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| Number | Title | Issue Date |
| 7354051 | Independent suspension system for a wheeled vehicle An independent suspension system for a wheeled vehicle includes a modified shock absorber, a leaf spring, and a wheel carrier. The shock absorber includes a cylinder, and a rod passing through the cylinder. The shock absorber is vertically mounted in a condition whe... | 04/08/2008 |
| 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 |
| 7281716 | Varying a suspension linkage ratio in a vehicle suspension A method and apparatus for actively tuning a vehicle suspension, operatively connect a wheel of the vehicle to a chassis of the vehicle with a suspension apparatus including a control arm of fixed length, having an inboard end thereof adapted for articulating attach... | 10/16/2007 |
| 7244085 | Fastener assembly A fastener assembly includes a grommet having an enlarged bulbous body and a cylindrical extension projecting therefrom, the projection and body defining axially aligned openings therethrough. The cylindrical projection is configured to retain a washer on the outsid... | 07/17/2007 |
| 7144041 | Aluminum hanger and hanger assembly A hanger assembly comprises a pair of hangers; a pair of trailer attachment plates, each attachment plate attached to one of the pair of hangers; and a transverse support member having a first end attached to one of the pair of hangers and a second end attached to t... | 12/05/2006 |
| 7118099 | Selfpumping hydropneumatic spring strut with internal level control in particular for a motor vehicle, includes a high pressure chamber containing a gas cushion acting as a spring, and a working cylinder which is filled with damping medium under pressure of the gas cushion. A working piston carried by a hollow piston rod divides the... | 10/10/2006 |
| 7097187 | Suspension system for a motor vehicle An independent suspension system is provided for coupling a set of wheels to a vehicle body structure. The system includes independently pivotable swing arms, a shock absorber assembly, a joining arm and tie rods. The swing arms are attached to the vehicle body stru... | 08/29/2006 |
| 7066479 | Axle housing suspension seat assembly A vehicle axle assembly is provided including an axle housing having legs extending along an axis. Each housing leg has a wall defining an interior cavity with the wall having a first locating feature formed therein. The first locating feature may be an indentation ... | 06/27/2006 |
| 6454284 | Torsion bar suspension with power height adjustment A torsion bar suspension for an automotive vehicle includes powered means for remotely adjusting the trim height of the vehicle by varying the torque applied to the torsion bars. Height adjustment may be up or down or both from a normal running height. Th... | 09/24/2002 |
| 6290245 | Apparatus for controlling pivoting of axles in industrial vehicles An apparatus for controlling pivoting of a forklift rear axle. A hydraulic damper is arranged between a rear axle and a forklift body. The damper includes two oil chambers. The oil chambers are connected to a first passage and a second passage. A two-way ... | 09/18/2001 |
| 6164673 | Suspension control for all terrain vehicle An all terrain vehicle has an adjustable suspension system. The adjustable suspension system features a first spring and a second spring. An intermediate member is positioned between the two springs and may travel in an axial direction along with at least... | 12/26/2000 |
| 5971116 | Electronic suspension system for a wheeled vehicle An active, hydraulic suspension system for a wheeled vehicle is disclosed. The system utilizes an on-board damper controller, a damper having a pair of telescoping tubes and a motor-adjusted hydraulic channel, a position and direction sensor to achieve co... | 10/26/1999 |
| 5803200 | Adjustable pivot axis for "The missing link" swivel for four-link rigid axle suspensions A suspension for a ground vehicle which connects a rigid axle to the vehicle chassis and stabilizes the rigid axle in fore, aft, and rotational directions. The suspension comprises four links and a swivel. The four links extend within a predetermined numb... | 09/08/1998 |
| 5704631 | End-link for automotive suspension system An improved end-link for a suspension system for a motor vehicle, such as an automobile or a light truck, is used to accommodate adjustment between first and second elements, such as a stabilizer bar and a control element, in the suspension system. The en... | 01/06/1998 |
| 5685527 | Torsion spring adjustment apparatus A suspension adjuster apparatus (46) suitable for use in a motor vehicle having a tension strut 42 interposed and connecting a chassis 10 to a wheel support member 26 is described. The apparatus (46) ensures proper orientation of the suspension member (42... | 11/11/1997 |
| 5664649 | Adjustable shock absorber An adjustable shock absorber having a movable sealing piston located within the shock absorber for sealing fluid and a suspension adjuster connected to the shock absorber for moving fluid between the adjuster and the shock absorber so as to change the ove... | 09/09/1997 |
| 5586032 | System for controlling a vehicle undercarriage based on road safety, travel comfort and standard modes of operation A system for the generation of signals for control or regulation of a passenger car and/or truck undercarriage controllable or regulable in its sequences of movement, where a three-step operation is provided. In a safety mode, particular allowance is made... | 12/17/1996 |
| 5556083 | Torsion bar with variable spring constant A plurality of hollow torsion-bar members are arranged coaxially, and ERF (Electro Rheological Fluid), which increases its viscosity and holds the hollow torsion-bar members together as a unit when a certain voltage is applied, is loaded into the clearanc... | 09/17/1996 |
| 5533597 | Suspension control device The present invention provides a suspension control device with which the damping coefficient of the suspension can be easily adjusted on the basis of only the vertical vibration of a body of a vehicle, without measurement of the relative velocity or the ... | 07/09/1996 |
| 5515273 | System and method for controlling damping force characteristic of shock absorber of vehicle A system and method for controlling a damping characteristic of at least one shock absorber for an automotive vehicle in which, when direction determining signs of both vertical sprung mass velocity (V) and relative velocity (Sv) between a sprung mass and... | 05/07/1996 |
