Oscillating Lever Patents (Class 280/244)
  • Patent number: 11033444
    Abstract: Wheelchair with two independent driving arms fixed to the frame by pivot bearings at a low position. The driving arms extend to a sufficient height for the user to hold their upper portions and to move them in forward-backward directions around the pivotal bearings. Ropes are connected to the lower sections of the driving arms. Two large wheels have wheel hubs equipped with freewheel, and each wheel hub have a rope drums attached with a spring bias, and a winding made of rope. Pulling a the rope in forward direction results in turning the wheel hub in forward direction, and when the rope drum (31, 31?) is turned in the other direction the freewheel releases the connection towards the large wheel. The wheel hub comprises a release mechanism that releases the freewheel when the large wheel is moved in backward direction and backward movement gets allowed.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: June 15, 2021
    Inventors: László Mórucz, Zoltán Kálazi
  • Patent number: 10993860
    Abstract: This invention is a rotational manual propulsion wheel chair hand pedal to be fitted to the axles of both wheels of a wheel chair. The rotational wheel chair hand pedal is attached to the two large wheels of a wheel chair by means of being directly attached to the axles and or hubs securely of the wheel chair's wheels, or surrounding the hubs of the wheel chair's wheels. The rotational wheel chair hand pedal has an arm, which fits from the wheel chair's axle and or hub to the wheel chairs wheel's rim. The position of the handles is fixed by retractable and is adjustable by pressing a button at the end of the handle to retract the pins.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: May 4, 2021
    Inventor: Simon S. McNally
  • Patent number: 10875599
    Abstract: Vehicle (110) including a frame (114), a seat mounted to the frame (114), wheels (116, 118) rotatably mounted on the frame (114), and drive mechanisms (112) for causing rotation of one wheel (116). Each drive mechanism (112) includes an arm (132) pivotally attached to the frame (114) at one end, a weight (136) and attached pedal (138) at an opposite end of the arm (132), and a guide member (142) including a bump (150) and that moves in conjunction with movement of the weight (136). The guide member (142) has a first end region at which it is pivotally attached to the frame (114) and a second, opposite end region which is free. A roller (140) attached to the arm (132) moves along the guide member (142) during pivotal movement of the arm (132) to cause pivoting of the guide member (142) as the roller (140) engages with the bump (150). An energy transfer system (148) converts pivotal movement of the guide member (142) into motive power to rotate the wheel (116).
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: December 29, 2020
    Assignee: Cyclazoom, LLC
    Inventor: Michael Kipnis
  • Patent number: 10548785
    Abstract: A hand propelled wheeled vehicle, specifically a wheelchair, containing a pair of hand actuated, lever driven mechanisms to rotate the main wheels. The levers pivot around attachment points on the left and right sides of the vehicle chassis. The left lever actuates a frame responsible for contra-rotating two integral one-way clutches arranged on a drive shaft coupled to the left main wheel, with the right lever operating the right side mechanism in an identical fashion. The arrangements of the clutches utilize both the forward (pushing) and backward (pulling) stroke of the lever to rotate the main wheels forward. Steering and braking control is afforded through attachments integral to the hand grips of the right and left hand levers, respectively.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 4, 2020
    Inventors: Hans Vermij, Maximiliaan Vermij, Mitchel James MacLatchie
  • Patent number: 10111789
    Abstract: A manual wheelchair propulsion device (FIGS. 5, 6 & 7), attached to wheelchairs through the axles of the rear wheels (FIGS. 14, 15, 16 & 17), attached through the wheel winder unit with a quick release head with ball Joint to lock in position (FIGS. 1, 2) to an adaptable socket either manufactured into the axle of the wheelchair wheel or attached rigidly with supports later (FIGS. 14, 15 & 17) with a retractable arm (FIGS. 5 & 6) with eight gears and one neutral (FIGS. 3, 12 & 13) used in a circular motion to manually propel ones self.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: October 30, 2018
    Inventor: Simon S. McNally
  • Patent number: 9597242
    Abstract: A joint movement detection device and system is presented which is responsive to elbow or wrist movements during use of a manually-propelled wheelchair to enable coordination of assistive motor energization with a user's efforts at self-motivating the manually-propelled wheelchair during driving, steering, and braking of the wheelchair. Several embodiments are provided which help to ensure user-intended assistive motor output that is responsive to movement of the joint over which the device is worn.
