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| Number | Title | Issue Date |
| 7364143 | Adjustable suspension fork A suspension front fork includes a lower tube with a closed bottom and an upper tube is movably inserted in the lower tube. Hydraulic oil is filled in the lower tube and has an oil level in the upper tube. A damper assembly is fixedly received in the upper tube and ... | 04/29/2008 |
| 7331434 | Impact absorber An impact absorber is provided for absorbing impact forces especially in case of a collision of a motor vehicle. The impact absorber includes an inner tube (1), which can be pushed into an outer tube (2) in a telescopic manner and which is closed with ... | 02/19/2008 |
| 7320387 | Load adaptive damper with transient air signal restrictor A shock absorber for a vehicle suspension includes a pneumatic actuator that is fluidly connected to a compressed air source in the vehicle suspension, such as a suspension air bag. The pneumatic actuator cooperates with an adjustment mechanism housed within the sho... | 01/22/2008 |
| 7299907 | Hydraulic shock absorber and method A hydraulic shock absorber has an outer body with a central bore. A first piston is telescopingly received in the central bore adjacent a closed end thereof, and has a generally annular shape with an inner surface defining a central piston bore, and an outer surface... | 11/27/2007 |
| 7296812 | Front fork of a motor cycle In a front fork of a motorcycle or other motor vehicle, an oil chamber is provided in an outer side of a hollow pipe is vertically divided into upper and lower sides by a piston arranged in a leading end portion of the vehicle body side tube. An oil reservoir chambe... | 11/20/2007 |
| 7270221 | Bicycle damping enhancement system A bicycle shock absorber and methods for differentiating between rider-induced forces and terrain-induced forces includes a first fluid chamber having fluid contained therein, a piston for compressing the fluid within the fluid chamber, a second fluid chamber couple... | 09/18/2007 |
| 7213799 | Pneumatic suspension and damping arrangement A pneumatic suspension and damping arrangement (100) is fixedly mounted on the chassis at the upper region and to the wheel mount at the lower region thereof. The arrangement includes two hermetically closed air springs (101, 102) filled with pressuriz... | 05/08/2007 |
| 7204456 | Landing gear having a gas vessel, and methods of maintaining such landing gear A landing gear includes a shock absorber having first and second elements slidable relative to each other, the slidable elements defining an inside volume which is filled in part with hydraulic fluid so as to leave a first chamber filled with gas under pressure and ... | 04/17/2007 |
| 7100908 | Shock absorber/pneumatic spring strut The invention relates to a damper arrangement, in particular an air spring strut, comprising a shock absorber having an essentially cylindrical housing and an air spring with a working space which is under internal pressure, and comprising an additional volume which... | 09/05/2006 |
| 7070030 | Resilient and deformable member for absorbing kinetic energy The present invention generally relates to devices and methods for absorbing kinetic energy. In particular, the present device is well suited for use in an automobile door, where it can be positioned for the purpose of absorbing the energy of a side-impact collision... | 07/04/2006 |
| 7032271 | Noise control device for a steel door A noise control device for a steel door includes a buffer, a shock-absorbing member, a stopping member, or only includes a colliding member. The noise control device is installed at any location of a steel door and a casting where noise may be generated when the ste... | 04/25/2006 |
| 6938887 | Suspension system for bicycles The present invention relates to a spring damper system for bicycles having a first load-applying segment, a second load-applying segment, at least one spring mechanism, a damping means, and a regulating mechanism that automatically effects a damping behavior of the... | 09/06/2005 |
| 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 |
| 6698730 | Dual rate air spring An air spring has a pair of spaced end members with a flexible sleeve ending therebetween forming an intervening air chamber. A partition is mounted in a hollow interior of one of the end members and forms an auxiliary air reservoir in the end member. A c... | 03/02/2004 |
| 6651964 | Adjusting arrangement forming part of a shock absorber An arrangement forms part of a shock absorber (1) and is intended to produce distinct longitudinal displacements of an element (7) in response to longitudinal displacements of a screw (15). The displacement directions of the screw and the element diverge ... | 11/25/2003 |
| 6543754 | Air spring Spring characteristics are switched in response to running conditions or use requirements of a bicycle in order to improve riding comfort and vehicle performance. A rod 2 is connected to a piston 3 which slides in a cylinder 1, a piston-side chamber (A) a... | 04/08/2003 |
| 6386525 | Dual volume air spring for suspensions A dual volume air spring for a truck suspension, which has an air bag chamber providing a variable volume and a fixed volume chamber. The chambers are interconnected by a closable orifice. The air bag is provided with a post-like orifice closer which is p... | 05/14/2002 |
| 6254067 | Fluid regulating device for use with a hydraulic cylinder to obtain a variable shock absorbing effect A fluid regulating device includes a regulator housing that confines a valve receiving chamber and a fluid chamber filled with hydraulic fluid. The regulator housing is formed with a fluid opening that is in fluid communication with the valve receiving ch... | 07/03/2001 |
| 5988606 | Hydraulic strut with over-pressure control A hydraulic strut having a damping rate that is variable includes a bypass valve which is operated to open and close by a gas spring supported within the piston of the strut. A main orifice plate divides an oil-filled cavity within the strut into first an... | 11/23/1999 |
| 5649692 | Vibration damper and pneumatic suspension system A self-actuating vibration damper for use in a pneumatic suspension system of a motor vehicle having an air spring that defines an air chamber is disclosed. Located within the air chamber is an actuator rod mounted between two air valves. Upon application... | 07/22/1997 |
