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Class 280/90 - Fluid


Subclass of Class 280 - Land vehicles
Definition: Devices in which the checking means comprises a fluid mechanism.
No. of patents: 58
Last issue date: 05/25/2010


1    
NumberTitleIssue Date
7722061Steering dampers and vehicles including same
A steering damper includes a cylinder housing, a piston, a piston rod, and a valve member. The cylinder housing includes an inner surface and the inner surface defines an inner area. The piston is at least partially disposed within the inner area and is movably enga...
05/25/2010
7380804Vibration damping apparatus for steering systems
Disclosed herein is a vibration damping apparatus for steering systems. The vibration damping apparatus of the present invention includes a fluid-filled chamber which is provided between upper and lower shafts, an upper actuating member which has a female bladed par...
06/03/2008
7318592Motorcycle steering damper
According to the invention, there is provided a steering damper (10) in which the interior of a cylinder (12) is divided into two oil chambers (A), (B) by a piston (14) which slides in the cylinder (12) as a steering operation takes place...
01/15/2008
7316418Elastic coupling
An elastic coupling capable of sufficiently absorbing a shake of a steering shaft in its axis direction to prevent a driver from feeling uncomfortable due to the shake is provided. A rubber elastic body including lubricant is provided between an outer circumference ...
01/08/2008
7306248Steering damper device
A steering damper device having a cylindrical damper disposed between a steering side member and a vehicle body side member, wherein said cylindrical damper includes a damper casing and a damper rod which is slidably displaced in the damper casing. The amount of sli...
12/11/2007
7296651Power steering system frequency suppressor
A frequency suppressor for a hydraulic system is shown and described. The frequency suppressor comprises a housing that contains a substantially fixed mass of a compressible substance. The volume of the compressible substance is varied to dampen frequency disturbanc...
11/20/2007
7232007Method for operating a power-assisted hydraulic steering system in a motor vehicle
A method of operating a power-assisted hydraulic steering system of a motor vehicle having a hydraulic pump mechanically driven by a vehicle drive assembly, and having an additional function which reduces the amount of power assistance at a high driving speed in com...
06/19/2007
7219908Steer wheel control system with stationary piston and reciprocating cylinder
A steering system control apparatus having a centering unit for resisting off-center movement of the steer wheels of a vehicle and returning them to a selected center position after each such movement. A centering shaft is connected to the steering shaft of a vehicl...
05/22/2007
7213676Power steering system
In a power steering system employing a power cylinder for steering assistance, hydraulic pressure is supplied through a pair of fluid lines to respective hydraulic chambers of the power cylinder. Check valves are provided to charge a hydraulic pressure in a communic...
05/08/2007
7207579Precision steer wheel control system with external solenoid
A steer wheel control system having a centering unit for holding center by resisting off-center movement of the steered wheels of a vehicle and returning them to a selected center position after each such movement, and a trim unit for remotely varying the selected c...
04/24/2007
7207580Precision steer wheel control system with remote trim valve assembly
A steer wheel control system having a centering unit for holding center by resisting off-center movement of the steered wheels of a vehicle and returning them to a selected center position after each such movement, and a trim unit for remotely varying the selected c...
04/24/2007
7118118Steer wheel control system with dual pistons connected to a common shaft
A steering system control apparatus for resisting off-center movement of the steer wheels of a vehicle and returning them to a selected center position after each such movement. A centering shaft is connected to the steering shaft from a steering gear for rotational...
10/10/2006
6965820Robust steering-pull torque compensation
A controller (32) for a vehicular system (10) that includes a hand-wheel (16) and an electric motor (34) includes a torque-assist function (56) responsive to a signal representing the torque applied to the hand-wheel (16) fo...
11/15/2005
6929334Caterpillar track tension management
A management system is disclosed for controlling the tension of an endless track by regulating the hydraulic pressure in a hydraulic jack acting on a roller serving to tension the track. The tension management system comprises two accumulators of different capacity ...
08/16/2005
6910699Magnetorheological fluid brake and force-feedback system for a steering mechanism
A magnetorheological fluid brake utilizing a positive displacement fluid pump adapted to pump a magnetorheological fluid through a viscosity regulator. The viscosity regulator is adapted to controllably vary the viscosity of the magnetorheological fluid, altering th...
06/28/2005
6848698Saddle-ride type vehicle steering damper apparatus
If a steering damper is fixed to a top bridge, since the steering damper is comparatively heavy and the top bridge is on the steering side, steering inertia increases. An arrangement structure of the steering damper which does not greatly influence the steering iner...
02/01/2005
6842671Systems and methods for controlling handling characteristics of a tire
One embodiment of the present invention relates to systems and methods for controlling handling characteristics of a tire. Another embodiment of the present invention relates to a tire having controllable handling characteristics. ...
01/11/2005
6817620Precision steer wheel control system with internal solenoid
A steer wheel control system having a centering unit for resisting off-center movement of the steered wheels of a vehicle and returning them to a selected center position after each such movement, and a trim unit for remotely varying the selected center position. A ...
11/16/2004
6752425Semi-active control of automotive steering system vibration with magneto-rheological damping
A magnetorheological (MR) vibration damper for damping axial and rotational vibrations of an automotive steering system may include a housing encasing MR fluid therein and a gear-like rotor and orifice plate disposed within the housing. The rotor and orifice plate, ...