    Type: Grant
    Filed: July 17, 2016
    Date of Patent: March 21, 2017
    Inventor: Stephen C. Golden, Jr.
  • Patent number: 9498395
    Abstract: A joint movement detection device and system is presented which is responsive to elbow or wrist movements during use of a manually-propelled wheelchair to enable coordination of assistive motor energization with a user's efforts at self-motivating the manually-propelled wheelchair during driving, steering, and braking of the wheelchair. Several embodiments are provided which help to ensure user-intended assistive motor output that is responsive to movement of the joint over which the device is worn.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: November 22, 2016
    Inventor: Stephen C. Golden, Jr.
  • Patent number: 9051025
    Abstract: A human-propulsion-system utilizing a telescoping arm lever assembly and an optional pedal assembly to be adapted to or incorporated into other mechanisms including, but not limited to, wheelchairs and vehicles. The arm lever assembly and the pedal assembly can be utilized in combination or independently further being operatively connected to a converter that utilizes gears and clutches to receive the reciprocal movements of the arm lever assembly and the rotational movements of the pedal assembly converting them into a combined unidirectional output. The arm lever assembly utilizes a slide mechanism that correspondingly moves the load end closer to the fulcrum point when the arm lever assembly is extended and correspondingly moves the load end farther away from the fulcrum point when the arm lever assembly is retracted offering a range of adjustable leverages. The arm lever assembly is further rotated left or right to provide a means of (steering) control.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: June 9, 2015
    Inventor: Kevin Alan Schminkey
  • Patent number: 9010786
    Abstract: A multi-directional lever drive system comprising a lever drive assembly comprising a lever for imparting actuation for driving a shaft through a roller mechanism, and engaging a switch assembly whereby the properties of the roller mechanism can be selected to drive the shaft forward, neutral, and reverse. The proposed switch assemblies enable convenient direction control from the same lever that inputs actuation to the drive assembly, making the lever drive assembly suitable for systems such as a lever propelled wheelchair, a winch, and hand tools.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: April 21, 2015
    Inventors: Andrew Ekelem, Michelle Sangalang
  • Publication number: 20140306421
    Abstract: A human-propulsion-system utilizing a telescoping arm lever assembly and an optional pedal assembly to be adapted to or incorporated into other mechanisms including, but not limited to, wheelchairs and vehicles. The arm lever assembly and the pedal assembly can be utilized in combination or independently further being operatively connected to a converter that utilizes gears and one-way clutches to receive the reciprocal movements of the arm lever assembly and the rotational movements of the pedal assembly converting them into a combined unidirectional output. The arm lever assembly utilizes a slide mechanism that correspondingly moves the load end closer to the fulcrum point when the arm lever assembly is extended and correspondingly moves the load end farther away from the fulcrum point when the arm lever assembly is retracted offering a range of adjustable leverages. The arm lever assembly is further rotated left or right to provide a means of (steering) control.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 16, 2014
    Inventor: Kevin Alan Schminkey
  • Patent number: 8857839
    Abstract: A lever drive system for a scooter including a crank arm having a first distal end pivotally carried on a frame and operatively associated with a drive sprocket, wherein reciprocating movement of the crank arm causes rotation of the drive sprocket for moving a drive chain operatively associated with a wheel assembly. A footrest is disposed on the crank arm for operating the crank arm. A cam member is pivotally mounted to the frame generally adjacent the crank arm. A cam follower is carried by the crank arm engaging the cam member, wherein movement of the crank arm causes the cam follower to move along a contoured control surface of the cam member for controlling an up and down movement of the crank arm.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 14, 2014
    Assignee: Zike, LLC
    Inventors: Nathan Scolari, George Reiter
  • Patent number: 8857838
    Abstract: A dual drive system for a non-motorized vehicle comprising a first drive unit disposed on a vehicle frame, wherein the first drive unit has a rotary action and is operatively associated with a first wheel assembly for turning a wheel; and, a second drive unit disposed on the vehicle frame, wherein the second drive unit has a lever action and is operatively associated with the first wheel assembly for turning the wheel. The first drive unit and the second drive unit are independently operable for turning the wheel.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 14, 2014
    Assignee: Zike, LLC
    Inventors: Nathan Scolari, George Reiter
  • Patent number: 8844959