| 5516082 | Gas cylinder A gas cylinder with a valve plug made of two parts (4,5), which are fitted together by pressure. Of the two parts, the lower one (5) has an outer slot (7) with three sharp angles in it, which communicates the inter-cylinder space with the gas intake valve... | 05/14/1996 |
| 5217210 | Motor vehicle spring support system with computer-assisted control A system has pneumatic or hydropneumatic spring elements which are constructed in the form of displacement units and which are configured with a first pneumatic chamber, the volume of which changes according to the respective spring stroke, and a second p... | 06/08/1993 |
| 5154264 | Fluid filled cylinder piston device According to an illustrative example of the invention, a gas spring comprises a cylinder which is closed at both ends thereof. A piston is provided within the cylinder and separates two working chambers within the cylinder. The working chambers are filled... | 10/13/1992 |
| 5102109 | Hydraulic shock absorber A hydraulic shock absorber with a housing defining a high pressure space and containing a piston adapted to be moved by a mass to be damped. When the piston is moved for damping hydraulic fluid is displaced from the high pressure space so that there is a ... | 04/07/1992 |
| 4961564 | Air suspension apparatus An air suspension apparatus is disclosed for use with the fifth wheel connection between a tractor and semitrailer. The apparatus includes upper and lower frame sections that are connected by a hinge mechanism for relative pivotal movement. An inflatable ... | 10/09/1990 |
| 4936424 | Hydraulic shock absorber with pressure sensitive external valving A shock absorber with provisions for independent external adjustment of both rebound and compression pressure sensitive valving. The shock absorber makes use of a rebound tube located internal to the piston rod to transmit fluid from the rebound chamber t... | 06/26/1990 |
| 4934749 | Metering pin for an energy absorber A moldable metering pin for an energy absorber unit includes an integral base having a plurality of openings. The base is press-fitted in an outer cylinder of the unit. The openings in the base prevent the formation of air pockets between the base and an ... | 06/19/1990 |
| 4787486 | Landing gear mechanism including controlled instroke and rebound damping and stroke overload protection Landing gear mechanism includes a variable area orifice to obtain the desired rebound damping of the landing gear mechanism during landing, and one or more check valve assemblies that operate in conjunction with the variable area orifice to provide the de... | 11/29/1988 |
| 4765648 | Suspension system for a motor vehicle The system comprises a spring between the vehicle body and each wheel, a shock absorber associated with each spring and which is switchable electromagnetically between soft and hard settings, one or more accelerometers measuring vertical acceleration of t... | 08/23/1988 |
| 4746106 | Car suspension system A suspension system according to the present invention comprises a cylinder piston mechanism and a sub-tank. A main gas chamber is defined inside the cylinder piston mechanism, while a sub-gas chamber is defined inside the sub-tank. An oil chamber, filled... | 05/24/1988 |
| 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 |
| 4632371 | Gas spring of variable spring force A gas spring particularly for jumping stilts comprises a working cylinder and a plunger. In the working cylinder there is a working chamber containing a mass of gas. A gas exchange chamber is fixed with respect to the working cylinder. An exchange passage... | 12/30/1986 |
| 4597548 | Shock absorbing struts for aircraft landing gear Shock absorbing struts for use on aircraft landing gear which include a pair of fluid containing chambers defined by a pair of telescoping cylinders. Fluid flows from one of the chambers to another through a metering orifice proportional to the differenti... | 07/01/1986 |
| 4593890 | Double acting oleo pneumatic shock absorber A shock absorber comprising an elongated tubular element, closed at one end, into which element at the other end a piston can move as counter element, is disclosed. The space delimited by the counter element inside the tubular element is divided into a hi... | 06/10/1986 |
| 4592540 | Damping capacity adjusting mechanism for an air suspension An air suspension comprises a shock absorber having a piston rod in which is disposed a control rod for adjusting a damping force, an air spring having a main air chamber and an auxiliary air chamber, a valve body for affording and shutting off communicat... | 06/03/1986 |
| 4591186 | Hydraulic shock absorbing device of adjustable damping force type A hydraulic shock absorbing device of adjustable damping force type for use in a vehicle such as an automobile includes hydraulic dampers with the damping force thereof being adjustable between at least two, low and high damping force conditions, and a se... | 05/27/1986 |
| 4552324 | Landing gear mechanism for use on rough runways Landing gear mechanism includes a built-in hydraulic actuator which may be actuated to provide a heavy load range, soft spring rate during take-off with a heavy take-off weight and a lower load range, softer spring rate after take-off and prior to landing... | 11/12/1985 |
| 4452437 | Hydraulic-operating shock and vibration absorber and damper The invention relates to a hydraulically-operating shock and vibration absorber or damper, having a cylinder closed at one end, a piston slidable within the cylinder, the piston being connected with a hollow piston rod extending out of the open end of the... | 06/05/1984 |
| 4405119 | Oleopneumatic suspension with variable throttle orifices, especially for aircraft landing gear An oleopneumatic suspension with variable throttle orifices, particularly for aircraft landing gear comprising a rod (1) enclosing a pneumatic spring (2) and being fixed with respect to a piston (4) sliding in a cylinder (3), two valves (6) and (7) with p... | 09/20/1983 |
| 4390187 | Vehicle leveling system A vehicle leveling system is disclosed having an air compressor adapted to issue pressurized air, a tank communicated with the compressor through an electromagnetically operated valve, and a suspension disposed between a chassis and a vehicle axle and hav... | 06/28/1983 |