06/22/2004
6681883Method and apparatus for suppressing vibration in vehicle a steering system
A system for reducing steering nibble and other vibrations in a power-assisted steering system increases the amount of damping force when a power steering boost system is applying little or no steering force to the steering actuator, and reduces the amoun...
01/27/2004
6679508Flexible no-lash drive plate
The subject inventive steering damper assembly includes a rotor sleeve having open first and second ends and a drive plate disposed in the open second end. A core is co-axially disposed in the rotor sleeve closing the open first end of the rotor sleeve an...
01/20/2004
6637558Magnetorheological steering damper
A damper for dampening vibrations of a rotatable steering shaft of a motor vehicle comprises a rotor and means for rotating the rotor at a rate proportional to and greater than rotation of the steering shaft. Magnetorheological fluid is disposed at least ...
10/28/2003
6520520Steering stabilizer with trimming accumulator
A linkage assembly (10) of remotely adjustable length extends between a steerable member (17) and a frame member (12) to define the center position of the steerable member (17). The linkage assembly includes a resistance assembly (30) for providing a resi...
02/18/2003
6520519Trimming apparatus for steer wheel control systems
A steering linkage assembly (10) having a resistance assembly (30) for resisting turning movements of a steerable member (17), and a trim assembly (28) for remotely adjusting the length of a linkage (10) between the steerable member (17) and a frame membe...
02/18/2003
6491313Variable damper assembly
A variable damper assembly 10 is provided for use with a vehicle power steering system and includes a variable orifice valve 20 which controls the flow of fluid between one chamber side 30 of the damper assembly to another chamber side 32 of the damper as...
12/10/2002
6422582Center holding assembly for vehicle steering systems
A linkage assembly of variable length extends between a steerable member and a frame member to define the center position of the steerable member. The linkage assembly includes a resistance assembly for providing a resistance force resisting forces tendin...
07/23/2002
6276740Method of securing components together and a structural member made by said method
A method of securing two or more components together is disclosed in which one of the members is made from a thin wall tubular material that can be expanded by a hydroforming technique to cause deformation which is used to secure one or more components (1...
08/21/2001
6272947Steering shaft centering assembly
A steering shaft centering assembly for resisting off-center movement of the steerable wheels of a vehicle and for returning them to a selected center position after each such movement. The centering assembly includes a screw member connected between an i...
08/14/2001
6120046Hydraulic torsional damper for a steering system
A torsional damper significantly reduces vibrations in a steering system of a motor vehicle. The torsional damper (12) includes a housing (30) defining an interior (42) and flanges (34) for secure attachment to a structural member (28) of the motor vehicl...
09/19/2000
6026924Steering gear
An assembly for turning steerable wheels of a vehicle upon manual rotation of a steering wheel (12) includes a steering member (14) which is axially movable to effect turning movement of the steerable vehicle wheels. A housing surrounds at least a portion...
02/22/2000
6003887Rotary centering compensator for vehicle steering systems
A centering compensator for resisting movement of the steerable wheels of a vehicle to either side of a selected center position, and for returning them to this center position after each such movement. The apparatus includes a cam follower member connect...
12/21/1999
5816594Steering column centering assembly
A steering column centering assembly for resisting off-center movement of the steerable wheels of a vehicle and for returning them to a selected center position after each such movement. The centering assembly includes a screw member connected between inp...
10/06/1998
5620194Self-steering suspension lockout mechanism
A lockout mechanism for a self-steering axle suspension system is provided by using the internal fluid reservoir and piston of a shock absorber normally used to dampen oscillations of the wheels in such a suspension, by employing a selectively actuatable ...
04/15/1997
5536028Power centering compensator for vehicle steering systems
A power centering apparatus for resisting off-center movement of the steered wheels of a vehicle and returning them to a selected center position after each such movement. The apparatus includes a centering unit for providing the resistance to off-center ...
07/16/1996
5527053Detent centering compensator for vehicle steering systems
A compensating apparatus resists movement of the steered wheels of a vehicle to either side of a selected center position, and returns them to this center position after such movement. The apparatus includes a cam member connected to the steered wheels fo...
06/18/1996
5516133Steering stabilizer for bicycles
A steering stabilizer for bicycles utilizing a hydraulic fluid. A stabilizer body is secured to the frame of the bicycle. The stabilizer body has a hydraulic reservoir which is in the shape of an arc. A vane is supported by the stem of the bicycle which t...
05/14/1996
5313389Fail-safe mechanism for vehicle stability augmentation steering system
The steering stability of a moving vehicle is maintained by measuring an actual yaw rate of the vehicle and determining a desired yaw rate of the vehicle and producing an output signal in response to a comparison of the actual and desired yaw rates. The s...
05/17/1994
5280939Steering control systems for "C" dollies and the like
In "C" dolly systems, it is conventional to provide a resistance to steer of approximately 0.3 G in order to improve the steering thereof particularly in an evasive action and to decrease the tendency of high speed off tracking. The higher this resistance...
01/25/1994
5269546Self-steering assembly
A self-steering assembly for self-steering wheels used on trucks carrying heavy loads includes a kingpin arm unit with a unitary adaptor collar at one end for mounting on a conventional tubular axle and a knuckle at the other end for retaining the clevis ...
12/14/1993
5221100Trailer frame with stabilized caster swivel
A cargo trailer for towing behind another vehicle has a cargo container platform and a stabilized caster swivel assembly supporting the cargo container platform. The swivel assembly includes an elongated frame, a caster wheel on a swivel member being rota...
06/22/1993
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