Quotables
"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
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.
| Number | Title | Issue Date |
| 7350795 | Suspension A rear axle suspension for a highway truck that includes a pair of trailing arms suspended below a frame by a pair of hanger brackets. The hanger brackets define a pivot axis for the trailing arms. A supplemental axle locating member is attached to the axle and incl... | 04/01/2008 |
| 7241034 | Automatic directional control system for vehicle headlights A structure and method for operating a directional control system for vehicle headlights that is capable of altering the directional aiming angles of the headlights to account for changes in the operating conditions of the vehicle. One or more operating condition se... | 07/10/2007 |
| 7243052 | Method and apparatus for determining hysteresis The invention relates to a method and a system for determining hysteresis of a process device in a process environment. The process comprises collecting (50) second-level sample data ys and us from control and measurement signals u and y of a control circuit.... | 07/10/2007 |
| 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 |
| 7198125 | Cab support system for an agricultural vehicle An agricultural vehicle includes a chassis and a cab supported on the chassis by means of a support system which maintains the cab level. The support system comprises two pairs of hydraulic actuators. Each pair of actuators is operative to tilt the cab relative to t... | 04/03/2007 |
| 7192032 | Electronic control of vehicle air suspension A system is provided for use on large vehicles of the type wherein the vehicle frame (12) is supported on vehicle axle assemblies (14, 20, 22) through air bags (26, 30, 32), and each air bag has a lower end coupled to the lower end of an arm suc... | 03/20/2007 |
| 7168717 | High clearance vehicle suspension with twin spindles for transferring steering torque An independent strut suspension utilizes upright twin spindles and a spindle cap linked to the spindles that translates vertically along the spindles as the suspension moves over uneven terrain. An upright strut shaft is mounted in a strut journal for axial and rota... | 01/30/2007 |
| 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 |
| 7129668 | Actuator control unit An actuator control device includes an electrical control unit for detecting the present positions of output shafts of servo motors, and communicating with control circuits for driving the output shafts of the servo motors to target stop positions on the basis of th... | 10/31/2006 |
| 7066474 | Electronic suspension and level control system for recreational vehicles The suspension and level control system for vehicles includes, so as to independently control inflation and deflation of left and right front and rear air-springs, corresponding left and right front and rear pneumatic circuits in fluid communication with a pressuriz... | 06/27/2006 |
| 7055832 | Vehicle roll control system A roll control system for a motor vehicle comprising a torsion bar (16); a first hydraulic actuator (12) connected to one end (20) of the torsion bar and connectable to an axle (34) of the vehicle; a second hydraulic actuator (14) ... | 06/06/2006 |
| 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 |
| 6959932 | Electronic height control A method for controlling the ride height in a suspension of an over the highway truck or tractor based on rear axle load. A load on the rear axle is measured. An optimum ride height is calculated at core response to correct drive lighted angles based on the rear axl... | 11/01/2005 |
| 6942201 | Volume reducing bead plate for air spring A vehicle air spring assembly having a pair of spaced end members which sealingly engage a flexible bladder to form an internal air chamber having an internal volume. One of the end members is a bead plate which has an annular outer end portion which is crimped to t... | 09/13/2005 |
| 6904794 | Method for determining the wheel loading of a motor vehicle The invention relates to a method for determining the wheel loading of a motor vehicle wheel, with an attached air spring, with the aid of which the vehicle chassis is suspended relative to the motor vehicle wheel, including the following steps: a stationary wheel l... | 06/14/2005 |
| 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 |
| 6470248 | Vehicle suspension control system The present invention is intended for use with a motor vehicle having at least one fluid-pressurized height adjusting member having first and second separable components. Apparatus constructed in accordance with the invention includes an integrated vehicl... | 10/22/2002 |
| 5651555 | Fluid-operated leveling valve systems A supported structure is leveled against positional variations relative to a supporting structure with a fluid suspension system between the supported structure and the supporting structure. The fluid suspension system has a first fluid leveling valve for... | 07/29/1997 |
| 5601306 | Vehicle suspension system A vehicle suspension system comprising a vehicle body supported upon a plurality of wheels arranged in lateral and longitudinal spaced relation. Individual double acting fluid rams connected between each wheel and the vehicle body to provide the support f... | 02/11/1997 |
| 5556115 | Vehicle suspension systems A vehicle suspension system includes a vehicle body, a plurality of wheels arranged in lateral and longitudinal spaced relation to support the vehicle body. Two hydraulic rams are between each wheel and the vehicle body, with one ram of each wheel connect... | 09/17/1996 |
| 5527060 | Load-sensitive vehicular suspension system According to an embodiment of the invention it is proposed, for determining the weight of the useful load on a vehicle, that the height of the vehicle body above the chassis be determined, this height be compared with a threshold value and that a switch i... | 06/18/1996 |
