| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 280244000 | Oscillating lever | 19 |
| 20080238022 | Wheelchair drive system with lever propulsion and a hub-contained transmission - 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. | 10-02-2008 |
| 20080277896 | Swing Powered Scooter - 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. | 11-13-2008 |
| 20100264621 | 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 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. | 10-21-2010 |
| 20100320719 | ERGONOMIC WHEELCHAIR PROPULSION SYSTEM - 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. | 12-23-2010 |
| 20110187074 | PROPULSION APPARATUS - Propulsion apparatus which is mountable to the wheel ( | 08-04-2011 |
| 20110187075 | WHEELCHAIR DRIVING APPARATUS - 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. | 08-04-2011 |
| 20130015632 | WHEELCHAIR WITH LEVER DRIVETRAIN - 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. | 01-17-2013 |
| 20140306421 | Human Propulsion System - 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. | 10-16-2014 |
| 20160015580 | LEVER-OPERATED WHEELCHAIR - In one embodiment, a wheelchair drive mechanism adapted to mount to a wheelchair includes a drive lever adapted to be rotated forward and rearward by a user of the wheelchair, a clutch mechanism associated with the drive lever, wherein actuation of the clutch mechanism causes the drive lever to be coupled to a wheel of the wheelchair such that they rotate together, and a clutch actuation device provided on the drive lever that is operable by the wheelchair user to actuate the clutch mechanism. | 01-21-2016 |
| 280245000 | Rack and pinion | 1 |
| 20110298194 | Road Skeez - A transport device for transporting a user may include a first riding platform to support a user and to propel the user, a second riding platform being opposed to the first riding platform to support the user and to propel the user, and a leading traverse frame member to connect the first platform with the second platform. The leading traverse frame member may allow the first rider platform to move radially and to move axially with respect to the second rider platform. The first riding platform may be connected to the second riding platform with a trailing frame member, and the trailing frame member may allow the first platform to move axially and move radially with respect to the second riding platform. The leading frame member may include a ball clevis, and the trailing frame member may include a ball clevis. The transport device may include a handle to propel the transport device, and the handle may be connected to a rack and pinion device. | 12-08-2011 |
| 280246000 | Linkage and ratchet | 6 |
| 20100038879 | POWER TRANSMISSION OF LAND ROWING MACHINE - A power transmission device of a land rowing machine which generates a propelling force to be applied to wheels by pulling and pushing levers or moving a seat forward and backward is disclosed. The levers having uni-directional ratchet wheels A are installed at opposite ends of a motive shaft which passes through a side surface portion of the propelling part. A seat lever which has a uni-directional ratchet wheel B in the same direction as that of the uni-directional ratchet wheels A and interlocks with the seat is disposed on the motive shaft between the levers. A passive gear which is engaged with a motive gear installed on the motive shaft is installed on a passive shaft with the rear wheel part mounted thereon. | 02-18-2010 |
| 20100044995 | QUICK BOARD WITH HANDLE TO OPERATE DRIVING POWER OF FRONT WHEEL - A quick board with a handle to operate the driving power of a front wheel is used for leisure, taste and amusement activities of teenagers, adults, children and others. In the quick board according to the present invention, the driving power to drive a front wheel is operated by only a handle of the quick board, thereby strengthening the muscular strength of the arms and waist of a user and minimizing the components of the quick board to avoid the complicated configuration in appearance. When a child who has a difficulty in pivoting a driving frame forward and backward operatively connected to a handle part to drive the front wheel uses a quick board, a front wheel cover part of a main body frame and the driving frame are selectively fixed so that such a user can enjoy the quick board in a stable and safe state. | 02-25-2010 |
| 20110309596 | Arm powered cycle/vehicle for paraplegics - The proposed invention is a human powered cycle/vehicle which utilizes a reciprocating arcuate linear handlebar motion to operate a double acting asynchronous propulsion mechanism which imparts constantly proportional input versus output motion to its' surface engaging propulsion wheel(s). The propulsion mechanism contains a complex mechanism which causes both backward and forward motions of a set of handlebars to propel the machine forward. A drive-train clutch ( | 12-22-2011 |
| 20120061939 | WHEEL CHAIR WITH A MANUAL DEVICE TO GIVE HIM/HER A BETTER MOBILITY - The present invention is a wheelchair with a pair of levers on either side that actuate a reciprocating gear-ratchet assembly for moving the wheelchair when the levers are moved. | 03-15-2012 |
| 20130062857 | WHEELCHAIR WITH LEVER DRIVETRAIN - 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. | 03-14-2013 |
| 20140353939 | BICYCLE DRIVEN BY HANDS - The invention discloses a bicycle, which comprises a handlebar assembly ( | 12-04-2014 |
| 280247000 | Linkage and crank | 3 |
| 280248000 | With gearing | 3 |
| 20100156063 | Wheelchair Lever Drive System - A manual propulsion mechanism for wheelchairs utilizes a lever pivotally mounted to the hub of each rear wheel such that the wheelchair user can propel the chair with push/pull movements of the levers. Forward and reverse propulsion directions are accomplished by a system of one-way reversible clutches contained in the propulsion wheel hubs which also allow the levers to be operationally disconnected such that the chair can freewheel. Operator control of direction shifting is through pivoting motions imparted to the grip handles of the propulsion levers. In a preferred embodiment, improved ergonomics for propulsion direction changes are made possible by coordinating the direction of the shift pivot motion with the push/pull movement of the levers. This allows the operator to retain a comfortable, stable grip on the grip handle while simultaneously propelling and controlling direction of movement. | 06-24-2010 |
| 20110169244 | WHEELED VEHICLE DRIVE MECHANISM WITH HAND LEVER ARM - 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. | 07-14-2011 |
| 20120299267 | Self Propelled Hand Vehicle - A hand propelled vehicle comprising a frame ( | 11-29-2012 |
