Abstract: A thrust reverser includes two thrust reverser elements movable between a retracted position in which the thrust reverser is inactive and a deployed position in which the thrust reverser is active, a cylinder for deploying the thrust reverser elements, and a single-acting cylinder for retracting the thrust reverser elements.

Abstract: A vibration damper may include a damper tube and a damper piston disposed in the damper tube so as to be reciprocatingly movable. The damper tube may be connected to a piston rod extending out of the damper tube, and the damper piston may movably separate a first oil-filled damper chamber on a piston rod side from a second oil-filled damper chamber remote from the piston rod. A bottom element at one end of the damper tube seals the end of the damper tube. The bottom element may protrude into the end of the damper tube and thereby reduce oil volume of the second damper chamber.

Abstract: An end member assembly (EMI) includes an end member body (400) and a support column (500). The end member body (400) includes an outer side wall and an inner side wall that together at least partially define an end member reservoir. The inner side wall at least partially defines a passage through the end member body. The support column (500) extends into the passage and is accessible from along opposing ends of the passage. A sealing element can be disposed in fluid communication between the end member body and the support column. An elongated gas damping passage can extend through the end member assembly in fluid communication with the end member reservoir. A gas spring assembly can include a flexible spring member (200) that at least partially defines a spring chamber with an end member (900) and the end member assembly (EMI) on opposing ends thereof. A restraining assembly (1000) can be secured within the spring chamber.

Abstract: The invention relates to a device for receiving a boot on a gliding apparatus, such device comprising a binding base extending along a longitudinal direction from a rear end to a front end, and widthwise from a first side to a second side; a heel loop extending in the direction of the rear end of the receiving device, the heel loop being self-supported by at least one attachment point, the heel loop being connected to the binding base by a connection system comprising at least one point of attachment with the binding base. The connection system between the heel loop and the binding base enables relative spacing or approaching movement between the heel loop and the binding base, and comprises at least one connecting element connecting the rear portion of the heel loop to the binding base and limiting the spacing between the binding base and the rear portion while allowing the approaching movement.

Abstract: A first front fork includes an outer tube, an inner tube, a tubular cylinder provided inside the outer tube and the inner tube, a rod member moving relatively in an axial direction of the cylinder and having a space portion inside, which is formed in the axial direction, a piston fixed to an end portion of a wheel side of the rod member and sectioning a space in the cylinder into part of a rebound air spring chamber and an inner air spring chamber and a rod guide fixed to an end portion of a vehicle-body side of the cylinder and sectioning a space in the inner tube into part of the rebound air spring chamber and an outer air spring chamber.

Abstract: A biasing force adjustment device includes: a cylindrical component having a first thread part; a reciprocate component accommodated in the cylindrical component; a biasing portion that biases the reciprocate component in a first direction; and a biasing force adjustment component that adjusts a biasing force of the biasing portion. The biasing force adjustment component has a second thread part engaged with the first thread part so as to control the position of the biasing force adjustment component relative to the cylindrical component, and a regulation part that regulates movement of the biasing force adjustment component relative to the cylindrical component by being deformed in a radial direction by external force applied in the first direction.

Abstract: A bicycle suspension system of the invention generally includes at least two bicycle suspensions and a hydraulic control assembly. The hydraulic control assembly includes a pair of fluid pumps, and a fluid responder and a fluid path for each of the bicycle suspensions. The fluid pumps are mountable to a bicycle handlebar and form part of the hydraulic control assembly. A fluid responder is mountable each of the bicycle suspensions. The fluid paths link the fluid pump to a respective fluid responder. Each fluid responder is operatively connected to one of the bicycle suspensions to operate the bicycle suspension system between first and second suspension settings in response to fluid displacement between each fluid pump and each of the fluid responders.

Abstract: A gas spring for forming equipment. A casing includes an axially extending side wall, an open end, a transversely extending closed end wall axially spaced from the open end, a pressure chamber established in part by the side and end walls to receive a gas under pressure. A piston rod is received at least in part in the casing for reciprocation between extended and retracted positions. A piston rod housing is received at least in part in the casing between the piston rod and the casing. An overtravel pressure relief feature may be carried in a vent passage through the casing and/or in the piston rod housing.

