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| Number | Title | Issue Date |
| 8113321 | Helicopter reduced vibration isolator axial support strut Helicopter reduced vibration axial support struts and aircraft suspension system are disclosed with at least one vibration controlling fluid containing strut. The powered struts include an outer rigid housing containing an inner rigid member and first and second var... | 02/14/2012 |
| 8109371 | Damper A damper is comprised of an actuator (A) connected to a sprung member (B) side of a vehicle, the actuator (A) including a motion converting mechanism (T) for transforming a linear motion into a rotational motion and a motor (M) to which the rotational motion resulti... | 02/07/2012 |
| 7416062 | Torsional magnetorheological device A magnetorheological device comprising a housing having a divider within the housing is disclosed and claimed. A rotary impeller having two paddles is rotatably mounted within the housing. The rotary impeller sealingly engages the divider and the paddles in combinat... | 08/26/2008 |
| 7325661 | Hydraulic front fork with lockout function A hydraulic front fork includes a fixed locking mechanism mounted in the upper fork tube, and a first adjustment mechanism mounted in the top end of the upper fork tube adjustable to control the flowing path of the hydraulic fluid through the locking mechanism such ... | 02/05/2008 |
| 7299908 | Shock absorber A device for absorbing shocks, in particular for two-wheeled vehicles, having at least a chamber filled with a fluid medium; at least a piston means (20) movable in the longitudinal direction of the chamber ... | 11/27/2007 |
| 7278522 | Controllable motion damper A controllable motion damper with a damping piston separating two damping chambers from each other in a damping cylinder. A damping valve is disposed in a connecting channel of the two damping chambers with the transmissivity of the damping valve for a damping fluid... | 10/09/2007 |
| 7255209 | Integrated suspension system for vehicle An integrated suspension system includes a cylinder that hermetically contains gas therein; a piston that has a motor at an upper portion thereof; a disk unit including a second disk that has a plurality of passage holes formed there through and a bottom surface cou... | 08/14/2007 |
| 6951267 | Damping force-variable shock absorber A damping force-variable shock absorber comprises a cylinder and a piston rod inside the cylinder. The piston rod is linearly moveable relative to the cylinder. An orifice valve plate having a plurality of valve holes is configured and mounted so as to form a circle... | 10/04/2005 |
| 6915885 | Oscillation damper with adjustable damping force Oscillation damper with variable damping force, comprising a valve device, in which an actuator for adjusting the valve device performs a rotary motion against the spring force of a torsion spring, the position of the valve device being determined from the manipulat... | 07/12/2005 |
| 6793047 | Hydraulic dashpot A hydraulic dashpot comprises, first, a cylinder and a piston. The cylinder (1) is charged with shock-absorbing fluid. The piston (3) is provided with ports and valves, is mounted on one end of a piston rod (2) and divides the cylinder into two ... | 09/21/2004 |
| 6474629 | Suspension system for motor vehicles A suspension system for motor vehicles with level regulation for adjusting a predetermined height of the vehicle body includes at least one piston-cylinder unit with a work cylinder, a piston rod and a damping piston having damping valves. A pump is conne... | 11/05/2002 |
| 6454206 | Vibration damping apparatus A damping apparatus for damping vibrations in a vibrating system including a piston which is reciprocally movable in a fluid filled chamber, piston movement in either direction of movement being resisted by fluid pressure in the chamber behind the piston,... | 09/24/2002 |
| 6422360 | Dual mode suspension damper controlled by magnetostrictive element Parallel paths for damping fluid are provided through the piston of a suspension damper, each of which are provided with separate damping valving sets to control damping. Communication through one of the paths is controlled by a movable control valve memb... | 07/23/2002 |
| 6361033 | Roll control actuator A roll control actuator (34) for installation between first and second axially aligned parts (14,16) of a torsion bar (12) has a cylindrical housing (36) connectable by an end wall (38) to the second part of the torsion bar. A rod (40) is positioned insid... | 03/26/2002 |
| 6142269 | Rotary damper A rotary damper with a housing, with a rotor rotatably mounted in a closed chamber of the housing and with a viscous medium disposed within the chamber, wherein the rotor is so formed and so cooperates with the wall of the chamber that with a relative rot... | 11/07/2000 |
| 5480011 | Hydraulic damper A hydraulic damper has a first oil chamber, a second oil chamber, a communication mechanism defining a communication oil passage, the first and second oil chambers communicating with each other through the communication oil passage, and a damping force ad... | 01/02/1996 |
| 5462143 | Controllable shock absorber for motor vehicles A shock absorber for an automotive vehicle includes a damping cylinder having a cylinder chamber containing damping fluid; a damping piston axially slidably received in the damping cylinder and dividing the cylinder chamber into first and second work cham... | 10/31/1995 |
| 5404973 | Damping force control type hydraulic shock absorber In a damping force control type hydraulic shock absorber according to the invention, an extension-side bypass passage extends through an extension-side chamber (17b) in a shutter (17). A check valve (28) allows the flow of hydraulic fluid only during the ... | 04/11/1995 |
