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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 |
| 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 |
| 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 |
| 7328906 | Stroller apparatus A stroller apparatus for exercising the arms and a portion of an upper torso of a user includes a seat to receive and support a rider. A frame is coupled to the seat to support the seat in an elevated position above a ground surface. A plurality of wheels is coupled... | 02/12/2008 |
| 7296811 | Wheelchair propulsion device This invention provides wheelchair propulsion devices that do not contact the axles of the wheels to which they are attached, that decrease the amount of force required to propel the wheelchair, and that can be easily installed. The devices toggle between sliding wi... | 11/20/2007 |
| 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 |
| 7066480 | System for controlling a moving part, steering system for a light vehicle and tricycle fitted with said system The steering system according to the invention provides a means of coordinating the movements of the two steering handles on a machine such as light tricycle type vehicles propelled by a pedal (5) and propulsion arms (6). The steering system com... | 06/27/2006 |
| 7014204 | Rocking wheelchair A rocking wheelchair is provided with multiple adjustable features to meet various needs of different users with respect to safety, comfortableness and user/caregiver convenience. The rocking wheelchair includes an adjustable maximum rocking motion setting for users... | 03/21/2006 |
| 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 |
| 6893035 | Wheelchair drive mechanism A wheelchair which shifts between forward and reverse by virtue of a roller mechanism which grabs in one direction and slips an opposite direction, thereby preventing binding. The shift mechanism is initiated by rotation of a shift paddle which is located on a extre... | 05/17/2005 |
| 6688623 | Human powered vehicle drive mechanism The present invention is a drive mechanism for human powered vehicles. In general, the invention is a unique drive mechanism for any human powered vehicle, such as a bicycle or a human powered boat. The mechanism enables the operator to efficiently apply ... | 02/10/2004 |
| 6491125 | Snowmobile with pivotable rear snow flap A snowmobile includes a chassis having a generally reduced length and a snow flap pivotally attached to the rear portion of the chassis, above the track system. The track system extends rearwardly beyond the chassis, and the snow flap shields the track sy... | 12/10/2002 |
| 6086078 | Rowing machine with wheels A rowing machine with a body frame assembly and actuated by a seated user. It includes a stabilizing wheel assembly with the ends of a pivotally mounted axle provided with wheels. A pivotally mounted front wheel assembly is designed for steering the machi... | 07/11/2000 |
| 6032970 | Upper body activated cycle An upright in-line cycle having a frame, front steerable wheel, drivable rear wheel, drive sprocket, driven sprocket, oscillatory steering levers, a fork assembly, a drive crank assembly, and drive with connecting rods operably connected such that the osc... | 03/07/2000 |
| 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 |
| 5511810 | Hand driving device for a bicycle A hand driving device for a bicycle, the bicycle having a frame including an inclined frame member and a steering head. The hand driving device has a pair of spaced apart hand levers pivotally connected to a pair of pivoted levers, which are in turn pivot... | 04/30/1996 |
| 5499833 | Manually operated wheelchair A manually-operated wheelchair is disclosed, which includes a frame to which two front wheels and two rear wheels are fastened pivotally, wherein the frame is provided respectively on both left and right sides thereof with a horizontal fixation rod; and a conn... | 03/19/1996 |
| 5490686 | Oscillating lever hand propelled vehicle A vehicle for converting oscillating human motion into linear vehicular translation. The inventive device includes a frame having first and second pairs of driving wheels rotatably mounted thereto. A pair of center wheels projects from the frame between t... | 02/13/1996 |
| 5288092 | Arm powered tricycle and method of movement An arm powered tricycle that has a frame with a passenger seat that is capable of forward, backward, or circular motion. The frame has a front wheel that consists of a sphere horizontally and rotatably mounted on an axle that can also rotate about a verti... | 02/22/1994 |
| 5282640 | Exercise bicycle An O-ring is mounted to the wheel of a manually powered bicycle. A Teflon washer is mounted on the wheel sprocket contacting the O-ring. The friction between the O-ring and the Teflon washer are sufficient to move the crank sprocket away from dead center ... | 02/01/1994 |
| 4960286 | Self-propelled vehicle A self-propelled vehicle wherein a platform is mounted overlying a trio of support members wherein the platform is provided with a rearwardly and upwardly extending guard overlying a caliper arrangement mounted to a central support column of the trio of c... | 10/02/1990 |
| 4749207 | Hand propelled and foot steered cart A non-motorized cart for carrying a rider who supplies propelling energy for the cart, including: a frame having an H-shaped form, a front end and a rear end; two front wheels and two rear wheels; a crank mechanism connected to the rear wheels for rotatin... | 06/07/1988 |
| 4616840 | Machine for utilizing energy A machine for utilizing muscular energy is disclosed which can be driven, through separate operating means, by movement of a user's legs and by upper body (i.e. arms and torso) movement. The movement of the legs and the upper body movement need not be syn... | 10/14/1986 |
| 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 |
| 4548420 | Reciprocating and oscillating drive mechanism A manual drive for a bicycle, or other usage, wherein a rotary crank is connected in driving relation with a bicycle wheel or other driven device, and a slotted block or yoke rides on a guide or pin by manual actuation, a connecting rod being connected be... | 10/22/1985 |
| 4524987 | Tricycles This invention provides a tricycle having a simple frame that is shaped to provide an efficient low profile, lever actuation, which is adapted to be hand-operated for enjoyable, interesting and efficient training purposes, including efficient propulsion, ... | 06/25/1985 |
| 4460190 | Hand propelled wheelchair A three wheeled wheelchair wherein two of the wheels are leading wheels with the single wheel being a trailing wheel. The wheelchair is propelled through the use of a chain drive assembly which is to be manually operated through the use of a handle assemb... | 07/17/1984 |
| 4189166 | Self-propelled vehicle A self-propelled vehicle in the form of a scooter. The vehicle includes a main frame having a platform relatively close to the ground upon which a person can stand. Forward and rearward wheels arranged in tandem ground support the vehicle with the front w... | 02/19/1980 |
| 4098521 | Wheelchair adaptable for passage in narrow spaces A wheelchair that may be used by disabled persons as a normal self-propelled vehicle and is easily convertible to a narrow attendant-propelled wheelchair for negotiating narrow passages such as airplane aisles and bathroom doors in places not equipped for... | 07/04/1978 |
| 3986725 | Manually propelled vehicle A manually propelled vehicle having a main frame supported on front and rear ground engageable wheels, a support body on the frame for supporting an occupant, control means operable by the occupant and comprising an oscillating drive member mounted to piv... | 10/19/1976 |