Abstract: A piston rod housing assembly for a gas spring includes a piston rod housing having an interior end, an exterior end axially spaced from the interior end, and an overtravel pressure relief passage extending through the piston rod housing and intersecting the exterior end.

Abstract: A length-adjustable unit includes a tubular outer component, an inner component displaceably guided in the outer component, issues from the outer component arranged outside of the outer component has a connecting element, and an additional connecting element arranged at the assembly end, opposing the exit end, of the outer component. The additional connecting element, or an intermediate element rigidly connected to the assembly end of the outer component, has at least one annular shoulder extending in the circumferential direction of the outer component over the full 360°, while at least one engaging element is associated with the intermediate element, which is rigidly connected to the assembly end of the outer component, or the additional connecting element, and this engaging element is engaged with the annular shoulder to be slidingly displaceable in the circumferential direction but positively engaged in a longitudinal direction.

Abstract: A hydraulic pressure spring includes a hollow cylindrical cylinder having a threaded portion at one end thereof; a closure means which is threadedly engaged with the threaded portion at the one end of the cylinder and closes the one end of the cylinder; a closure means which is provided at the other end of the cylinder and closes the other end of the cylinder; a compressible liquid which is sealed in an interior of the cylinder and is pressurized to a predetermined pressure; a rod which is passed through the closure means movably in an axial direction A and causes the liquid in the interior of the cylinder to undergo a pressure rise as the rod enters the interior of the cylinder; and a piston disposed in the interior of the cylinder and attached to one end of the rod.

Abstract: A grease shut-off gas cylinder comprises an outer cylinder having a guide hole; a spindle inserted in the guide hole and having an inner pipe and an outer pipe; a piston rod having a piston wherein the bottom of a rod is fixed on a bottom surface of the outer cylinder and the top of the rod is slide-inserted in the inner pipe; a valve body secured to top of the spindle and controlling the spindle to move up or down about the piston on the basis of the operations of a valve pin which controls the moving direction of gas; a bushing member protruding from an outer side of the bottom of the spindle and coming into slide contact with an inner wall of the outer cylinder; and a bushing cap secured to top of the outer cylinder and having a guide hole configured to guide the spindle.

Abstract: A shock absorber for a vehicle, having a bellows piston, bellows, and a fluid as the damping medium. The shock absorber has a first partition wall, which is situated on the bellows piston, and is implemented to separate a volume area of the bellows piston from a volume area of the bellows. The first partition wall has a first opening, which is implemented to limit a fluid flow between the volume area of the bellows piston and the volume area of the bellows. The shock absorber further has a sprung mass, which is situated inside the shock absorber to influence the fluid flow inside the shock absorber.

Abstract: A gas strut assembly includes a housing defining an interior space. A rod is coupled to the housing, and is slideably moveable between an extended position and a retracted position. A flexible member is secured in position relative to the housing. A rigid member is coupled to and moveable with the rod. The flexible member includes at least one displaceable member that moves radially away from the central axis in response to a second radial force component of a closing force when engaged by the rigid member moving from the extended position into the retracted position. The flexible member includes a multi-layered structure that changes shape in response to a change in temperature to affect the magnitude of the second radial force component required to move the displaceable member.

Abstract: The current invention discloses several methodologies that mitigate shock loading and propensity to resonance in agricultural spray boom structures. These include a near planar linkage for decoupling the boom assembly from the vehicle. This serves to permit further aspects of the invention to: Use the combined mass of the booms and center section as the tuned mass of a tuned mass damper: Act as an enabling part of a boom compliant suspension system to mitigate shock loadings otherwise imposed on the boom system, and: Act as an enabling part of an active boom height and roll control systems to permit the accurate navigation of the boom over undulating terrain. Further aspects include the incorporation of tuned mass dampers in the boom structure and components; and the use of the mass and operation of the boom outboard “breakaway” sections as tuned mass dampers.

Abstract: A visco-elastic damping assembly includes a mount housing having first and second ends and a hollow interior. A piston assembly disposed within the mount housing includes axially opposed first and second piston rod ends in which the first piston rod end is defined by a first diameter and the second piston rod end is defined by a second diameter substantially larger than the first diameter. A high pressure hydraulic reservoir is defined within the mount housing wherein an applied load component acting on the second piston rod end causes corresponding movement of the piston assembly against fluid retained in the hydraulic reservoir, enabling a first static spring rate as well as a second higher dynamic spring rate.

