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| 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 |
| 7341267 | Reversible ratchet mechanism A reversible ratchet mechanism includes a pair of roller clutches set to operate in opposite directions when engaged by a belt. During the forward motion of the ratchet assembly in either direction of propulsion of the belt, one roller clutch is disengaged while the... | 03/11/2008 |
| 7318592 | Motorcycle steering damper According to the invention, there is provided a steering damper (10) in which the interior of a cylinder (12) is divided into two oil chambers (A), (B) by a piston (14) which slides in the cylinder (12) as a steering operation takes place... | 01/15/2008 |
| 7293623 | Assembly of a wheelchair and a reclining cycle An assembly comprising a wheelchair and a reclining cycle part which are connectible to each other with the aid of a coupling, the reclining cycle part comprising a wheel and at least one pedal with which the wheel is drivable, so that the assembly in a coupled cond... | 11/13/2007 |
| 7036512 | Dismountable multi-position stander The dismountable multi-position stander has a carriage, a body support assembly, and a mounting assembly detachably mounting the body support assembly onto the carriage in a single coupling direction. The mounting assembly has upper and lower mounting elements detac... | 05/02/2006 |
| 6916032 | Manually-propelled vehicle and related systems The invention provides a propulsion, braking and anti-rollback control assembly for use in manually propelled vehicles such as wheelchairs. In one embodiment, the invention provides a wheelchair with a control lever assembly and related force conveyance connecter th... | 07/12/2005 |
| 6910701 | Wheelchair propulsive mechanism A wheelchair propulsion system provides a wheelchair user with a continuous input drive path of linear or elliptical shape. The propulsion system includes a Cardan gear system defining a linear reciprocating or elliptical input path over which propulsive force may b... | 06/28/2005 |
| 6669222 | Folding unicycle attachment for a wheelchair A foldable unicycle attachable to a wheelchair to form a hand driven tricycle. The unicycle has upper and lower drive train frames. The means for attaching the unicycle to a wheelchair includes a positioning stand that holds the unicycle and its attachmen... | 12/30/2003 |
| 6557879 | Land rower This is a hand-propelled wheeled device for a rider. The device includes: a frame with two sides; a first and second drive wheel rotatably mounted to the two sides; a first hand crank connected to the first drive wheel through a first crank hub, and a fir... | 05/06/2003 |
| 6409195 | Handcranked rear-wheel axle-driven sport wheelchair A sport type wheelchair. The wheelchair has two rear wheels and a front wheel. A handcrank and a sprocket and chain mechanism provide rear wheel axle chain drive. The steering is front wheel steering, operated with a steering handle attached to the front ... | 06/25/2002 |
| 6276703 | Land rower This is a hand-propelled wheeled device for a rider. The device includes: a frame with two sides; a first and second drive wheel rotatably mounted to the two sides; a first hand crank connected to the first drive wheel through a first crank hub, and a fir... | 08/21/2001 |
| 6270101 | Mobile standing device for use in rehabilitation The invention relates to a mobile standing device for use in rehabilitation. The running wheels of the device are drive-connected to driving handwheels by chain or belt drives. In order to reduce the risk of injury or accident with a standing device of th... | 08/07/2001 |
| 6264224 | Dual drive bicycle A compact, covered front wheel drive assembly that replaces the handlebars on an existing bicycle frame. It drives the front wheel while standard bicycle foot pedals and drive train drive the rear wheel. However, it can also be operated independently of t... | 07/24/2001 |
| 6193253 | Manual operating assembly for a vehicle A hand-operable operating assembly for a vehicle, such as a three-wheeled cycle. The drive mechanism comprises opposing members, such as oppositely oriented crank handles. A sprocket and chain assembly connects the hand crank to the pedal crank on the cyc... | 02/27/2001 |
| 6105986 | Handcycle A handcycle having a hand drive mechanism for powering the cycle which includes an attitude control system having an elastomer member serving as a resilient member to resist leaning forces. The system includes adjustability to accommodate weights of vario... | 08/22/2000 |
| 6099009 | Two wheel drive for bicycle A bicycle has separate chain-and-sprocket drive mechanisms for the front and rear wheels. The front wheel drive includes a cross shaft and a pair of crank arms at the ends of the cross shaft, both of which crank arms extend in the same radial direction fr... | 08/08/2000 |
| 6036210 | Modified prone handcycle A handcycle supports a rider in a forward leaning ("modified prone") position, with the feet of the rider in straps above the rear axle, and the arms hanging generally downwardly toward a pedal assembly. The pedal assembly is generally at about the chest ... | 03/14/2000 |
| 5908199 | Arm propulsion system for bicycles and the like, that may be combined with conventional foot propulsion An arm propulsion system for mounting on a bicycle includes a first crank and a second crank mounted on opposite ends of a connection and rotation pin. These cranks are mounted in a specular position with respect to one another. Hand-grips are connected w... | 06/01/1999 |
| 5853184 | Handcycles A hand-powered vehicle with a device for positioning the crank arms so that the rider can easily adjust them for both vertical and horizontal movement and placement. A device for supporting the rider's legs and feet that combines both a leg support and fo... | 12/29/1998 |
| 5816598 | Two-wheel drive hand and foot powered bicycle A two-wheel drive hand and foot powered bicycle in accordance with the present invention includes a rear wheel that is driven by a foot pedal via a chain and derailleur mechanism. A front wheel is rotatably mounted to the bottom portions of first and seco... | 10/06/1998 |
