U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6711769

Pillow with retractable umbrella

A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 280/442 - Wheel steering by articulative movement


Subclass of Class 280 - Land vehicles
Definition: Devices in which one or more of the vehicles has wheels
No. of patents: 117
Last issue date: 12/06/2011


1      
NumberTitleIssue Date
8070177Steer axle assembly
An improved steer axle assembly for a trailer is provided in which a tapered roller thrust bearing extends between each lower kingpin yoke thrust face and each lower kingpin sleeve thrust face to transfer load between the lower yoke sleeve and the kingpin sleeve whi...
12/06/2011
7926833All-wheels steer trailer
An all-wheel steer trailer is disclosed which includes front and rear axle beams which are pivotally mounted, above vertical axes, to the forward and rearward ends of a frame. In normal operation, the front and rear axle beams are interconnected so that the rear axl...
04/19/2011
7874571Trailer with four wheel steering and independent suspension
A trailer having a frame extending along a longitudinal axis and having a front end and a rear end, a steering linkage coupled to the frame, a pair of front wheel assemblies coupled to the front end of the frame, and a pair of rear wheel assemblies coupled to the re...
01/25/2011
7874570Tow behind steerable caddy trailer
A steerable caddy trailer is provided that has an improved structure including a main frame assembly, spindle assemblies attached to each end of the main frame for attachment of a wheel, a pair of swinging arms forwardly extending from the main frame and pivotally a...
01/25/2011
7810832Tow behind steerable caddy trailer
A steerable caddy trailer is provided that has an improved structure including a main frame assembly, spindle assemblies attached to each end of the main frame for attachment of a wheel, a pair of swinging arms forwardly extending from the main frame and pivotally a...
10/12/2010
7694993Trailer steering mechanism
The trailer steering mechanism automatically steers the wheels of a trailer in accordance with the tow vehicle steering and articulation between the tow vehicle and trailer during backing maneuvers in order to facilitate backing maneuvers and to prevent or greatly r...
04/13/2010
7686320Steering system for a tractor and trailer
A steering system for a tractor and trailer includes first and second sender cylinders which are turned 180° with respect to each other, and first and second receiver cylinders which are turned 180° with respect to each other. First and second front link members c...
03/30/2010
7394354Trailer presence detection system and method
A system and method of detecting a vehicle trailer. The method includes sensing a first vehicle condition that indicates a movement of the vehicle, and sensing a second vehicle condition that indicates an angle of the vehicle. The method also includes determining a ...
07/01/2008
7354222Belted asphalt compactor
A belted asphalt compactor and method are provided. The compactor includes a first unit with a roller frame. A second unit is coupled to the first unit, and is generally identical thereto. At least one mid roller and two end rollers are mounted in the roller frames,...
04/08/2008
7334645Articulated power transfer apparatus
A hitch apparatus for connection between a tractor and a trailing implement such as a cutter includes a hitch arm at one end of the apparatus extending forwardly and pivotal so as to extend either inwardly or outwardly thus offsetting the apparatus across the rear o...
02/26/2008
7300061Sulky for self-propelled machines
A sulky that includes a platform having a top and a bottom, a connector disposed upon a front of the platform, at least three wheels disposed upon the bottom of the platform in a wheel arrangement such that the connector is zero-weight bearing, and a seat disposed u...
11/27/2007
7219913Articulated vehicle wheel tracking mechanism
The invention provides a trailer for use as part of an articulated vehicle (15) with improved cornering characteristics. The trailer includes: a main chassis (18) connectable to a wheeled section (16) of the vehicle immediately ahead of the trai...
05/22/2007
7188011Automatic braking-enhanced steering system
A system for enabling a vehicle with a conventional steering system to make tighter right and left turns. The vehicle has one or more computers that monitor the steering angle and that are also capable of independently controlling a right braking unit and a left bra...
03/06/2007
7147241Steering device for towed implements
The present invention relates to a steering device for facilitating the steering of an implement towed by a work vehicle. The towed implement, for example, a farm implement such as a seeding device, comprises a main frame having front and rear ends and at least one ...
12/12/2006
7086660Forced steering device and trailer
The invention refers to a forced steering device of a vehicle, with a master cylinder, which extends between the vehicle-stationary point and a point following the steering movement and is connected to a slave cylinder coupled for the forced steering of a wheel. It ...
08/08/2006
7070247Method and apparatus for controlling brake-steer in an automotive vehicle in a forward and reverse direction
A system and method of controlling an automotive vehicle includes determining a forward direction and reverse direction of the vehicle and applying brake-steer in a forward position as a function of a first threshold and applying brake-steer in the reverse position ...
07/04/2006
7004272Child and adult transporting stroller system
A child and adult transporting stroller system is disclosed that provides an adult ride along function. The system includes a frame having a front and a rear and lateral sides, a child supporting seat mounted on the frame, ground engaging structure for engaging a gr...
02/28/2006
6938910Towing 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
6935453Four-wheel-drive vehicle
A four-wheel-drive vehicle includes: a body frame; a swing unit including a power unit, and a rear axle connected to the power unit so as to be driven by the power unit, the swing unit being supported on the body frame for vertical swing motion; a front reduction ge...
08/30/2005
6935092Power mower with stand-on and sit-down modes
A self-propelled power lawn mower for operation by an operator. The operator can operate the mower while standing on a foot platform, or alternatively when sitting down on a selectively deployable seat. Thus, the mower includes both sitting and standing modes. In ce...