Abstract: A piston rod housing assembly for a gas spring includes a piston rod housing having an interior end, an exterior end axially spaced from the interior end, and an overtravel pressure relief passage extending axially through the piston rod housing and intersecting the exterior end. The assembly also includes an overtravel pressure relief member carried in the overtravel pressure relief passage and having an exterior end that projects axially beyond the piston rod housing.

Abstract: An air spring piston for a heavy-duty vehicle includes a top portion and a bottom portion. The top portion includes a bumper and a connecting means for an air spring bellows. The bottom portion is mounted on a structure of the vehicle. The top portion and bottom portion are connected to each other to form a piston chamber and include a bearing means for reacting bumper forces from the bumper to the bottom portion and to the structure of the vehicle on which the bottom portion is mounted. The piston chamber is in fluid communication with a bellows chamber of the air spring via an opening, wherein the geometry of the opening is such that during dynamic spring movements, the pressure in the piston chamber and the pressure in the bellows chamber are not equalized.

Abstract: A fluid strut includes a frangible locking member including a generally cylindrical locking pin mounted to an outer cylindrical housing of the strut and extending radially inwardly toward a gas spring cylinder. The locking pin is movable between operative and inoperative positions. In the operative position, the spring-loaded frangible locking pin extends into engagement with the gas cylinder and can advance radially to a locking position once the outer housing extends beyond the location of the gas cylinder. In an inoperative position, the locking pin is held in a retracted position. The end of the locking pin has a reduced diameter, such that, if a purposeful force is placed upon the strut when in a locked position, the pin can shear, allowing the rod to be retracted within the cylinder and the closure member to be closed without damage.

Abstract: A shock absorber includes a hydraulic compression stop. The hydraulic stop includes a pressure tube surrounding the pressure tube of the shock absorber and a piston in hydraulic communication with the interior of the pressure tube. The piston can be disposed within the pressure tube and can be attached to the pressure tube or to the shock absorber. The hydraulic stop can also include a hydraulic fluid chamber and the piston can be disposed within the hydraulic fluid chamber.

Abstract: An end member for a gas spring assembly is dimensioned to receivingly engage an end of a flexible wall. The end member can be formed from polymeric material and can include a side wall receiving the end of the flexible wall. The end member can also include a base wall extending transverse to the side wall and dimensioned to abuttingly engage a jounce bumper of the gas spring assembly. The end member can include a mounting ridge or a mounting channel for engaging an associated structural component. A gas spring assembly including such an end member is also included.

Abstract: End members are dimensioned for securement to a flexible wall of a gas spring assembly. The end members can include an end wall, and inner and outer crimp walls that extend from the end wall and are disposed in spaced relation to one another such that gap is formed therebetween. A plurality of connector walls extend between and operatively interconnect the inner and outer crimp walls. Gas spring assemblies including such an end member and suspension systems including one or more of such gas spring assemblies are also included.

Abstract: An end member assembly includes an end member body and an end member insert. The end member body can include an outer side wall, an inner side wall disposed radially inward relative to the outer side wall, and a bottom wall that together with the inner side wall at least partially define a cavity. The end member insert can be supported on the end member body and selectively rotatable relative thereto. A gas spring assembly and a suspension system are also included.

Abstract: A roll-off piston for an air spring rolling-lobe flexible member, the interior of the roll-off piston is connected to the interior of the air spring. The roll-off piston includes two parts, namely, a pot-shaped piston lower part and a piston upper part connected in an air-tight manner to the lower part. A support for a stop buffer is integrated in the roll-off piston. The support includes two interacting parts, of which one part is configured as part of the piston upper part and the other part is configured as part of the pot-shaped lower part and extends from the base thereof. Both support parts interact in order to absorb forces acting substantially axially.

Abstract: The invention relates to a hydropneumatic piston/cylinder arrangement, in particular for use as a spring element and/or shock absorber element, comprising a cylinder (1) and a piston (15) which is axially movable in the cylinder chamber (5) of said cylinder, the cylinder chamber being tilled with hydraulic fluid. The piston (15) is connected to a piston rod (13) which extends outwards in a sealed manner from one end of the cylinder (1), and the base of said piston, which is remote from the piston rod (13), can he operatively connected to a pneumatic spring mechanism (7) in order to convey fluid. Said piston/cylinder arrangement is characterised in that a piston accumulator (7), the accumulator piston (19) of which directly adjoins the hydraulic fluid situated in the cylinder chamber (5), is provided as the spring mechanism.