| 5390121 | Banded on-off control method for semi-active dampers A control method for semi-active damper (32) which oscillates in real time (at the frequency of the moving member (22) motion or higher) between a high-damping On state and a low-damping Off state wherein the On and Off damping states are selected by the ... | 02/14/1995 |
| 5374077 | Pneumatically damped vehicle suspension system A pneumatically damped vehicle suspension system. The suspension system provides damping which is load-dependent, i.e., the amount of damping varies in approximate proportion to the load supported by the suspension system, thereby maintaining a nearly con... | 12/20/1994 |
| 5351986 | Vehicle air suspension system An air suspension system for a vehicle such as a pick-up truck, wherein an air spring is mounted directly on the leaf spring of the vehicle and the air spring and leaf spring support the weight of the vehicle frame and load, effectively in series. The com... | 10/04/1994 |
| 5344124 | Suspension system The present invention pertains to a suspension system, in particular, for wheel support of motor vehicles with at least one shock absorber leg consisting of a cylinder and a piston moving in this cylinder for contraction and extension, and actuated by a h... | 09/06/1994 |
| 5337137 | Height sensor and air spring device incorporating the same A height sensor for determining the height from a surface to be measured on the basis of an optical path length from a light-emitting element to the surface to be measured includes: a first light-emitting element and a second light-emitting element dispos... | 08/09/1994 |
| 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 |
| 5195771 | Device for obtaining an axle-load signal from a drive axle of a lifting axle structure The axial load of the mechanically spring-supported drive axle of a lifting axle structure aggregate is defined by a compression of a respective suspension spring and the pressure of the lifting bellows. A two-dimensional contour is disposed at a signal b... | 03/23/1993 |
| 5193844 | Suspension system for a vehicle In a suspension system of a vehicle which the damping force characteristic is changed into three or more characteristics, the damping force characteristic is changed step by step when the damping force characteristic selected by a given control rule is di... | 03/16/1993 |
| 5168448 | Shock absorber controller A shock absorber controller controls a shock absorber so that a damping force thereof is increased when a vertical movement of a vehicle body is returned approximately to a mean position of the vehicle body after it is determined that it is necessary to a... | 12/01/1992 |
| 5125681 | Method and apparatus for determining the displacement of a piston within a shock absorber An apparatus for determining the displacement of a piston within a shock absorber. The shock absorber includes a pressure cylinder forming a working chamber having first and second portions operable to store damping fluid. A piston is provided for control... | 06/30/1992 |
| 5072965 | Suspension control device A suspension control device including a control device for variably controlling a damping force of a suspension to an optimum value by determining a magnitude of acceleration is vertical opposite directions of a vehicle body which magnitude is equal to or... | 12/17/1991 |
| 5046755 | Hydropneumatic suspension system A hydropneumatic suspension system having at least one shock and vibration damper including a cylinder-piston unit (2) provided with a gas storer (34) co-acting with a damping valve (60) provided with choke valves (88, 90, 92, 94). The choke valves (88, 9... | 09/10/1991 |
| 4982972 | Hydraulic pump and actuator for parallel auxiliary leaf spring Selectively engagable auxiliary leaf springs (38 or 138) for vertically supporting a vehicle chassis (32) on an axle assembly (22 or 102) in parallel with main suspension springs (34 or 114). In three of the disclosed embodiments, both ends (38b,38a) of t... | 01/08/1991 |
| 4861067 | Active vehicle suspension with composite control arm A vehicle suspension system which includes a passive spring system including composite control arms for normal support of the vehicle for normal load, road and handling conditions and an active system responseive to deviations from normal conditions for s... | 08/29/1989 |
| 4753328 | Vehicle suspension systems and damping arrangements therefor A suspension system for a vehicle road wheel comprises a wheel suspension device (1) having a double-acting hydraulic actuator and a gas spring in parallel, the gas spring being controllable to provide a selectively variable offset, a sensor (6,90) arrang... | 06/28/1988 |
| 4738467 | Suspension system A suspension system for a vehicle which maintains the chassis at a constant height above the axle under varying conditions of load. Torsion spring means are employed in conjunction with a support beam that is secured to the chassis. One primary torsion sp... | 04/19/1988 |
| 4700968 | Liftable axle with load control A load control (24) for a vehicle (10) having a frame (14), a load-bearing body (12) mounted on the frame (14) and rear wheel-bearing axles. The rear wheel-bearing axles support the frame (14) through suspension systems. The load control (24) selectively ... | 10/20/1987 |
| 4669750 | Vehicle suspension apparatus A vehicle suspension apparatus has air spring chamber provided at a suspension unit for supporting a rear wheel, air supply means for supplying air to the air spring chamber of the suspension unit for supporting the rear wheel through supply opening and c... | 06/02/1987 |
| 4666180 | Control system for hydraulic dampers A control system for controlling the damping force of a plurality of hydraulic dampers, each of which includes a damping force producing mechanism; a damping force adjustment member for adjusting the effective passage area of an oil passage in the damping... | 05/19/1987 |
| 4566718 | Suspension and steering control of motor vehicles A motor vehicle including a body, steerable front wheels and rear wheels for supporting the body, front suspension mechanisms between the body and the front wheels and rear suspension mechanisms between the body and the rear wheels, a power steering mecha... | 01/28/1986 |
