Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7665748 | Driving mode switching apparatus and control method therefor A driving form switching apparatus enabling even a user of wheelchair who cannot freely use limb to easily change over a driving form by single hand self-operation. By using a differential gear mechanism or a combination mechanism comprising pinions and racks, the r... | 02/23/2010 |
| 7419172 | Knuckle arm for vehicles A knuckle arm includes a body having a bearing hole. A first connection plate extends from a rear end of one of two sides thereof so as to be connected with a brake pump. Two protrusions extend from a front end of the body, and two second connection plates are conne... | 09/02/2008 |
| 7383916 | All wheel steering with torque shaft linkage The entire right, title and interest in and to this application and all subject matter disclosed and/or claimed therein, including any and all divisions, continuations, reissues, etc., thereof are, effective as of the date of execution of this application, assigned,... | 06/10/2008 |
| 7347434 | Four-wheel steering assembly A steering assembly for a vehicle includes a forward apparatus positioned toward the front of the vehicle and having a first front wheel assembly and a second front wheel assembly. The steering assembly includes a gear having teeth and being pivotable about a pivot ... | 03/25/2008 |
| 7311161 | Hospital bed having a drive wheel unit A hospital bed includes a carrier frame, a driven wheel unit disposed below the frame, a motor unit, a drive wheel unit disposed below the frame and coupled operably to the motor unit in such a manner that actuation of the motor unit results in rotation of the drive... | 12/25/2007 |
| 7207403 | Transportable power wheelchair A transportable power wheelchair is provided which employs a variety of detachable modules to facilitate transportation and storage. The wheelchair may be readily disassembled/reassembled by a single individual without assistance and/or the need for special tools. T... | 04/24/2007 |
| 7178813 | Scooter A scooter is described herein having control cables for use in guiding the scooter. In the preferred embodiment a cable is used to straighten the rear wheels which are connected in tandem and a steering column with a t-top is used to steer the front wheels. In an al... | 02/20/2007 |
| 7137641 | Trailer apparatus A trailer train apparatus is disclosed that is comprised of a plurality of trailers connected end-to-end. At least some of the trailers are wheeled trailers with steerable wheels. The train includes opposing end trailers that each have tongues that enable the train ... | 11/21/2006 |
| 7055880 | Apparatus and method to facilitate maintenance of a work vehicle An arrangement of equipment elements to facilitate the maintenance of a work vehicle. The work vehicle has a support structure with a power source mounted on an end of the support structure and a vehicle body mounted on the support structure and enveloping at least ... | 06/06/2006 |
| 6938910 | Towing carriage The invention relates to a tow carriage, especially for towing motorcars with the aid of a motor-cycle (2) or some other small vehicle. The carriage (1) comprises at least two wheels (3, 4 and 5, 6) which supported are steerable by means ... | 09/06/2005 |
| 6910424 | Movable model train car parts to aid model train maneuverability as it travels on model railroad track A model electric train car possessing various movable parts which allow the train car's pivotally-mounted truck and coupler assembly to maneuver around tight curves without interference from model train steps, skirts or other train car parts in close proximity to th... | 06/28/2005 |
| 6874800 | Hospital bed wheel linkage apparatus A patient support including a linkage assembly providing communication between at least one front wheel and at least one rear wheel. ... | 04/05/2005 |
| 6571160 | Rear-wheel steering angle control device The present invention provides a rear-wheel steering angle control device which is capable of drastically reducing the man-hours required for setting a gain of a target rear-wheel steering angle relative to a front-wheel steering angle. The rear-wheel ste... | 05/27/2003 |
| 6520642 | Camera dolly A camera dolly has a steering unit which provides conventional, crab, and round steering modes, selected by the operator via use of a single steering/shifting handle. The steering unit includes first and second transmissions and a differential. Chains lin... | 02/18/2003 |
| 6401559 | Differential for dolly, particularly for shooting in the TV and movie field A differential for dolly , particularly for shootings in the TV and movie fields, comprising a first inlet axis, coupled with a selection and control bar, provided on the dolly, for the selection of one of the two steering wheels, four steering wheels or ... | 06/11/2002 |
| 6231060 | Vehicle with controlled running wheels The vehicle with controlled running wheels according to this invention comprises a steering system with a reference-unit element and units for matching of wheels turn angles. Each of the matching units incorporates a tracer pin and guide slot. The number ... | 05/15/2001 |
| 6135465 | Camera dolly A camera dolly has a steering unit which provides conventional, crab, and round steering modes, selected by the operator via use of a single steering/shifting handle. The steering unit includes first and second transmissions and a differential. Chains lin... | 10/24/2000 |
| 6131689 | All-wheel-steer biasing mechanism An all-wheel-steer biasing mechanism having a torsion biasing spring which engages a rear wheel pivot plate between the rear wheel tie rods for biasing the rear wheel steering linkage back to a position corresponding to straight forward travel.... | 10/17/2000 |
| 6109626 | Camera dolly A camera dolly has a steering unit which provides conventional, crab, and round steering modes, selected by the operator via use of a single steering/shifting handle. The steering unit includes first and second transmissions and a differential. Chains lin... | 08/29/2000 |
| 6105982 | Children's ride-on vehicle with four-wheel steering A children's ride-on vehicle is provided with a chassis having a seat configured to accommodate a driver. The chassis includes a generally vertical, cylindrical channel extending therethrough. A handlebar is disposed in front of the seat and is operable b... | 08/22/2000 |