    Abstract: A manually powered wheelchair includes a first lever associated with a first rear wheel and demountably coupled to a first drivetrain, the first lever having a first brake thereon. The wheelchair also includes a second lever associated with a second rear wheel and demountably coupled to a second drivetrain, the second lever having a second brake thereon. Each drivetrain includes a chainring, a chain, and a freewheel, and each drivetrain has a fixed gear ratio. The freewheel of each drivetrain is actuated by manual pivoting of the lever associated therewith. In use, the wheelchair achieves changes in mechanical advantage when a user shifts the user's hands up and down the first and second levers.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: September 30, 2014
    Assignee: Global Research Innovation and Technology L3C
    Inventors: Amos G. Winter, V, Mario A. Bollini, Danielle M. DeLatte, Harrison F. O'Hanley, Natasha K. Scolnik, Gwyndaf M. Jones, Daniel D. Frey, Benjamin Judge, Benjamin H. Gallup, Danielle Hicks, Nydia Ruleman, Xuefeng Chen
  • Patent number: 8794650
    Abstract: One embodiment of a hands free bicycle maintenance pedaler provides means to the operator to have both hands free for adjusting, cleaning, lubricating, inspecting or locking the drive train components of a supported bicycle. One embodiment has a motor (1600) communicating with a power enclosure (1210) and a speed pedal (1205) to variably power said motor. Said motor frictionally engages with a motor plate (1500) through which an output shaft (1620) passes and frictionally engages with a crank interface arm (1700). Said crank interface arm contains a temporary connection means to a crank arm (190) using pair of connector rods (1745) along said crank arm. Said motor plate is pivotable and slidable along a carriage (1400). Said carriage is slidable along a tube (1300) or work stand (110) to achieve acceptable orientation between the device and an imaginary line through the center line of a bottom bracket of a bicycle.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: August 5, 2014
    Inventor: Jefferson S Williams
  • Patent number: 8746720
    Abstract: A leisure fitness bike has a front frame hinged to a rear frame, a handlebar and a front wheel. A pedal body is installed at upper and lower ends of the front frame. The rear frame includes a saddle, a rear wheel and a rear wheel transmission device. A driving device is between the front and rear frames and coupled to a rear wheel transmission device. After a rider sits on the saddle and puts both hands and legs onto the handlebar and the pedal body, the front frame is moved forward and backward by stretching and contracting forces, and the driving device drives the rear wheel transmission device to roll the rear wheel and move the bike body.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: June 10, 2014
    Assignee: Hsin Lung Accessories Co., Ltd.
    Inventors: Xue-Sen Liao, Jeeng-Neng Fan
  • Publication number: 20140015218
    Abstract: A vehicle is provided that includes a frame having a drive member supported for rotation thereon. A handlebar is supported for pivotal movement relative to the frame. A drive mechanism is provided on the frame that is configured to rotate the drive member in a first rotational direction when the handlebar is pivoted in either a first direction using a push-stroke or a second direction using a pull-stroke.
    Type: Application
    Filed: December 28, 2012
    Publication date: January 16, 2014
    Inventors: Adam C. Poor, Ralph T. Poor
  • Patent number: 8540266
    Abstract: A wheelchair comprises a main frame and a seat mounted on the main frame. A pair of front wheels and a pair of rear wheels are also mounted on the frame. A propulsion mechanism is provided for driving the rear wheels, the propulsion mechanism comprising an arm lever for forward and back movement and a gear train between the arm lever and the rear wheels.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: September 24, 2013
    Inventor: Scott Bradley Baker
  • Patent number: 8439379
    Abstract: A bicycle wherein the front wheel can be both steered and powered by reciprocal movement of the handle bars in a forward and rear direction. The drive system for the front wheel comprises a first linkage comprising two arms, one of which is a pivoting arm, and a second linkage comprising three arms, two of which are pivoting arms. The two arm linkage system is the primary driver in the sense of rotating a drive sprocket between two over center positions. The three arm linkage system, while also driving the drive sprocket, serves the primary function of moving the two arm linkage system over the two center positions, as the handle bars are reciprocated in forward and rear directions.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: May 14, 2013
    Inventor: Mark T. Schanzer
  • Publication number: 20130082452
    Abstract: A leisure fitness bike has a front frame hinged to a rear frame, a handlebar and a front wheel. A pedal body is installed at upper and lower ends of the front frame. The rear frame includes a saddle, a rear wheel and a rear wheel transmission device. A driving device is between the front and rear frames and coupled to a rear wheel transmission device. After a rider sits on the saddle and puts both hands and legs onto the handlebar and the pedal body, the front frame is moved forward and backward by stretching and contracting forces, and the driving device drives the rear wheel transmission device to roll the rear wheel and move the bike body.