| 5398788 | Use of a displacement machine as a pressure control valve A valve for controlling a liquid in an hydraulic vehicle shock absorber includes a displacement machine mounted within a passageway in a piston moveable in a cylinder of the shock absorber. The displacement machine includes at least one operative body rot... | 03/21/1995 |
| 5368142 | Damping force control type of hydraulic shock absorber A damping force control type of hydraulic shock absorber includes a cylinder in which a piston is fitted to define two chambers. A main hydraulic fluid passage extends between the chambers, and a damping force generating mechanism is provided in the passa... | 11/29/1994 |
| 5310169 | Vibration isolating apparatus A vibration isolating apparatus. A first diaphragm and a second diaphragm form portions of partitioning walls of a first sub-liquid chamber and a second sub-liquid chamber, respectively, and are provided so as to permit expansion of the first sub-liquid c... | 05/10/1994 |
| 5248015 | Automobile suspension Disposed between a sprung element and an unsprung element is a shock absorber of multi-degree variable-damping-coefficient type. A damping coefficient of the shock absorber is changed so that an actual damping force generated by the shock absorber becomes... | 09/28/1993 |
| 5195619 | Internal accumulator for a hydraulic damper A hydraulic damper includes an internal accumulator for storing and dissipating energy resulting from a fluid pressure spike inside the damper. A housing is mounted on a piston rod above a reciprocable piston. A compressible medium is stored in the housin... | 03/23/1993 |
| 5163703 | Motor vehicle suspension with damper having a quickly stopped rotatable member A motor vehicle suspension system has a damper with a member rotatable through positions producing separate discrete damping characteristics. Feedback apparatus comprises a contact pad for each position, a brush rotating with the rotatable member, and an ... | 11/17/1992 |
| 5150775 | Steer-sensitive variable damper and method utilizing a ring valve A hydraulic damper for use with a vehicular suspension system includes a reciprocating piston rod and piston in an inner cylinder. A piston valving is carried by the piston and controls the flow of fluid between upper and lower chambers of the inner cylin... | 09/29/1992 |
| 5139119 | Apparatus for damping resilient vehicle wheel suspension systems In an apparatus for damping resilient wheel suspension systems in vehicles and the like having a piston/cylinder assembly, instantaneous, dynamic driving conditions are detected with sensors and serve to control the fluid flow through damping valves. The ... | 08/18/1992 |
| 5080205 | Steer-sensitive variable damping strut A hydraulic strut for use with a vehicle suspension system includes a reciprocating piston rod and piston in an inner cylinder. A piston valving assembly is carried by the piston and controls the flow of fluid between upper and lower chambers of the inner... | 01/14/1992 |
| 5057729 | Resin-sealed rotary actuator for variable shock absorber An electromagnetic actuator varies the cross-sectional area of a passage of damping oil in a variable damping force shock absorber. The wires leading from coils of the actuator are led through a groove formed between the edge of an opening formed in a hou... | 10/15/1991 |
| 4953671 | Damping force adjustable hydraulic shock absorber A hydraulic shock absorber is used, for example, in a vehicle, wherein the level of damping force is adjustable in accordance with the road surface conditions or the like during operation of the vehicle. The hydraulic shock absorber includes a piston atta... | 09/04/1990 |
| 4867475 | Method and apparatus for controlling shock absorbers The method and apparatus for controlling shock absorbers is disclosed. The shock absorber comprises a pressure balanced shutter sleeve disposed within the piston rod of the shock absorber. The shutter sleeve has a plurality of flow passages in fluid commu... | 09/19/1989 |
| 4673171 | Air suspension An air suspension comprises a shock absorber having a piston rod in which a control rod for adjusting damping force is disposed, an air spring having a main air chamber and an auxiliary air chamber, a valve body for affording and shutting off communicatio... | 06/16/1987 |
| 4671392 | Vibration damper with variable damping force A vibration damper for vehicles is disclosed with a variable damping force. The vibration damper includes two series-connected damping valve systems which effect a damping force variation by means of a blockable bypass passage. An externally influenceable... | 06/09/1987 |
| 4635765 | Adjustable hydraulic damper apparatus The invention provides an improved adjustable hydraulic apparatus of the type having a hollow piston rod operably associated with a damping piston means which divides the interior of a cylinder member into first and second halves filled with damping fluid... | 01/13/1987 |
| 4576258 | Adaptive ride hydraulic damper Adaptive ride air suspension strut with internal actuator within hollow piston rod which is operatively connected to a computer control system through electrical bulkhead and high pressure seal which is connected to by cables leading upwardly therefrom th... | 03/18/1986 |
| 4535877 | Hydraulic damper of adjustable damping force type A hydraulic damper of the adjustable damping force type includes a piston working in a cylinder and partitioning the interior of the piston into two liquid chambers, a first passage provided in the piston for connecting the two liquid chambers, a first da... | 08/20/1985 |