| 5899482 | Steering mode switching carriage A novel steering mode switching carriage is disclosed. A plurality of such carriages, if coupled to each other, can follow a single path without developing any discrepancy in turning radius between front and rear inner wheels when traveling on a curve. Th... | 05/04/1999 |
| 5873592 | Self-steering trailer A trailer assembly to be drawn by a towing vehicle is provided. The trailer assembly includes a frame having a front end, a rear end, and a central axis. A tongue has one end attached to the frame front end, the other end of the tongue is adapted for remo... | 02/23/1999 |
| 5862874 | Steering mechanism for short wheelbased four-wheeled vehicles A steering mechanism for a wheelchair which minimizes the turning radius of the wheelchair providing good maneuverability while also minimizing the misalignment of each of the wheels. The steering mechanism substantially comprises a flat plate defining ca... | 01/26/1999 |
| 5727644 | Parallel-aligned all-wheel steered vehicle II An all-wheel steered vehicle in which all wheels are always parallel and have an equal role in steering the vehicle. It consists of a plurality of wheel assemblies capable of wheel rotation about the wheel's axis. The shaft of each wheel assembly (14) pas... | 03/17/1998 |
| 5623818 | Rotatable in place powered vehicle for steering around abutments A rotatable-in-place, powered riding vehicle typically may be used as a lawnmower, garden tractor, wheelchair, or warehouse utility truck. Its simplified construction and operator controls facilitate steering maneuverability. Thus the vehicle can be used ... | 04/29/1997 |
| 5559698 | System for dynamically adjusting the toe angle of vehicle wheels The invention is a system and method for dynamically adjusting the positions of the front and rear wheels of an automotive vehicle comprising first and second accelerometers disposed to sense the acceleration of front and rear wheels and to generate first... | 09/24/1996 |
| 5531466 | Vehicle having a four-wheel steering device A four-wheel steering vehicle having a body frame, front and rear wheels steerable by a steering wheel, and a connecting mechanism for transmitting movement of the steering wheel to the front and wheels. The connecting mechanism includes a pitman arm over... | 07/02/1996 |
| 5488995 | Mobile fire apparatus having hose coupling-vehicle brake interlock A fire fighting vehicle provides the capability to access obstructed areas, to quickly connect to fire water sources, to discharge large amounts of water and/or foam to fight major industrial fires, and to be capable of repositioning while fighting these ... | 02/06/1996 |
| 5379220 | Electronic steering control Vehicles having front and rear steerable wheels (14,16) and a plurality of steering modes are commonly used in many applications. A vehicle (10) includes a steering input device (24) having a plurality of positions corresponding to the desired rate of tur... | 01/03/1995 |
| 5375863 | Electronic steering mode shifter A steering compensator has a shaft with a first shaft section offset from a central shaft section. A second shaft section of the shaft is offset from the first and central shaft sections. A first drive member is rotatably attached to the first shaft secti... | 12/27/1994 |
| 5318313 | Camera dally and pedestal A camera pedestal has a cylinder with a tapering cross-section for providing a uniform counterbalancing force using a compressed gas. Telescoping column sections which make up a column assembly have inner relief channels and outer slots for hardened rolle... | 06/07/1994 |
| 5288091 | Four wheel steering apparatus A four wheel steering system for a vehicle which significantly reduces or eliminates scrubbing of the outside tires. A preferred embodiment is specially adapted for use on riding lawn mowers, and includes a longitudinally moveable cam plate having a pair ... | 02/22/1994 |
| 5174593 | Camera dolly A steering compensator has a shaft with a first shaft section offset from a central shaft section. A second shaft section of the shaft is offset from the first and central shaft sections. A first drive member is rotatably attached to the first shaft secti... | 12/29/1992 |
| 5174595 | Four wheel steering mechanism A vehicle having a frame and front and rear pairs of wheels that are pivotal to steer the vehicle. A mower deck is operatively carried beneath the vehicle frame and between the front and rear pairs of wheels. A linkage mechanism operatively couples the fr... | 12/29/1992 |
| 5154437 | Vehicle steering system with independent steering for each wheel In a steering mechanism wherein the turning angle of a steering wheel is transmitted to a wheel via a link mechanism employing a tire rod (3) and a knuckle arm (4), the link mechanism and the wheel (1) are coupled by a multiplying gear (2). Individual dri... | 10/13/1992 |
| 5139279 | Parallel-aligned all-wheel steered vehicle An all-wheel steered vehicle in which all wheels are always parallel and have an equal role in steering the vehicle. It consists of a plurality of wheel assemblies capable of wheel rotation about the wheel's axis and wheel assembly rotation about the whee... | 08/18/1992 |
| 5137292 | All-wheel steering for motor vehicles An all wheel steering arrangement having a coupler lever mechanism between the front-wheel steering and rear-wheel steering. The transmission ratio between the steering angle of the front wheels and the steering angle of the rear wheels is controllable, t... | 08/11/1992 |
| 5090512 | Four-wheel coordinated steering multi-purpose tractor A four-wheel mobile vehicle including provision for controlling the steering position of each of the four (4) wheels so that every wheel's rolling axis will intersect at a common point around which the vehicle will turn. The control is provided by a pair ... | 02/25/1992 |
| 5090719 | Four wheel steering trailer A trailer having front and rear pairs of wheels, each wheel being rotatably supported on a knuckle arm having a pivotal shaft tilted inwardly for biasing the wheel to a straight line position, a front tow bar pivotally mounted on a front steering member p... | 02/25/1992 |
| 5026081 | Rear wheel steering system having toe error compensation A rear wheel steering mechanism capable of independently positioning the rear wheels of a vehicle also independently corrects the toe error of each steered wheel. In the preferred embodiment, each rear wheel is steered by a separate actuator. The overall ... | 06/25/1991 |