    Type: Application
    Filed: August 15, 2012
    Publication date: April 4, 2013
    Applicant: HSIN LUNG ACCESSORIES CO., LTD.
    Inventors: XUE-SEN LIAO, JEENG-NENG FAN
  • Patent number: 8388004
    Abstract: A personal transportation device comprises a riding platform supported by one or more wheels, a steering mechanism at least partially embedded in the riding platform and a drive wheel assembly. A first wheel may be steerable while a second wheel is a slave wheel. The steering mechanism may be foot-operated. The drive wheel may be hand-propelled and non-steerable. The drive wheel is operatively connected to a drive sprocket and chain and is coupled to the riding platform by a platform frame. The personal transportation device may comprise one or more track arm assemblies coupled to the drive wheel assembly such that movement of the track arm assemblies operates the drive wheel assembly and rotates a drive wheel to propel the vehicle.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: March 5, 2013
    Inventor: Edward Walter
  • Publication number: 20130015632
    Abstract: A manually powered wheelchair includes a first lever associated with a first rear wheel and demountably coupled to a first drivetrain, the first lever having a first brake thereon. The wheelchair also includes a second lever associated with a second rear wheel and demountably coupled to a second drivetrain, the second lever having a second brake thereon. Each drivetrain includes a chainring, a chain, and a freewheel, and each drivetrain has a fixed gear ratio. The freewheel of each drivetrain is actuated by manual pivoting of the lever associated therewith. In use, the wheelchair achieves changes in mechanical advantage when a user shifts the user's hands up and down the first and second levers.
    Type: Application
    Filed: January 23, 2012
    Publication date: January 17, 2013
    Inventors: Amos G. Winter, V, Mario A. Bollini, Danielle M. DeLatte, Harrison F. O'Hanley, Natasha K. Scolnik, Gwyndaf M. Jones, Daniel D. Frey, Benjamin Judge, Benjamin H. Gallup, Danielle Hicks, Nydia Ruleman, Xuefeng Chen
  • Patent number: 8336897
    Abstract: A standard-sized bicycle includes a main frame, a rear drive wheel and a rowing mechanism. The rowing mechanism is coupled to the steering column about a fulcrum. The fulcrum allows the rowing mechanism to oscillate forward in response to a pushing force and backward in response to a pulling force. The rowing mechanism includes a power lever and a pair of drive levers. The power lever has a handle on one end. The power lever also has a second end. The pair of drive levers extend from the second end of the power lever and provide foot rests for additional force. Each of the pair of drive levers is in mechanical communication with the rear drive wheel such that a forward oscillation of the rowing mechanism will drive the rear drive wheel in a same direction of rotation to propel the bicycle forward.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: December 25, 2012
    Inventor: Juliana Leslie
  • Patent number: 8256784
    Abstract: A vehicle with front and rear steering is disclosed. The vehicle can be a cycle. The cycle includes a front wheel steered by a front hand-steering mechanism, and two back wheels steered by a back hand-steering mechanism. The back wheels are dual inclined casters with full rotational movement. A drive train forward of the front wheel drives the front wheel, while a rider is inclined in a seat in a recumbent orientation. The front and rear steering provides unlimited maneuverability and turning capabilities.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: September 4, 2012
    Inventors: Tyler Hadzicki, Joseph Hadzicki
  • Patent number: 8181977
    Abstract: A bicycle arm-drive apparatus includes a stationary mounting structure, an arm drive input mechanism, a drive motion transmission mechanism, and a plurality of connectors. One end of the mounting structure attaches to the front-center portion of the bicycle. The arm drive input mechanism includes a pair of control arms that pivotally attach to the other end of the mounting structure and generally extend rearward and outward from there. The operator grips each control arm, inputting arm power by driving them fore-and-aft. The drive motion transmission mechanism includes a pair of connecting rod assemblies running down opposite sides of the bicycle frame between the control arms and bicycle pedals. A plurality of connectors link the connecting rod assemblies to the pedals and control arms in order to transmit control arm fore-and-aft movement via the connecting rod assemblies to the pedals to enable the arm power to assist with bicycle pedaling.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: May 22, 2012
    Inventor: Christopher B. Bartlett
  • Patent number: 8157280