| 5475593 | Distributed active vehicle suspension system A vehicle suspension system has hydraulically extensible and contractable actuators 14 connected between the vehicle body and the wheel assemblies 17. The actuators 14 are controlled by valves 25 to control the vehicle attitude. The valve 25 of each of th... | 12/12/1995 |
| 5452919 | Suspension system for a vehicle A vehicle air suspension can be controlled between a Standard setting of ride height and a lower, Kneel, setting. Movement to or from the Kneel setting is frozen if a door is opened or if the footbrake is applied. Alteration to the Kneel setting is preven... | 09/26/1995 |
| 5450322 | Suspension control system for automotive vehicle A system is for controlling a suspension performance detecting the road surface condition in front of an automotive vehicle. A road surface sensor generates an output corresponding to the size of roughness on a road surface located at a predetermined dist... | 09/12/1995 |
| 5430648 | Vehicular suspension system A vehicular suspension system comprises a hydraulic damper including a valve element having a plurality of positions and a pulse motor drivingly coupled with the valve element. A control unit is operatively coupled with the pulse motor. In order to avoid ... | 07/04/1995 |
| 5393087 | Fluid active suspension apparatus and operation control method therefor A pneumatic active suspension apparatus is provided wherein, when a sprung vertical acceleration (ZG), which causes a wafting phenomenon perceptible by a person in a vehicle, occurs during travel of the vehicle, supply/discharge of air to/from air spring ... | 02/28/1995 |
| 5375819 | Dual in-line height control valve assembly A valve assembly for controlling the delivery and exhaustion of pressurized air to and from an air spring. The valve assembly comprises a body having a valve bore with a coaxially open end, and a port in communication with the valve bore. The port is adap... | 12/27/1994 |
| 5323319 | Damping force controller There is disclosed a damping force controller for controlling a damping force characteristic of a damper disposed between an unsprung mass and a sprung mass of a vehicle. A control unit repeatedly compares an output signal of a load sensor with a predeter... | 06/21/1994 |
| 5322321 | Vehicle active suspension system An active suspension system (10) includes an electrically powered actuator (16) utilized with a height sensor (18) and a gas spring (24) controlled by a gas supply (26) that pressurizes and vents the gas spring to quickly add or remove a predetermined for... | 06/21/1994 |
| 5273297 | Leveling system for vehicles A leveling system for vehicles has one pressure regulating valve for controlling each work cylinder disposed between the vehicle body and a wheel support, the work cylinder having a hydraulically controlled main valve and an electromagnetically controlled... | 12/28/1993 |
| 5265913 | Leveling system for vehicles A leveling system for vehicles has at least one pressure-fluid-actuated work cylinder disposed between the vehicle body and the wheel suspension, a pressure fluid source and a pressure fluid sink for supplying pressure fluid to the actuator, and a proport... | 11/30/1993 |
| 5246247 | Hydropneumatic suspension system A hydropneumatic suspension system for motor vehicles. The system contains at least one piston cylinder unit (202) including a cylinder (212) and a piston (214) cooperating with a spring storage system (204, 206) containing a compressible medium, where a ... | 09/21/1993 |
| 5205581 | System for controlling a chassis In a system for controlling a chassis, in particular for controlling spring cylinders that can simultaneously perform the function of a semiactive shock absorber and are disposed between wheel suspensions and the vehicle body, at least one chamber of the ... | 04/27/1993 |
| 5183285 | Suspension process and apparatus of the type having different stiffnesses with provision to smooth the change from one stiffness to another A suspension for the wheels of a motor vehicle, the suspension having an operating load position in which the suspension is deformed by a force equal to the weight of the vehicle, a suspended wheel position in which the suspension is deformed by a force l... | 02/02/1993 |
| 5161817 | Fluid-operated leveling valve systems A fluid suspension system has a valve including first and second valve parts coupled to a supporting structure and to a supported structure, respectively, and movable relative to each other in response to movements of the supporting structure and the supp... | 11/10/1992 |
| 5160160 | Active suspension system An active suspension system is disclosed in which in order to eliminate the undesired rapid lifting of the vehicle upon starting of the engine, the discharge from a fluid supply pump at such time is controlled to a level lower than that achieved when the ... | 11/03/1992 |
| 5085460 | Working fluid circuit for automotive active suspension system with enhanced take-up characteristics upon initiation of operation An active suspension system is provided a timing control valve in a supply line. The timing control valve is so designed as to provide a predetermined magnitude of delay in building up line pressure upon initiation of suspension control operation. A flow ... | 02/04/1992 |
| 5080391 | Vehicular height regulation system for automotive vehicle with active fluid pressure within predetermined variation range A height regulation system for an automotive vehicle to generally adjust a vehicular height level within a predetermined height range includes a variable pressure chamber, in which the fluid pressure is adjusted to adjust the relative distance between the... | 01/14/1992 |
| 5074569 | Height control in active suspension system An active suspension system derives a target pressure to adjust fluid pressure in a working chamber of an active cylinder on the basis of a difference between an actual height level and a desired or target vehicular height level. Pressure supply for the w... | 12/24/1991 |