| 5683321 | Drive apparatus for converting linear motion to rotary motion A drive apparatus and method for continuously transmitting power to an axle, shaft and the like are disclosed. The drive apparatus includes a flexible ratch (414) such as flexible chain, belt or cable and cooperating first and second ratch engaging energy... | 11/04/1997 |
| 5542689 | Bicycle front wheel drive A front wheel drive system for a bicycle which can be installed on a bicycle to drive the front wheel by rocking the handlebars back and forth. A chain positioning and support mechanism is attached to the handlebar of a bicycle. The handle bar is attached... | 08/06/1996 |
| 5520402 | Portable mobile stand A portable mobile stand for a human which uses a pair of side member assemblies with a vertical support member being mounted therebetween. A human occupying compartment is located in the space provided between the side member assemblies. The vertical supp... | 05/28/1996 |
| 5501480 | Auxiliary frame for a wheelchair and wheelchair for use with an auxiliary frame An auxiliary frame for a wheelchair, the auxiliary frame having a coupling assembly for coupling the auxiliary frame to the wheelchair, at least one steerable wheel and a drive assembly. The coupling assembly is formed by a central elongate body provided ... | 03/26/1996 |
| 5465989 | Hand-powered and controlled two-wheeled cycle for the disabled Hand-powered and controlled two-wheeled cycle for use of disabled persons having reduced leg functions. The cycle provides a rapid and efficient means of mobility for leg-disabled persons. A preferred embodiment comprises a cycle having a low rider positi... | 11/14/1995 |
| 5385359 | Stabilization device for front wheel drive bicycles A dual drive bicycle having a hand crank mechanism for applying driving power to the front wheel of the bicycle includes a stabilizer bar attached to a hand crank mechanism frame, the stabilizer bar including a chest saddle against which the rider positio... | 01/31/1995 |
| 5383676 | Centering apparatus for front wheel of three wheeled vehicle Three wheel vehicle apparatus includes a pair of rear wheels and a front driving wheel. The front driving wheel is powered through a hand crank system, and the front, driving wheel is urged to a center, straight ahead position, by a tension spring connect... | 01/24/1995 |
| 5354084 | Hand propulsion and steering dampening for three-wheel vehicle A three-wheeled vehicle having a front body member carrying front wheel seat, hand pedals and leg supports pivotally connected to a rear body member carrying the rear wheels and handlebar. The front body member includes a seat for the operator and pedals ... | 10/11/1994 |
| 5082302 | Hand crank bicycle drive A dual drive bicycle having a steerable front wheel and a rear wheel that is driven. A foot-powered drive system includes a first rotatable shaft extending transversely to the bicycle. A rotatable drive sprocket is operatively connected to a second shaft ... | 01/21/1992 |
| 5022671 | Hand pedalled tricycle with improved steering A hand propelled tricycle has a hand-operated crank assembly mounted to an upper end of a front fork stem coupled to a front wheel supported by the fork. The fork is straight without caster and a set of springs attached between the fork and a tricycle fra... | 06/11/1991 |
| 5013285 | Chain control apparatus Chain control apparatus is provided for a bicycle having a chain journaled around spaced apart gears so as to have an upper run and a lower run wherein the chain control apparatus limits movement of the lower run in directions away from the upper run when... | 05/07/1991 |
| 4858942 | Manually driven bicycle A bicycle has both manual drive and pedal drive assemblies which may be operated simultaneously or independently. The manual drive assembly is connected to the front wheel and the pedal drive assembly is connected to the rear wheel. Both the manual and pe... | 08/22/1989 |
| 4828281 | Convertible car seat stroller A child's safety car seat is set forth selectively convertible into a stroller. In a first configuration, the child safety car seat is formed of two units wherein the first is nestable within the second to enable convenient positioning on a typical automo... | 05/09/1989 |
| 4809997 | Mobile standing aid The mobile standing air has a rectangular base with two main wheels near the rearward portion of the base and two main caster wheels mounted on upward, forward and outward extensions near the front of the frame. Two rearward extensions mount smaller caste... | 03/07/1989 |
| 4807897 | Standing support A standing support having a truncated lower horizontal side frame member has an extension flange mounted thereon to laterally displace the drive wheel assembly outward relative the side frame member to widen the rear facing cavity defined therebetween. A ... | 02/28/1989 |
| 4758013 | Hand crank wheelchair drive A hand crank powered wheelchair with forward, coast, reverse, and braking capability. The wheelchair has a left and right hand crank. Each hand crank is used to independently control the two rear wheels. A clutch and brake is contained in the hub of each ... | 07/19/1988 |
| 4720117 | Hand-pedalling attachment for wheel-chairs A pedalling attachment for wheelchairs, to form a composite vehicle therewith, which includes an attachment frame with a pedalling mechanism and novel attachment means thereon. The attachment frame has two slidably and rotatably adjustable frames slidably... | 01/19/1988 |
| 4695071 | Hand powered tricycle having a wheelchair hitch A hand operated cycle apparatus including a cycle frame having a pair of spaced apart rear wheels rotatably attached along the horizontal axis to the rear of the cycle frame. A yoke is pivotally attached to the front of the cycle frame and a front wheel i... | 09/22/1987 |
| 4625984 | Folding wheelchair A folding wheelchair comprising first and second side frames which are hingedly secured together to enable the wheelchair to be moved between folded and operative positions. Drive wheels are located at the lower rearward ends of each of the side frames an... | 12/02/1986 |
| 4573696 | Self-propelled recreational vehicle A self-propelled vehicle, primarily for children, comprising rigid frame having elongated seat and leg rest, and backrest integrally formed with and making an internal angle with the seat rest which may be slightly greater than 90 degrees. Beneath the sea... | 03/04/1986 |