    Abstract: 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 attached to the frame and includes a first end having a pair of handles sized to be grasped and moved in a rowing motion by both hands of a person and a second end that rotatably attaches to a disk shaped second driver. A linkage is moved by the second driver when the person pivots the first end of the lever arm and the linkage rotates the first driver and the driven wheel. A steerable wheel and a steering member that are operated by the lever arm steer the steerable wheel. The steering member communicates moveably with a telescoping universal joint, the telescoping universal joint enabling the lever arm to be pivoted and steered.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: April 17, 2012
    Assignee: Morse Cycle Company LLC
    Inventor: Robert M. Drymalski
  • Patent number: 8118320
    Abstract: A steering mechanism for a push-and-pull vehicle provides a handlebar to be used to steer a vehicle left and right while simultaneously being used to drive the vehicle forward by pushing and pulling action. The handlebar is at the top of a swing pole, the swing pole being held by a turning sleeve on a swing arm pivoted on the vehicle frame. The swing pole connects the handlebar to a frame supported u-joint which is connected to a vehicle steering mechanism. The turning sleeve connects the handlebar and swing pole to the swing arm, the output of the swing arm driving the vehicle forward.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: February 21, 2012
    Inventor: Rocky Jenlon Lee
  • Patent number: 8113528
    Abstract: A racing wheelchair is disclosed. The racing wheelchair may have a pair of rear wheels and a steerable single front wheel. The rear wheels may be independently driven by a lever, through a derailer and a chain, such that pushing one of the two levers will move one of the wheels but not the other. The front wheel is steerable by twist grips located at the removed end of the levers. Brake assemblies and shifter assemblies of the derailers are located adjacent the twist grip, and may be rigidly mounted to the push lever or mounted to the twist grip to rotate therewith.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: February 14, 2012
    Inventor: William Taylor
  • Patent number: 8109529
    Abstract: The present application pertains to a wheelchair having a frame; a seat attached to the frame and supporting a user; two lateral drive wheels mounted on essentially horizontal axes; and a propulsion system including a handle, an operating lever supporting said handle and having a friction element mounted onto the operating lever. The operating lever is movable axially with respect to one axis between a first and second position and radially. The friction element is arranged and constructed to frictionally engage said drive wheel in the first position and radial movement of the propulsion system propels the chair in a predetermined direction.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: February 7, 2012
    Inventors: Ethan Rand, Robert Koffsky
  • Patent number: 8016310
    Abstract: 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 permits quick release of a main wheel and the propulsion system (e.g., lever drive, pushrim and motor drive) that propels the main wheel. The clamp includes a first alignment feature, such as a pin. A spring-loaded latch may also be included. The attachment device includes a second alignment feature, such as a hole or slot, configured to mate with the first. To permit alignment for a number of different wheelchair frame geometries, the attachment device is rotatable to provide angular adjustability, structured to permit lengthwise adjustability, and coupled using hardware which provides offset adjustability in a direction generally parallel to the axis of the wheel.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: September 13, 2011
    Assignee: Daedalus Wings, Inc.
    Inventors: Bart Kylstra, Nathan Jauvtis
  • Publication number: 20110187075
    Abstract: An improved wheelchair driving apparatus includes a driving rod pivotally installed at an axle of each driving wheel on both sides of a chair frame, and an external end of the driving rod being extended from an external rim of the driving wheel, a brake module installed at a position corresponding to the driving wheel and provided for fixing and releasing the driving wheel by a hand brake, such that users can release the driving wheel through the brake module by both hands to freely swing the driving rod back and forth or fix the brake module to the driving wheel through the hand brake to swing the driving rod back and forth to drive the driving wheel to move forward or backward, such that the wheelchair can be operated and controlled in an easier, more, conveniently, cleaner, less effort and safer manner.
    Type: Application
    Filed: December 27, 2010
    Publication date: August 4, 2011
    Inventor: RONG-JEN WU
  • Publication number: 20110187074
    Abstract: Propulsion apparatus which is mountable to the wheel (3) of a vehicle, and in particular a wheelchair, the apparatus comprising a wheel adapter assembly (1) which comprises a plurality of pivotable spoke assemblies (5) which are engageable with the rim (4) of the wheel, and a brake and drive arrangement (72) which comprises selectively engageable clutch arrangement which allows a user, by way of a lever arm portion (71), to propel the vehicle.
