Class 280/248 - With gearing

Subclass of Class 280 - Land vehicles
Definition: Vehicles in which a gearing system is interposed in the
No. of patents: 26
Last issue date: 08/19/2008

Number	Title	Issue Date
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 second gear, and a drive sprocket is operatively coupled to the freewhe...	08/19/2008
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 comprises a pair of base members, an inverted U-shaped member disposed be...	07/08/2008
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
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 chains connecting the front drive gears to sprocket clusters mounted on th...	03/18/2008
7341266	Portable folding robotic system A portable robotic system having a folding carriage is disclosed. The carriage in one embodiment includes two legs and a lateral stabilizer. The folding legs and stabilizer allow the carriage to be maneuvered into a plurality of open and closed positions. In the ope...	03/11/2008
7281724	Wheeled work chair A wheel work chair has all the attributes and style of an office chair but is equipped with wheelchair-type supporting wheels The chair is height adjustable with the upper portion of the chair moving relative to the lower portion of the chair. Wheels connected to th...	10/16/2007
7223210	Quad cycle and exercise machine This invention is a quad cycle and exercise apparatus with arm and foot power as propulsion. The rider is upstanding during operation. ...	05/29/2007
7178812	Container lift and transport cart A hand cart for lifting and transporting containers that have hand grip apertures or handles in their sides or ends, or have an inverted U-shaped rim surrounding an open top end. The cart has a base with wheels rotatably mounted at respective laterally opposed ends ...	02/20/2007
7021639	Bicycle of type driven by operation of handle Disclosed herein is a bicycle of the type driven by operation of a handle. According to the present invention, a shaft rod of the bicycle is installed with a hinge so as to enable the handle to rotate forward or backward. The handle is bent by a constant angle on th...	04/04/2006
7000934	Bicycle propulsion system The disclosure herein provides a two-wheel bicycle system wherein a pair of long levers are arranged on the cross-beam of the frame, to provide the fulcrum for the motion of the levers. The tops of the levers comprise handles perpendicular to such levers, with linka...	02/21/2006
6942416	Device for attaching a handle A device for attaching a handle or handlebar to a portable tool to be adjustable about two parallel axes in order to increase the range for the adjustments of position of the handle or handlebar relative to the tool. The device can also be used with existing tools.	09/13/2005
6932370	Human-powered, ride-on vehicle A human-powered, ride-on vehicle, includes a main longitudinal frame member having a steering/drive mechanism mounted thereon for oscillating movement; a driven rear wheel having an axle, a rear sprocket operatively fixed to the rear wheel for coastable engagement t...	08/23/2005
6902177	Mobility assistance vehicle A human-powered vehicle comprising a structural frame, two front wheels mounted to a forward portion of the frame for rotation, a seat secured to the frame, the seat positioned between the front wheels and adapted to pivot about a seat pivot axis, and a steerable re...	06/07/2005
6715780	Wheelchair A manual wheelchair system comprising of a pair of lever arms positioned on each side of the chair that actuate a propulsion system located entirely under the seat of the wheelchair. Both the push and pull stroke of the levers, unlimited by stroke angle, provides un...	04/06/2004
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 in the center, and a unidirectional rotary bearing, a pivo...	01/06/2004
6352274	Occupant propelled land vehicle A three-wheeled occupant propelled vehicle is described. A seat is centrally suspended on a longitudinal axis, so that by leaning from side to side, the occupant may impart a steering motion by way of linkages between the seat and the steered front wheels...	03/05/2002
6105985	Hand and foot powered bicycle The hand and foot powered bicycle has an elongated frame supported by a front and rear wheel. A handle bar lever is mounted to the frame adjacent to the steering column such that the handle bar lever may be raised and lowered by moving the attached handle...	08/22/2000
6047980	Two-speed manual wheelchair A manual two-speed wheelchair having a chair, frame, fixed wheel axles, and wheel assemblies. The wheelchair is capable of driving in a direct (1:1) power mode and a lower gear mode without shifting. A separate secondary input assembly provides for reduce...	04/11/2000
6024369	Specialized wheelchair for a paraplegic fencer A fencing sports wheelchair includes a seat (1) mounted to a base (2). A pedestal (3) underlying the base such that the base is selectively rotatable. A platform (10) having an upper surface to which the pedestal is affixed and having a lower surface. At ...	02/15/2000
5713590	Hand propelled velocipede, quadricycle A vehicle has two steerable front wheels and two rear wheels that are driven by fore and aft motion of a handlebar atop a pivotted column assembly. Rotation of the handlebar steers the front wheels through a closed loop pretensioned push pull wire cable. ...	02/03/1998
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 means for transmitting the human force of the user to the rear...	02/20/1996
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 and steerable handlebar mounted in a column assembly suppo...	05/11/1993
5092582	Sporting and exercise apparatus The invention concerns a sporting and exercise apparatus movable by muscular force including a frame having for the user an elongated platform supported by at least two wheels and a mechanical hand lever-drive for converting a lever motion into a rotary m...	03/03/1992
4982808	Viscous shear coupling A viscous shear coupling, comprising a first part in the form of a housing (2), a second part (3) disposed within the housing to define an annular closure therebetween, a first set of annular plates (11) in the enclosure secured for rotation with the firs...	01/08/1991
4818373	Process for upgrading tar and bitumen A method for updating a concentrate of tar sands bitumen containing fine mineral matter and optionally coarse mineral matter in which solvent-diluted bitumen is contacted for a short time in a riser with hot attrition-resistant substantially catalytically...	04/04/1989
4584889	Drive mechanism for occupant propelled vehicle and the like A drive mechanism for bicycles and other devices, comprising a rotary crank shaft having radial crank arms, oscillatory guides or ways spaced from the axis of the crank shaft, crossheads shiftable in the guides, and connecting rods connected between respe...	04/29/1986

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Class 280/248 - With gearing