Abstract: A mechanism to reduce load of a hydraulic cylinder having a body, a stem movable within the body, and a piston rod connected to the stem. The mechanism includes a mechanism body attached to the body and defining a recess, and a retainer attached to the mechanism adjacent the opening of the recess so that the retainer substantially fills the opening of the recess, and having an aperture that receives an end of the piston rod. The mechanism further includes a cap attached to the piston rod of the hydraulic cylinder within the recess, the cap having a diameter greater than the diameter of the aperture in the retainer, and a spring connected to the cap at a first end and to the retainer at a second end so that as the piston rod moves relative to the failsafe mechanism body, to reduce load transfer between the piston rod and the cylinder body.

Abstract: A shock absorber includes a gas spring cylinder containing a piston moveable between an extended position and a compressed position within the gas spring cylinder. A mechanical actuator is arranged whereby a bleed port is automatically closed when the gas spring is compressed to a predetermined position corresponding to a desired sag setting. In one embodiment, the position corresponds to a predetermined sag setting whereby the gas spring is partially compressed. In another embodiment, a proper sag setting is determined through the use of a processor and sensor that in one instance measure a position of shock absorber components to dictate a proper sag setting and in another instance calculate a pressure corresponding to a preferred sag setting.

Abstract: Described herein is a motion dampening system for dampening the motion of a moving object. The system includes a tension member with a first portion and a second portion, where the first portion is positionable to contact the moving object. The system also includes a tubular element that is configured to receive the second portion of the tension member. The tubular element contains a compressible substance. The system further includes a piston that is movable within the tubular element. The piston is coupled to the second portion of the tension member and sealingly divides the tubular element into first and second sections. Contact between the moving object and the first portion of the tension member moves the piston within the cylinder to compress the compressible substance in the first section and to create a vacuum in the second section.

Abstract: An air dampening assembly for an electronic device comprises a base member. A first piston housing is disposed on the base member. A second piston housing is disposed on the based member opposite the first piston housing. A sliding member is disposed between the first and second piston housing. A first piston is disposed on a first elongated member of the sliding member. The first piston housing is configured to receive the first piston. A second piston is disposed on a second elongated member of the sliding member. The second piston housing is configured to receive the second piston.

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: A combined service brake and the stored-energy brake cylinder is provided, in which a ventilation valve which forms or shuts off a flow connection between the spring chamber and the service brake chamber of the brake cylinder ensures that disruptive noise is avoided while also preventing loss of air volume for building up the service brake force.

Abstract: A piston/cylinder unit is disclosed. The piston/cylinder unit includes a pressure tube having one end; a piston rod axially movable in the pressure tube, the piston rod extending through the one end of the pressure tube so that a portion of the piston rod is disposed outside the pressure tube; a casing tube attached to the portion of the piston rod, the casing tube at least partially enveloping the pressure tube; and a bush attached to the pressure tube, wherein the bush is disposed between the casing tube and the pressure tube so that the casing tube is axially movable relative to the pressure tube via the bush.

Abstract: Self-pumping hydropneumatic suspension strut with internal height control, in particular for motor vehicles with a work cylinder which is filled with oil and is under pressure by at least one gas cushion which is arranged in a high-pressure chamber and which acts as a spring, the work cylinder being divided into two work spaces by a work piston supported by a hollow piston rod, with a piston pump which is driven by the spring movements and conveys oil out of a low-pressure chamber into the work space connected to the high-pressure chamber and connects the work space connected to the high-pressure chamber to the low-pressure chamber by a regulating opening which is closable depending on the position of the work piston in the work cylinder, wherein a flow connection running through an intermediate wall and opening out below the surface of the oil is provided between the pump space and the low-pressure chamber, wherein the flow connection is arranged in the intermediate wall and has at least one bore hole in the

Abstract: The invention relates to a disk brake for industrial applications, such as the braking of spindles or shafts from which reels of paper or other material are unwound.

Abstract: In an air-type shock absorber, a piston is sealing situated in a cylinder chamber. A vacuum state occurs in a piston bearing side of the cylinder chamber when a piston is pushed. Also, an air reservoir is provided at a side opposite to the piston bearing to have a sealed structure, so that a force of absorbing a shock can be increased to have the same effect as in an oil-type shock absorber. The shock absorber can be used not only at a place requiring cleanness but also in adverse environment in which the shock absorber is exposed to water or coolant, and durability of the shock absorber is also improved.

Abstract: An energy dissipation system for limiting forces applied to object; includes a piston rod that extends out of a pneumatic cylinder which contacts the object, the piston rod is forced from its initial position against a return spring and air is forced into an air line. The force transmitted to the object is consumed by an energy transformation device that responds to the air in the air line. [One such energy transformation device as an air accumulator, which is coupled to the air line trough a check valve. An orifice or release valve, releases air up a predetermined flow rate so that the linear motion of the protected object is transformed into work, which is dissipated.] [Another] The energy transformation device consists of an air-driven motor coupled to a heavy flywheel [through] that is driven by the motor.

Abstract: A wheelchair includes an independent suspension system having a spring and a shock absorber located between the chair and the wheel. The load exerted by the spring and the damping provided by the shock absorber are both variable in order to tune the independent suspension to various conditions.

Abstract: A delayed closing metering type valve is provided which has a bleed control and entry device utilizing a single air passage and a minimum number of parts. In one embodiment, the air passage is generally T-shaped and a metering pin with a conical portion fits into a straight wall portion of an air passage. In another embodiment, an elongated screw member is positioned against a flexible ring member having a passage therein for compressibly increasing or decreasing the air passage in the flexible ring member. The metering valve is fabricated in a manner so as to be easily attached in a faucet housing or removed therefrom as a cartridge unit.

Abstract: A fluid shock absorber of either the pneumatic or liquid type having a frustoconical threaded bleed plug for varying the shock absorbing capacity of the shock absorber. A shock absorber construction utilizing air or liquid having a piston which is expandable whereby expansion to the associated cylinder wall exerts a frictional resistance proportional to the variation in back pressure resulting from the variable restricted flow past the frustoconical bleed plug. A liquid-type shock absorber having a self-contained chamber and a frustoconical bleed plug arrangement wherein liquid from the cylinder is forced into the chamber through the frustoconical bleed plug arrangement. In certain embodiments the bleed arrangement is located in the cylinder wall, and in another embodiment it is located in the piston head.

Abstract: A shock absorber comprises a cylinder with a cylindrical bore, an actuator piston with a rod slidably received in the bore, and an adjustment piston slidably received in the bore and resiliently kept in a predetermined position. The adjustment piston cooperates with the actuator piston to define an adjustment chamber therebetween. The adjustment piston is movable in response to pressure developing within the adjustment chamber to vary a rate of air flow between the adjustment chamber and the ambient atmosphere so as to decelerate the actuator piston during its extending movement relative to the cylinder, thus providing a slow and gradual extending movement of the actuator piston.