    Type: Application
    Filed: October 16, 2005
    Publication date: August 4, 2011
    Inventor: Andrew Malloy
  • Patent number: 7967314
    Abstract: A wheeled vehicle drive mechanism is provided that has a hand leverage arm and one or more horizontal gears to move associated drive gears. A drive chain meshed with a fixed drive sprocket keyed to the drive gears may be used to transmit motion from the horizontal gears to the vehicle wheels.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: June 28, 2011
    Inventor: Nicholas F. Mirabile
  • Patent number: 7938419
    Abstract: A standard-sized bicycle includes a main frame, a rear drive wheel and a rowing mechanism. The rowing mechanism is coupled to the main frame about a fulcrum. The fulcrum allows the rowing mechanism to oscillate forward in response to a pushing force and backward in response to a pulling force. The rowing mechanism includes a power lever and a pair of drive levers. The power lever has a handle on one end. The power lever also has a second end. The pair of drive levers extend from the second end of the power lever. Each of the pair of drive levers is in mechanical communication with the rear drive wheel such that both a forward oscillation of the rowing mechanism and a backward oscillation of the rowing mechanism drive the rear drive wheel in a same direction of rotation to propel the bicycle forward.
    Type: Grant
    Filed: August 24, 2008
    Date of Patent: May 10, 2011
    Inventor: Juliana Leslie
  • Patent number: 7914028
    Abstract: An occupant propelled vehicle is provided that includes a frame having a front portion and a rear portion, front and rear wheels, a platform for the occupant, an integrated articulating steering mechanism and a drive mechanism. The steering mechanism provides the multiple function of power transmission to a drive train, maneuvering the vehicle through a 360° turning radius and reversing the direction of the vehicle, so that it can travel both forward and backward. In one embodiment, the driving mechanism includes a power transfer means having a first end connected to a drive sprocket through a chain and a second end connected to another drive sprocket through the chain both sprockets mounted on a front wheel for propulsion. The steering means transfers power through the chains that in turn rotate the sprockets and associated wheel propelling the vehicle.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: March 29, 2011
    Inventor: Adelino Pastilha
  • Patent number: 7900945
    Abstract: An all-terrain wheelchair including independently operable right and left push bars arranged to enable individuals of varied physical strength to move the chair along a wide range of terrains, including soft terrain. The push bars allow the user to establish mobility without hand to wheel interaction. The all-terrain wheelchair allows the user to propel the chair forward with a forward motion of the push bars while pulling back on the push bars engages a braking system. Turning is achieved with a forward motion on one push bar and a backward motion on the other push bar. The all-terrain wheelchair of the present invention offers the user a multi-speed geared advantage over traditional wheelchairs. Shifting into lower gears for snow, mud, and sand, gives the user the freedom to go where they have not been able to go with traditional wheelchairs. The push bars are removable and may be stored so that the wheelchair may be moved using conventional hand-to-wheel pushing.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: March 8, 2011
    Assignee: Renegade Wheelchairs, LLC
    Inventor: John W. Rackley
  • Patent number: 7896375
    Abstract: The present invention relates to an arm and leg powered bicycle, comprising handle levers, a front wheel, a rear wheel, a handle shaft, supporting frames, pedals, a pedal shaft, front and rear sprockets and a chain belt, wherein the bicycle further includes an operating means for vertically rotating the handle levers, said member consisting of a handle rotation shaft, an operating rod or rods and a handle rotation shaft support, and a means for transferring the rotating force of the handle levers to a pedal shaft, said means consisting of a crank shaft, a rotating shaft, a flexible joint, a driving gear and a driven gear mounted on a pedal shaft.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: March 1, 2011
    Inventor: Kie-Ho Cynn
  • Publication number: 20100320719
    Abstract: The present application pertains to a wheelchair having a frame; a seat attached to the frame and supporting a user; two lateral drive wheels mounted on essentially horizontal axes; and a propulsion system including a handle, an operating lever supporting said handle and having a friction element mounted onto the operating lever. The operating lever is movable axially with respect to one axis between a first and second position and radially. The friction element is arranged and constructed to frictionally engage said drive wheel in the first position and radial movement of the propulsion system propels the chair in a predetermined direction.
