Class / Patent application number | Description | Number of patent applications / Date published |
180015000 | ADDITIONAL TRACTION WHEEL | 10 |
20080257617 | Traveling device - In a traveling device according to the present invention, self-support and conveyance of the device by dragging are facilitated. Two wheels | 10-23-2008 |
20100181122 | Hospital Bed With a Further Auxiliary Roller That Can Be Brought Into Contact With the Floor or Can Alternatively Be Driven - The invention relates to a hospital bed ( | 07-22-2010 |
20100258366 | SYSTEM AND METHOD FOR DRIVING HYBRID ELECTRIC VEHICLE - Disclosed are a driving system and method of a hybrid electric vehicle. The hybrid electric vehicle driving system includes a generator to generate electric energy from rotating power input thereto, and an electric motor to generate rotating power from electric energy supplied thereto. An auxiliary drive wheel is movably provided to be raised or lowered. When being lowered, the auxiliary drive wheel is rotated in contact with the ground surface, to provide the generator with rotating power generated upon rotation thereof. A power distributor is provided to distribute the rotating power generated from the electric motor or auxiliary drive wheel, so as to provide the generator with regenerative energy, or to provide a drive wheel with rotating power. A control unit controls distribution of the rotating power by controlling the supply of electric current to the power distributor. | 10-14-2010 |
20110186364 | OUTBOARD ELECTRIC DRIVE FOR VEHICLES - An outboard electric drive attachable to a vehicle having a hitch attachable to a passenger vehicle; a momentum switch capable of detecting acceleration and deceleration; a swing arm; an electric motor; a wheel secured to the swing arm and coupled to the electric motor; an electric storage battery; and a motor controller electrically cabled to the electric motor, storage battery, and momentum switch such that the outboard electric drive applies force in the direction of vehicle travel when the momentum switch senses acceleration and applies force in the direction opposite the direction of vehicle travel when the momentum switch senses deceleration and recharges the battery. The drive can be operated in manual mode using a switch to enable the application constant force. A swing arm raising and lowering system can be provided to raise the apparatus when not in use or when the vehicle is operating in reverse. | 08-04-2011 |
20110209932 | OMNI-DIRECTIONAL VEHICLE - [Task] Provided is a vehicle that can make tight turns without significantly changing an attitude of a rider, and is highly convenient in narrow places. | 09-01-2011 |
20120012408 | MOTORIZED TRACTION DEVICE FOR A PATIENT SUPPORT - A patient support including a traction device for powered movement of the patient support. | 01-19-2012 |
20120138374 | Device For Moving Vehicles - The present invention relates to a device and method for moving a disabled vehicle. More specifically, the invention includes a main frame assembly that is constructed and arranged for placement and adjacent to the outside portion of a vehicle wheel to allow one operator movement of the vehicle. An electric motor and battery(s) operate through a gear train to rotate an adapter plate in both forward and reverse directions. The adapter plate is constructed and arranged to cooperate with the lug nuts or wheel studs to provide rotation to the wheel upon operation of the electric motor. A hand or remotely operable controller is provided for the operation of the electric motor which allows for operation of the device while walking alongside or sitting at the driver's position within the vehicle. | 06-07-2012 |
20130299252 | AUXILIARY ROLLER - The invention relates to an additional roller having a rigid frame ( | 11-14-2013 |
20140262564 | TRACTION WHEEL APPARATUS WITH NON-UNIFORM TREAD TEETH - The present disclosure relates to a wheel apparatus that includes a rim module coupleable to an axle and a solid tire module that extends from the rim module. The solid tire module includes a plurality of tread teeth that form a peripheral edge. The peripheral edge forms at least a portion of a tire profile. Each tread tooth of the plurality of tread teeth has a spatial specification that includes a circumferential width, a radial height, an edge shape, and a circumferential gap width. The spatial specifications of the plurality of tread teeth are non-uniform. In one embodiment, the solid tire module has a non-circular rotational trace. In another embodiment, at least a circumferential region of the peripheral edge comprises a sequence of tread teeth having sequentially increasing radial height. | 09-18-2014 |
20160052575 | UTILITY VEHICLE - In a utility vehicle having a body and driven wheels rotatably fastened to the body, auxiliary driven wheels, having an outer diameter smaller than that of the driven wheels and a width equal to or smaller than that of the driven wheels, are coaxially fixed to the driven wheels. | 02-25-2016 |