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| Number | Title | Issue Date |
| 8087646 | Hydropneumatic suspension with load-dependent damping control A piston-cylinder unit for installing between a vehicle body and an axle includes a cylinder filled with damping medium, a piston dividing the cylinder into working spaces, and a piston rod. A first damping valve assembly in the piston damps movement of the piston i... | 01/03/2012 |
| 7722017 | System and method for determining appropriate conditions for leveling a vehicle having an air suspension system A method of determining appropriate conditions for leveling a vehicle having a height adjustable air suspension system. The method includes the steps of providing an acceleration-determining device adapted to output a signal associated with an acceleration of the ve... | 05/25/2010 |
| 7377501 | Aerostatic suspension system for rolling equipment and vehicles An aerostatic suspension system (1) for rolling equipment and vehicles that takes advantage of atmospheric pressure to create, via cylinder and piston sets, forces that are transmitted by levers having an adjustable point of application of force and that at t... | 05/27/2008 |
| 7360777 | Vehicle suspension system A vehicle suspension system for a vehicle, including: (a) a plurality of suspension cylinders each disposed between a chassis-side member and a corresponding one of a plurality of wheel-side members; (b) a controller cylinder including a housing and at least one pis... | 04/22/2008 |
| 7357290 | Workpiece support structures and system for controlling same In accordance with one aspect of the present exemplary embodiment, set forth is a welding system including a plurality of adjustable welding support structures positioned in relationship to each other to permit welding of a workpiece held by a plurality of adjustabl... | 04/15/2008 |
| 7357395 | Device for controlling suspension performance of a vehicle having variable axle loads A device for controlling suspension performance in a vehicle having variable loads on an axle, a level control system, and a hydropneumatic suspension apparatus between unsprung and sprung masses. The device includes at least one double-acting hydraulic cylinder hav... | 04/15/2008 |
| 7344127 | Self-pumping hydropneumatic spring strut with internal level control The self-pumping hydropneumatic spring strut with an internal level control includes a cylinder having a high-pressure chamber and a low-pressure chamber, both chambers being at least partially filled with oil, the high-pressure chamber further comprising a gas cush... | 03/18/2008 |
| 7322435 | Snowmobile suspension system To enable a rider to control in real time the type of ride he desires, a snowmobile is equipped with a suspension system that includes at least one fluid actuated device which can be adjusted in real time to control the relative distance between the body of the snow... | 01/29/2008 |
| 7273138 | Damping force variable valve and shock absorber using same A damping force variable valve includes a main valve provided between a high pressure section and a low pressure section, for allowing a flow of oil from the high pressure section into the low pressure section when the main valve is opened, the main valve being capa... | 09/25/2007 |
| 7270317 | Fluid suspension member having grooved inlet A fluid suspension member having a flexible wall at least partially defining a fluid chamber and having a passage formed therethrough. A connector fitting is received within the passage, and a groove extends into the flexible wall adjacent the passage. A method is a... | 09/18/2007 |
| 7246862 | Compressed air treatment device that is designed to be installed in an industrial vehicle A compressed air treatment device is designed to be installed in an industrial vehicle consisting of a motor vehicle that can pull a trailer. The device comprises a set of electropneumatic components that are controlled by an electronic command/control unit which is... | 07/24/2007 |
| 7226057 | Apparatus and method for automatically leveling an object A method and apparatus for automatically leveling a vehicle is provided, employing air springs, a sensor and a controller. The air springs are each mounted to the vehicle, and each can be at least partially inflated to provide suspension for the vehicle. Each of the... | 06/05/2007 |
| 7219779 | Hydro-pneumatic suspension system A hydro-pneumatic suspension system includes one or more hydraulic suspension cylinders mounted between the vehicle body and the axle. Each cylinder includes a piston chamber and rod chamber, each of which are connected to an accumulator and which can be connected t... | 05/22/2007 |
| 7204478 | Height control valve with universal mounting for a suspension system A height control valve for use in a vehicle suspension system for controlling the ride height of the trailer, the height control valve provided with a universal mounting for allowing greater flexibility in the mounting of the height control valve to a vehicle frame,... | 04/17/2007 |
| 7192012 | Air suspension system with supply air restriction valve A control system, primarily for use with a vehicle, which increases ride stability and minimizes cycling of the control system during normal operation of the vehicle by utilization of a restriction valve to restrict the fluid introduced into or exhausted from a flui... | 03/20/2007 |
| 7192033 | Trailing arm suspension and height control system with motorized valve therefor A trailing arm suspension for a vehicle. The trailing arm suspension having a height control system for controlling the ride height of the suspension relative to the vehicle. The height control system preferably comprises a motor driven height control valve. ... | 03/20/2007 |
| 7163208 | Hydropneumatic suspension system for vehicles A hydropneumatic suspension system for a vehicle with a level control, in particular for the front axle of a tractor, includes a first 2/2 directional control valve having a regulating-up function communicating with the pressurized oil pump and a second 2/2 directio... | 01/16/2007 |
| 7150450 | Vehicle suspension damper with integral height leveling valve An air spring suspension damper assembly includes a first housing and a second housing which telescope relative to each other. An actuating member such as a cable is connected to a height leveling valve contained in one of the housings and attached to the other hous... | 12/19/2006 |
| 7146261 | Vehicle control system for exiting ruts A vehicle control system adapted to facilitate exiting of ruts includes an active steering system having a steerable wheel defining a steering angle. The active steering system also includes a steering wheel providing a driver input control angle, the active steerin... | 12/05/2006 |