Abstract: The invention relates to a piston for an air spring, wherein the piston has a piston skirt, wherein the outer contour of the piston skirt can be variably changed in order to vary an air spring characteristic of the air spring.

Abstract: A gas strut assembly includes a housing defining an interior space. A rod is coupled to the housing, and is slideably moveable between an extended position and a retracted position. A flexible member is secured in position relative to the housing. A rigid member is coupled to and moveable with the rod. The flexible member includes at least one displaceable member that moves radially away from the central axis in response to a second radial force component of a closing force when engaged by the rigid member moving from the extended position into the retracted position. The flexible member includes a multi-layered structure that changes shape in response to a change in temperature to affect the magnitude of the second radial force component required to move the displaceable member.

Abstract: A gas spring piston (3) includes an external retention feature (254) that is capable of receivably engaging and retention on an associated structural component (1cs). The gas spring piston (204) includes an outer side wall (228), a base wall dimensioned to abuttingly engage the associated structural component (1cs), and at least one external retention feature (254) disposed along the base wall (228). A gas spring assembly (200), a suspension system, a gas spring piston kit, and a method are also included.

Abstract: A gas spring for forming equipment, a piston rod for the gas spring, and a shock collar for the gas spring carried by the piston rod. The shock collar may be resiliently flexible, and plastically deformable so as to at least partially collapse, and the piston rod may include features to disrupt a gas spring seal upon at least partial collapse of the shock collar.

Abstract: A fluid strut includes a frangible locking member including a generally cylindrical locking pin mounted to an outer cylindrical housing of the strut and extending radially inwardly toward a gas spring cylinder. The locking pin is movable between operative and inoperative positions. In the operative position, the spring-loaded frangible locking pin extends into engagement with the gas cylinder and can advance radially to a locking position once the outer housing extends beyond the location of the gas cylinder. In an inoperative position, the locking pin is held in a retracted position. The end of the locking pin has a reduced diameter, such that, if a purposeful force is placed upon the strut when in a locked position, the pin can shear, allowing the rod to be retracted within the cylinder and the closure member to be closed without damage.

Abstract: A cylinder assembly includes a piston rod connected to a piston which is movably received in a cylinder and the interior of the cylinder is defined into a first room and a second room by the piston. A first groove and a second groove are respectively defined in the inside and the outside of the piston, and the two grooves are longitudinally aligned with each other. Two seal rings are respectively engaged with the first and second grooves. The first groove includes a first inner surface and the second groove includes a second inner surface. A distance is defined between two respective extension lines of the first and second grooves. Each of the two respective extension lines is defined by extending a line from the first/second inner surface of the first/second groove. The outer diameter of the piston is reduced for being used with a smaller cylinder.

Abstract: A damper includes a vessel; a partitioning member which partitions the interior of the vessel into two chambers for accommodating a viscous fluid, and which rotates together with the vessel in a direction and is movable in an axial direction; a moving force imparting structure for imparting to the partitioning member a moving force in a direction by the input of rotation in a direction; a resilient structure for resiliently urging the partitioning member in a direction; a through hole for allowing the chambers inside the vessel to communicate with each other; and an allowing/limiting member which allows the viscous fluid to flow reciprocally between the chambers through the through hole, and which limits the flow of the viscous fluid in one chamber into the other chamber in the direction through the through hole.

Abstract: A gas spring suitable for controlling motion of a linear power generator or a linear machine. According to an embodiment, the gas spring comprises a cylinder and a pressure control network. The cylinder comprises two pistons in a coaxial arrangement and three controllable gas volumes or chambers. Each of the pistons includes a piston rod or shaft that is configured to couple to respective drive shaft(s) on the linear power generator. The pressure control network is operatively coupled to each of the three gas volumes and configured with a controller to control the gas pressure in the gas volumes to vary the resistance of the pistons to the movement of the respective drive shaft(s) on the linear power generator. According to another embodiment, the cylinder comprises one piston and two controllable gas volumes or chambers operatively coupled to the pressure control network.