    Type: Application
    Filed: December 15, 2009
    Publication date: December 23, 2010
    Inventors: Ethan RAND, Robert Koffsky
  • Patent number: 7837210
    Abstract: A drive mechanism for a lever propulsion wheelchair includes at least one clutch and at least one gear set contained within a central hub housing operatively coupled to the drive surface of the main wheel being driven. In the preferred embodiment, there are additional clutches and gear sets contained within the hub housing and coaxial to the wheel. By locating the transmission components within the hub housing and providing the coaxial arrangement, various user capabilities may be enabled without a significant increase in wheelchair width, as compared to the width of conventional pushrim propulsion wheelchairs. Transmission components are cooperatively arranged to provide capabilities that may include forward, rearward and neutral “gears,” braking, anti-rollback, and quick-release removal.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: November 23, 2010
    Assignee: Daedalus Wings, Inc.
    Inventors: Bart Kylstra, Nathan Isaiah Jauvtis, Thomas Martin Cook, Jeremy Winston Huff, Sean Kerrel
  • Patent number: 7823897
    Abstract: A drive system for a work vehicle comprises a control unit adapted to: monitor output of a speed ratio setting input device for a speed ratio setting request signal and output of a drive-request input device for a FWD-only request signal, determine from the speed ratio setting request signal if a requested speed ratio setting represented thereby is one of at least one predetermined speed ratio setting among a plurality of speed ratio settings possible for the work vehicle upon receipt of the FWD-only request signal, and, if so, output at least one control signal engaging a FWD-only mode enabling FWD operation of the work vehicle but disabling RWD operation of the work vehicle. An associated method is disclosed.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: November 2, 2010
    Assignee: Deere & Company
    Inventors: Andrew Wayne Kelly, Brent Allen Smith, Scott Joseph Breiner, Craig Ronald Timmerman
  • Publication number: 20100264621
    Abstract: 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 attached to the frame and includes a first end having a pair of handles sized to be grasped and moved in a rowing motion by both hands of a person and a second end that rotatably attaches to a disk shaped second driver. A linkage is moved by the second driver when the person pivots the first end of the lever arm and the linkage rotates the first driver and the driven wheel. A steerable wheel and a steering member that are operated by the lever arm steer the steerable wheel. The steering member communicates moveably with a telescoping universal joint, the telescoping universal joint enabling the lever aim to be pivoted and steered.
    Type: Application
    Filed: June 29, 2010
    Publication date: October 21, 2010
    Inventor: Robert Drymalski
  • Patent number: 7802804
    Abstract: The wobble bearing axle assembly is used for engaging the upper body of a person for use in human powered vehicles and exercise equipment. The wobble bearing assembly converts linear input force derived by the operator into rotational force, which is directed toward the forward propulsion of a wheel. The wobble bearing axle assembly comprises a wobble bearing, a wobble axle, at least two engagement members a first arm and a second arm. The wobble bearing is disposed upon the oblique retainer of the wobble axle. The oblique retainer of the wobble axle is angled offset from the axis of the wobble axle Y. The engaging members are rotatably affixed with the first and second arms through pins which is longitudinally disposed through complementary orifices through the first and second arms and the engaging members respectively. In some preferred embodiments additional bearings are engaged with the pedals powered by the legs of the operator.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: September 28, 2010
    Inventor: John Lawson
  • Patent number: 7584976
    Abstract: The Trike's unique power source is provided by a rowing-type motion of the user rather than the less efficient “hand rim” grip or wrist propulsion. The rowing motion significantly reduces the chances for repetitive stress injuries, like carpal tunnel. Furthermore, the rowing motion and movements, are designed to facilitate efficient propulsion and steering in combination, to be effected simultaneously. The rowing motion allows the user's full arm strength and full range of motion to assist in the powering of the vehicle. The wheelchair also has a retractable fifth or propulsion wheel that allows the chair to be used in a confined space without sacrificing performance.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: September 8, 2009
    Inventors: Christopher J. Bayne, Stephen Barker
  • Publication number: 20080277896
    Abstract: The Swing Powered Scooter is to provide a transportation powered by hands instead of by feet. It has a handlebar on top of a swing pole, with a center point which is supported by an inner ring of a bearing on a board; Using pulling or pushing action drives wheels move, at same time, the handlebar steers in the forward direction. The bottom of the swing pole drives an increasing gear ratio mechanism; and by positioning an idler gear to change speeds or by 2 chains. Furthermore using a rack and a passive gear makes this invention is able to use pushing or pulling or both actions to make vehicle move forward.