08/30/2005
6932373Articulated pendulum steering system
An articulated pendulum steering system for an articulated vehicle having a front vehicle section and a rear vehicle section, the system including a vertical bearing pin supported by at least one movable joint support, and a movable joint pin supported by at least o...
08/23/2005
6889784Motorized chariot
A vehicle incorporating a power unit having a front portion, a rear portion and a power source. A drive wheel, disposed in the front of the power unit, is connected to the power source. A brake pad is connected to the power unit beneath the power source and a handle...
05/10/2005
6883821Controlled-articulation trailer with synchronized steering and a travelling top link tool bar hitch
A controlled articulation trailer with synchronized steering and a traveling top link three point tool bar hitch is disclosed. The controlled articulation trailer comprises a box-frame carriage having two separate but laterally aligned, wheeled axles near the back o...
04/26/2005
6874807Coupling device for a handling trolley
A coupling device for a handling trolley comprises a drawbar (22) arranged at the front of the trolley and designed to co-operate with the hook (24) provided at the back of a tractor, in particular a trolley preceding a line of trolleys. The drawbar (
04/05/2005
6854557Anti-jackknife control for vehicle-trailer backing up using rear-wheel steer control
A vehicle control system that selectively provides rear-wheel steering to prevent a vehicle-trailer from jackknifing during a back-up maneuver. The system senses a steering angle of the vehicle, a speed of the vehicle and a hitch angle between the vehicle and the tr...
02/15/2005
6827164Industrial truck
An industrial truck having a drive portion including wheels being connected to an electric motor being connected to a power source and a trailer portion having wheels. The industrial truck includes a steering system positioned on the drive portion connected to the t...
12/07/2004
6796572Method for steering a transport vehicle and apparatus therefor
A method and device for steering a heavy load transport vehicle includes a variable length strut which cooperates with a power steering valve. The length of the variable length strut changes as a function of tow bar rotation. This length variation is mechanically co...
09/28/2004
6641223Articulated hauler
An articulated hauler, such as a dumper, is disclosed. The hauler includes a vehicle part housing or carrying the drive engine, and a load-bearing vehicle part. The vehicle parts are pivotably interconnected about a vertical pin. The load-bearing vehicle ...
11/04/2003
6604753Rear wheel steering process
A method and apparatus for long vehicles to make sharp turns on city streets without running up on the curb. The back wheels of the vehicle are steered with the aid of a guide control wheel so that when the semi or truck is making a sharp turn, the rear w...
08/12/2003
6517097Towing device for an agricultural apparatus
A towing device for an agricultural apparatus (2), includes at least one wheel (6) which is arranged in a front area of the agricultural apparatus (2) and can rotate about an essentially horizontal wheel axle (8); a link arm (10) which is connected to the...
02/11/2003
6513825Coupling arrangement between a trailer and a pulling vehicle
A coupling arrangement between a trailer and a pulling vehicle wherein the pulling vehicle includes a first coupling plate on which the corresponding second coupling plate of the trailer is placed for obtaining locked coupling. The plates have low frictio...
02/04/2003
6494476Robotic vehicle that tracks the path of a lead vehicle
A method and apparatus for controlling the steering of a trailing section of a multi-sectioned vehicle is described. The trailing section follows the path of the first section. Data is acquired by a controller from sensors on the various sections. The con...
12/17/2002
6464427Road roller comprising at least one roller-wheel unit
The invention relates to a compactor comprising at least one drum unit (14, 15) in which a cylindrical drum (21) is rotationally mounted about its axle (40), the at least one drum unit (14, 15) being rotationally mounted about a steering axis (18) on a ch...
10/15/2002
6450524Apparatus for positioning steerable wheels
An agricultural implement, such as a baler comprises a main frame and a hitch for attachment of the implement to a towing vehicle. The frame is supported on a bogie comprising a pair of steerable wheels. A pair of hydraulic rams can block these wheels in ...
09/17/2002
6450523Steering method for a trailing section of an articulated vehicle
This invention relates generally to systems used to steer trailing sections of articulated vehicles and trailers. The preferred embodiment of this invention is a steerable dolly that can be manually and/or automatically switched among multiple modes. The ...
09/17/2002
6431564Add-on self tracking axle for a vehicle
The present invention is a self steering "add on" axle system for use with a vehicle such a dump truck in order to increase the legal weight capacity of the vehicle and provide effective steering in both the forward and reverse directions. The system comp...
08/13/2002
6431576System for steering towed implement in response to, or independently of, steering of towing vehicle
A steering system for a towed implement includes a first double-acting hydraulic actuator that is coupled between the towing vehicle and the towed implement such as that turning the towing vehicle relative to the towed implement results in fluid being for...
08/13/2002
6409199Rear wheel steering system
A method and apparatus for long vehicles to make sharp turns on city streets without running up on the curb. The back wheels of the vehicle are steered so that when the semi or truck is making a sharp turn, the rear wheels continue straight down the stree...
06/25/2002
6402177Hitch assembly for the front frame of an articulated construction machine
In many types of construction machines, the frame assembly comprises a rear frame that supports the engine and drive train components and a front frame that supports the work implement. In this type of machine, the two frames are normally pinned together ...
06/11/2002
6308976Steerable trailers
A multiple axle trailer is disclosed consisting of a main chassis articulated to a tractor unit and a sub-chassis relative to which the main chassis rotates on a turntable. The sub-chassis has a pair of forward wheel (3) and pair of rear wheels (4), each ...
10/30/2001
1      
 
Sign InRegister
Username  
Password   
forgot password?