Abstract: A gas spring is provided that can comprise at least one rod, at least one guide bushing, and at least one dynamic seal. The rod can slide inside at least one cylinder containing gas. The dynamic seal can be interposed between the rod and the cylinder. In some embodiments, the guide bushing can be formed from a first mixture comprising a thermoplastic polymer and a solid lubricant filler. Further, in some embodiments, the dynamic seal can be formed from a second mixture comprising a thermoplastic elastomer and a mineral filler or a powder of thermoplastic polymer.

Abstract: A cover opening-and-closing support mechanism is provided that reliably locks a gas spring, and in which a rod section of a gas spring is not damaged by a stopper portion. The cover opening-and-closing support mechanism includes: a gas spring equipped with pivot points at both end portions and including a cylinder section and a rod section; a stopper portion rotatably provided at the pivot point at a first of the end portions, the stopper portion making contact with the cylinder section when the gas spring has been extended so as to lock the gas spring; a gas spring stopper including a limiter portion that makes contact with the cylinder section before the stopper portion makes contact with the rod section; and a release handle portion for releasing the locking, provided at the gas spring stopper on substantially an opposite side to the stopper portion, such that the gas spring stopper swings towards substantially the opposite side to the stopper portion due to a weight of the release handle portion.

Abstract: A cooperative mounting arrangement for an end member or spacer of a gas spring assembly includes a recess formed into one of the end member and the spacer. A projection is provided on or along an associated structural component. The recess receives the projection such that lateral forces acting on the end member of the gas spring assembly can be transferred to the associated structural component.

Abstract: A damper 1 includes a vessel 2; a partitioning member 6 which partitions the interior of the vessel 2 into two accommodation chambers 4 and 5 for accommodating a viscous fluid 3, and which rotates together with the vessel 2 in an R direction and is movable in an axial direction A; a moving force imparting means 7 for imparting to the partitioning member 6 a moving force in an A1 direction by the input of rotation in an R1 direction; a resilient means 8 for resiliently urging the partitioning member 6 in an A2 direction; a through hole 9 for allowing the two accommodation chambers 4 and 5 inside the vessel 2 to communicate with each other; and an allowing/limiting member 10 which allows the viscous fluid 3 accommodated in the two accommodation chambers 4 and 5 in the vessel 2 to flow reciprocally between the two accommodation chambers 4 and 5 through the through hole 9, and which limits the flow of the viscous fluid 3 in the accommodation chamber 4 into the accommodation chamber 5 in the A2 direction through t

Abstract: A gas spring piston includes a piston body with an end wall and a side wall that projects longitudinally from the end wall. The side wall includes an outer surface and a retainment ridge spaced longitudinally from the end wall such that the outer surface is disposed between the retainment ridge and the end wall. The retainment ridge projects radially-outwardly beyond the outer surface such that a shoulder surface is formed adjacent the outer surface. The outer surface includes an engagement feature that is dimensioned to compressively engage an associated flexible wall. The engagement feature is positioned along the outer surface in spaced relation to the end wall and the shoulder surface of the retainment ridge. A gas spring assembly and a method of assembling a gas spring that include such a gas spring piston are also disclosed.

Abstract: An air spring including a piston, and a flexible sleeve connected to the piston. The flexible sleeve forms a compression chamber and includes a lobe that rolls along a surface of the piston during compression of the flexible sleeve. The flexible sleeve is connected to the piston by an inverted crimp connection. A crimp ring used providing the inverted crimp connection includes a rebound travel limiter around which the lobe is formed.

Abstract: An end-stop damper including a damper body in the form of a cylinder, wherein a piston is guided so that it is displaceable in the cylinder receiving chamber. An air pressure is formed in the receiving chamber produces a braking force acting on the piston during its displacement. The receiving chamber includes at least one pressure reducing opening and the piston includes a bellows section which is actively connected to the cylinder according to pressure conditions in the receiving chamber. This invention substantially simplifies the structural design of the end-stop damper because the piston and the bellows section are connected to each other so that they are formed in one piece.

Abstract: A gas spring with a center longitudinal axis including a cylinder includes a piston in the cylinder that divides the cylinder into a first cylinder chamber and a second cylinder chamber. A piston rod is arranged at the piston guided out of the cylinder at a second end opposite the first end. A connection element with a socket housing is arranged at each of the first end and the free end of the piston rod for receiving a ball head. At least one of the two socket housings comprises a ball socket with a longitudinal extension and a transverse dimension, the longitudinal extension is greater than the transverse dimension. A catch element having a spring tongue is arranged at the first end for insertion together with the catch element into a cover tube that locks into a recess associated with it in the cover tube.

