each side of an operator seated in the wheelchair, each lever having a handle which the operator can articulate between a position aligned...
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5328195 |
Bicycle having arm assisted drive
A dual drive bicycle includes an arm powered drive assembly including a drive mechanism mountable on one of the bicycle wheels or on the foot powered crank mechanism. The drive assembly includes a...
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5308097 |
Mechanism to convert the front idle wheels of bicycles in general into drive wheels
A mechanism temporarily convert the front wheel of bicycles into a driving wheel, comprising a lever (5) hinged in front of and on top of the frame; the handlebar (E) is fixed to the lever together...
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5272928 |
Apparatus for the transmission of power to a rotating member
The provision of power by the human body to bicycles, tricycles, exercise equipment, wheeled chairs or the like is effected using a hand-operated lever (35) and/or a pair of pendulums (23). The...
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5236398 |
Wheelchair drive apparatus
A drive apparatus and method for continuously transmitting power to an axle to rotatingly drive the axle are disclosed. The drive apparatus includes a flexible ratch such as a flexible chain, belt,...
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5209506 |
Vehicle with combined propulsion and steering mechanism
The rider powered vehicle has two steerable front wheels, each with a turning arm, and a single rear drive wheel. Power transmission means is provided between the rear wheel and a single push-pull...
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5039122 |
Bicycle auxiliary power unit
A bicycle auxiliary power unit is provided wherein hand powered levers provide a mechanical means for transposing the natural power strokes of the rider to the mechanism propelling the vehicle. The...
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5020815 |
Self-propelled, steerable wheelchair
A retrofitable attachment for easily and quickly converting most conventional wheelchairs into self-propelled, steerable wheelchairs. The invention includes a drive arrangement easily attachable to...
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4925200 |
Tricycle drive mechanism
The vehicle and drive mechanism includes a vehicle frame having at least one steerable wheel carried thereon, an axle mounted on the frame and at least one driven wheel mounted on the axle. First...
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4900045 |
Alternative bicycle drive device
An alternative drive device for a bicycle comprising a drive wheel assembly having two drive shafts and a drive wheel with dual rachet assemblies therein; vertical frame for mounting the drive...
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4886287 |
Row bar-actuated land vehicle
A wheeled vehicle of the row bar-type for propelling a rider on the vehicle in response to upper body exercise of the rider producing a rowing motion on the row bar includes a frame for supporting...
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4840076 |
Lever drive apparatus
An apparatus for propelling a wheeled vehicle which has a hand-manipulated lever that is connected to a clutch assembly. The clutch assembly has a drum that is rotatably connected to the vehicle...
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4811964 |
Wheelchair propelled by rowing
A wheelchair propelled by rowing action includes a wheelchair frame with a pair of large main rear wheels connected by an axle, a rowing lever pivotally connected to the frame, a steering shaft...
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4798395 |
Cycle apparatus having therapeutic and utility aspects
An exercising, recreational and utilitarian apparatus, particularly useful for persons handicapped as to use of their lower limbs or having cardio-pulmonary or ancillary physical problems,...
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4796907 |
Muscle-power-driven vehicle
A chain-propelled vehicle is driven forward by pulling a spring-biased lever to which the chain is attached. The vehicle is steered by feet of an operator and has a steering-box geometry which...
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4762332 |
Wheel chair
A wheelchair having a propulsion and speed change mechanism, the mechanism has a clutch with a cam clutch (21) and a cylindrical fly wheel (23) installed on a hub (24) of the shaft (25) of the main...
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4735431 |
Wheelchair
A wheelchair is propelled by movement of a pair of normally horizontal handles which are pivotally mounted on either side of the chair. Up and down movement of the levers drives a clutch which in...
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4708356 |
Human powered vehicles and mechanism particularly useful therein
A human powered vehicle comprises a chassis supported on a pair of front wheels and a rear wheel; a front seat for supporting a front occupant in a supine position at the front end of the chassis...
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