    Type: Application
    Filed: May 8, 2007
    Publication date: November 13, 2008
    Inventors: Rocky Jenlon Lee, Li Lin Ni
  • Publication number: 20080238022
    Abstract: A drive mechanism for a lever propulsion wheelchair includes at least one clutch and at least one gear set contained within a central hub housing operatively coupled to the drive surface of the main wheel being driven. In the preferred embodiment, there are additional clutches and gear sets contained within the hub housing and coaxial to the wheel. By locating the transmission components within the hub housing and providing the coaxial arrangement, various user capabilities may be enabled without a significant increase in wheelchair width, as compared to the width of conventional pushrim propulsion wheelchairs. Transmission components are cooperatively arranged to provide capabilities that may include forward, rearward and neutral “gears,” braking, anti-rollback, and quick-release removal.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Inventors: Bart Kylstra, Nathan Isaiah Jauvtis, Thomas Martin Cook, Jeremy Winston Huff, Sean Kerrel
  • Patent number: 7413206
    Abstract: 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 freewheel. The freewheel causes the drive sprocket to be rotatably driven only when the first gear is driven in either the first direction or the second direction. A driven sprocket may be mounted coaxially and in driving relationship with a wheel of the bicycle. A chain may be used for linking the drive sprocket and the driven sprocket. First and second levers extend from a support bar, which is coaxially mounted to the first gear. Reciprocal movement of the first and second levers causes the first gear to rotate, and correspondingly causes the second gear to rotate, thereby effecting rotation in the drive sprocket and the driven sprocket.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: August 19, 2008
    Inventors: Victor Medina Peña, Ricardo Medina Peña
  • Patent number: 7360780
    Abstract: 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 conventional bicycle or tricycle. Drive means includes a single one-way clutch and a reciprocating endless chain or cable member which does not require a rewind spring. The total mechanism is very simple, the reciprocating components are few and light weight, and a long stroke yields a functional efficiency and top speed.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: April 22, 2008
    Inventor: Joe W. Tucker
  • Publication number: 20080073869
    Abstract: The present invention provides a human powered vehicle drive system that includes a vehicle frame, a power system including a pivotable drive lever and a one-way clutch, a neutral shifting system, and a braking system. The drive lever may be coupled to a tension member that is associated with the drive lever and a drive spool, so that power is transmitted from the drive lever to the drive spool via the tension member, and from the drive spool to a driven wheel via the one-way clutch. A drive-ratio shifting control allows a user to vary a drive ratio by translating the attachment point of the tension member to the drive lever up or down the drive lever. A neutral shifting control allows the user to engage and disengage the one-way clutch. The braking system includes a flexible brake linkage routed along the drive lever. The drive-ratio shifting, neutral shifting, and braking controls may all be situated proximate to a drive lever handle adjustably coupled to the drive lever.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 27, 2008
    Inventor: Sam Harwell Patterson
  • Patent number: 7328906
    Abstract: 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 to the frame. A crankshaft is rotatably coupled to the frame and releasably engages a pair of the wheels. The crankshaft rotates the associated pair of the wheels when the crankshaft is rotated with respect to the frame and engages the associated pair of the wheels. A pair of handle assemblies is operationally coupled to the crankshaft and pivotally coupled to the frame. One of the handle assemblies pivots in a direction opposite the other one of the handle assemblies in a substantially scissor like motion to rotate the crankshaft with respect to the frame.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: February 12, 2008
    Inventor: Jasminka K. Berkovich
  • Patent number: 7303202
    Abstract: 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 operator apply the power during the downward stroke of an up-and-down pumping action, and many of the operator's muscle groups are employed. Various drive ratios are provided, and the mechanism is simple with few components. A preferred embodiment is detailed in which the apparatus is used to propel a scooter.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: December 4, 2007
    Inventor: Joe W. Tucker
  • Patent number: 7296811
    Abstract: 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 with and engaging with the push ring depending on the force applied by the user. This invention provides kits comprising a device of this invention and instructions for assembling the device, instructions for using the device, and/or a device for the opposite side of the wheelchair. This invention provides methods for propelling a wheelchair. This invention provides non-axle-contacting, manual wheelchair propulsion devices for use by a wheelchair rider. The devices contact the push ring of a wheelchair in three or more locations.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: November 20, 2007
    Inventor: Frank P. Pettit