Abstract: A dampening device for use in a dampening system that operates to dampen and slow the movement of a closing door thereby reducing noise and the risk of injury, the dampening device including a piston and dampening apparatus that are moveable within a cylinder and an anchoring apparatus, the dampening device attached to various positions along a door frame or door panel.

Abstract: A suspension system between two bodies, the suspension system including: a first pressure chamber provided between the bodies; and at least one other pressure chamber provided between the bodies such that the at least one other pressure chamber opposes the action of the first pressure chamber; and a control system to control the pressure and volume in the first pressure chamber and the at least one other pressure chamber to adjust the stiffness value of the suspension system independently of adjusting a distance between the bodies.

Abstract: A displacement element includes a first piston, a second piston, a cylindrical housing filled with a fluid under pressure, a piston rod, and a spring. Each of the pistons is adapted to the respective internal diameter of its section and divides the respective section into two pressure chambers. The first piston is arranged at one end of the piston rod, and both pistons each include means for damping the movement of the piston rod respectively in one direction. The second piston is arranged on the side of the first piston facing away from the piston rod and is capable of displacement by means of the first piston in a direction facing away from the open end. The spring is arranged on the side of the second piston facing away from the first piston, and supported by the second piston and the housing.

Abstract: The invention provides a telescopic member that includes a cylinder in which a rod carrying a piston is mounted to slide telescopically, the telescopic member including internal abutment mechanisms that are overridable over a predetermined force when the rod comes into abutment inside the cylinder in the shortening direction. The internal abutment mechanisms include an abutment piece extending in an open bore within the rod and projecting therefrom, the abutment piece being held to the rod via a pin.

Abstract: A gas spring capable of having long and short travel modes is described. The gas spring uses liquid in combination with pressurized air to affect the travel length. Unlike conventional gas springs, the gas spring according to the invention may have its travel reduced more than, for example, by 50%.

Abstract: A damping device, which is provided between a handle and pole tube of a sport pole such as a ski pole, combines the action of a helical compression spring (17) with that of a gas compression spring, whereby a rod-shaped body (5) can be displaced inside a tube (3). An elastic insert (13), which is subjected to the action of the helical compression spring (17), is provided at the end of the rod-shaped body (5). The rod-shaped body (5) is pressed into the tube (3), e.g. when the pole is placed against the ground, and the insert (13) deforms and tightly abuts against the tube (3) from the inside whereby forming a gas compression spring. The damping action is progressively increased inside the tube (3) by the friction of the deformable insert (13).

Abstract: A load weighting control apparatus that suppresses deterioration of a controlled object due to impacts or the like during control, and for which energy usage costs required for control are markedly reduced, and that has a simple structure and therefore inexpensive manufacturing costs and running costs. The apparatus includes a main vacuum cylinder provided with a cylinder tube, end walls, an air vent that passes through one end wall, a valve that is provided in the air vent and serves to open/tightly close the atmosphere inside of the cylinder tube to the outside, a piston that slides back and forth within the cylinder tube, and a piston rod that is linked to the piston and passes through the other end wall and an auxiliary vacuum cylinder that includes a slacking portion where a piston rod produces slackness in the main vacuum cylinder.

Abstract: Provided is a viscous fluid-sealed damper which helps to achieve an increase in degree of freedom in terms of the selection of the material of a sealing container, which can be produced with high production efficiency, and which helps to avoid leakage of the viscous fluid. A lid member is fixed to a container main body while compressing and holding a flange portion between a sealing member and the lid member, so an opening end of the container main body can be sealed with the lid member without having to effect fixation through fusion-bonding as in the prior art, and the degree of freedom in terms of material selection can be increased. Further, if the container main body is formed of a butyl rubber, the container main body can be fixed to the lid member without using any adhesive, so it is possible to achieve a reduction in production time and in cost. Further, it is possible to avoid leakage of the viscous fluid due to defective adhesion.

Abstract: A shock absorber system for use with a vehicle having a shield to reduce the effects of a shock event.