| 7139621 | Floating deadband control A control system having a floating deadband control includes an input device moveable from a first position to a second position. In addition, the control system includes a controller configured to automatically generate a first electronically defined deadband about... | 11/21/2006 |
| 7131654 | Vehicle suspension system A vehicle is carried by a number of supporting members, such as wheels. Movement between the supporting members and the vehicle body is controlled by respective dampers. Several interrelationships between and among the dampers are disclosed. A flow regulator is prov... | 11/07/2006 |
| 7108253 | Mounting assembly A mounting apparatus for use within a suspension system having a frame member, a control arm, and an elongated suspension member extending between the frame member and the control arm is disclosed. The mounting apparatus includes a cup, a seal, a resilient element, ... | 09/19/2006 |
| 7077227 | Controlled truck cab suspension A suspension system, typically for use between a cab and an associated truck frame, including a s strut module having a strut, an air spring and a control module. The control module is connected to a source of pressurized air, is integral with the strut and includes... | 07/18/2006 |
| 7077226 | Controlled truck cab suspension system The invention is a suspension system, typically for use between a cab and a truck frame, includes a strut module having a strut and an air spring, and a control module, connected to a source of pressurized air, for sensing a distance between the cab and truck frame ... | 07/18/2006 |
| 7070028 | Frequency dependent damper A gas shock absorber has a pressure tube which defines a working chamber. A piston divides the working chamber into an upper working chamber and a lower working chamber. A flow path extends through the piston to provide fluid communication between the upper and lowe... | 07/04/2006 |
| 7055831 | Hydropneumatic, level-regulated axle suspension on vehicles, in particular for full-suspension vehicles A hydropneumatic, level-regulated axle suspension for the front wheel axle and rear wheel axle on vehicles, in particular vehicles whose large axle load spread is large, having two double-acting hydraulic suspension cylinders, whose cylinder spaces are each connecte... | 06/06/2006 |
| 7048280 | Hydropneumatic axle suspension for vehicles having greatly varying axle loads A hydropneumatic axle suspension for vehicles having greatly varying axle loads, in particular for front axles on tractors having hydraulic suspension cylinders, which are connected to hydropneumatic accumulators having a suspension circuit Z of the cylinder chamber... | 05/23/2006 |
| 7032895 | Closed level control system for a vehicle with the system having two pressure stores In a closed level control system for vehicles, a vehicle body is suspended relative to at least one vehicle axle. The level control system includes pressurized medium chambers, a compressor, an air dryer and a pressurized medium supply vessel which is partitioned in... | 04/25/2006 |
| 7028996 | Vehicle suspension system and height control valve therefor A height control valve for controlling the relative height between a vehicle frame and a trailing arm suspension. The height control valve comprises a housing defining an interior chamber and having an inlet port fluidly connecting to a source of pressurized air. An... | 04/18/2006 |
| 7025367 | Adjustable air cushion bicycle seat An adjustable air cushion bicycle seat hydraulic ram system mounted within the seat post of a bicycle with one end of the ram attached to the bicycle seat, and the other end of the ram in communication with an internal reservoir associated with an adjustable pressur... | 04/11/2006 |
| 7025184 | Hydraulic shock absorber with self leveling function for vehicle height A hydraulic shock absorber with a self leveling function for a vehicle height is provided to prevent drop of a relief valve even if an excessive impulsive pressure is applied thereto. The relief valve is provided with a tubular valve case which is press-fitted into ... | 04/11/2006 |
| 7017928 | Bicycle A bicycle in one embodiment includes a frame and at least one adjusting device for adjusting at least one of a height of a saddle and a steering stem. The adjusting device includes a double-acting piston/cylinder assembly with a first cylinder chamber and a second c... | 03/28/2006 |
| 7017893 | Pull-type suspension A suspension unit used in a pull type shock application is disclosed, whereby a main shaft passes completely through a damping fluid so that the shock absorber fluid is not compressed when the shock shaft is displaced. The shaft also acts on a compression spring by ... | 03/28/2006 |
| 6948721 | Variable leveling valve apparatus for a vehicle The invention is disclosed to variably control the amount of compressed air flowing per unit hour depending on the change in the level position of the wheel axles in a moving vehicle when the compressed air flows into air springs from the leveling valve or when the ... | 09/27/2005 |
| 6935625 | Air suspension system with air shut off valve An air suspension control system, primarily for use with a vehicle, which increases ride stability and minimizes air losses to the air suspension control system during normal operation of the vehicle by utilization of an air restriction valve to restrict the air int... | 08/30/2005 |
| 6929271 | Hydraulically compensated stabilizer system The present technique provides a stabilizer system comprising a plurality of piston cylinder assemblies, which have multiple interconnected chambers to provide cross compensation between suspension members coupled to those piston cylinder assemblies. The piston cyli... | 08/16/2005 |
| 6918472 | Arrangement for a piston and cylinder device The hydraulic cylinder or shock absorber arrangement has a cylinder unit limiting an inner space in which a medium in the form of a gas or a liquid is intended to be placed. A forwardly and backwardly movable piston unit is placed such that it can slide within the s... | 07/19/2005 |
| 6905126 | Air-bag suspension system An air-bag suspension system for a motorcycle having a motorcycle main frame, fender struts extending outwardly from the main frame, and a swing arm pivotally mounted to the main frame about a pivot axis. The air-bag suspension system includes shock absorber assembl... | 06/14/2005 |
| 6893033 | Integrated air spring and strut A strut for a vehicle suspension includes a hydraulic cylinder housing defining a hydraulic fluid chamber. The hydraulic cylinder includes an air passage adjacent to the chamber and separated therefrom by a first common wall. An air spring is supported on an upper p... | 05/17/2005 |
| 6873897 | Method and device for stabilizing a vehicle A method of stabilizing a vehicle involving the following steps is described: recording characteristic actual values that describe the driving condition of a vehicle; determining setpoint values that are at least partially assigned to the actual values; comparing ac... | 03/29/2005 |
