The present disclosure concerns a spring device with a piston and a housing into which the piston can be introduced in a movement direction. A cavity is formed between the piston and the housing, in which cavity a compressible solid body spring is arranged that consists of a solid body that can be compressed by the piston. At least one surface of the piston that faces the solid body spring is conical or concave. The disclosure furthermore concerns a securing device comprising such a spring device and the use thereof, in particular for a container closing plug.

Housing has first and second parallel tubular chambers. The first chamber contains a gas spring whose output shaft connects to a first piston of area A.sub.1. The second chamber contains a second piston of area A.sub.2<A.sub.1. Piston A.sub.2 connects to the device's output shaft. The housing has a valve block at one end with an internal port in fluid communication with the volumes of the two chambers that are between the first and second pistons and the valve block containing an incompressible fluid. A spring-biased poppet valve is contained in the internal port. The poppet includes a flow restricting bore therethrough. A force on the output shaft causes the fluid to force open the poppet and displace the piston, A.sub.1, to store energy in the gas spring. Upon removal of the force on the device's output shaft, the gas spring pushes the fluid to close the poppet. Hence, only a low volume flow through the bore in the poppet is permitted to dampen output shaft movement.

A shock absorbing device that has high strength rigidity and good attenuation characteristics, that can be reduced in weight and size, is free from degassing, and has stable temperature characteristics. The device connects between a first and second member so as to be applicable to shock absorption therebetween, and includes: a first and a second shock absorbing member; and a holding and connecting mechanism which holds the first member via the first and second shock absorbing members and which is connected to the second member. The first shock absorbing member, the first member, and the second shock absorbing member are disposed in that order. The holding and connecting mechanism sandwiches the first shock absorbing member, the first member, and the second shock absorbing member from outside the first and second shock absorbing members, thereby holding the first member while applying stress to the first and second shock absorbing members.

A telescopic column includes at least two telescopic elements movable with respect to one another between two end positions and at least one damper that is configured such that, prior to reaching at least one of the end positions, a force slowing the relative movement of the telescopic elements is exerted on at least one of the telescopic elements.

An aircraft landing gear shock absorbing strut having an outer cylinder and a sliding tube coupled within the cylinder bore to move between compressed and extended conditions. The cylinder and tube define a variable-volume internal chamber. The internal chamber is divided into a first spring chamber and a second spring chamber. The first spring chamber is a pneumatic chamber containing a first gas that is compressed when the strut moves from the extended condition to the compressed condition to provide compression damping. The second spring chamber contains a second gas and a hydraulic liquid, and is configured to compress the second gas when the strut moves from the extended condition to the compressed condition. The second spring chamber contains one or more damping orifices through which the oil passes as the strut extends to provide recoil damping during extension of the strut.

A vibration damper including a frame having at least a first cavity, a frame first end and a frame second end spaced from the frame first end; a shaft slidably coupled to and extending into the frame where the shaft extends through the first cavity; a first vibration isolator disposed within the first cavity where the shaft extends through the first vibration isolator so as to capture the first vibration isolator within the first cavity where the first vibration isolator interfaces with the frame second end; and a second vibration isolator disposed on the shaft, where the shaft extends through the second vibration isolator so as to capture the second vibration isolator on the shaft where the second vibration isolator interfaces with the frame second end opposite the first vibration isolator, where the first vibration isolator and the second vibration isolator act only in compression.

A monitoring system for a dual-stage, pressure-activated, mixed fluid gas shock strut, may comprise a controller, and a tangible, non-transitory memory configured to communicate with the controller, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising receiving, by the controller, a primary chamber temperature sensor reading, receiving, by the controller, a primary chamber pressure sensor reading, receiving, by the controller, a shock strut stroke sensor reading, and calculating, by the controller, an oil volume in a primary chamber of the shock strut. The instructions may cause the controller to perform further operations comprising calculating, by the controller, a number of moles of gas in a primary chamber of the shock strut and calculating, by the controller, a number of moles of gas in a secondary chamber of the shock strut.

A foot of a washing machine comprises a foot base, a flexible accommodating body and an adjustable foot, a hollow chamber is arranged in the foot base, and the hollow chamber comprises at least a gas chamber for filling gas. The flexible accommodating body is arranged in the hollow chamber and is communicated with the gas chamber, an accommodating chamber is arranged in the flexible accommodating body and is provided with a hydraulic medium. The hydraulic medium can flow to the gas chamber under pressure. An end of the adjustable foot is relatively slidably set in the hollow chamber and the flexible accommodating body is in contact or connected with the adjustable foot. The foot of a washing machine can automatically adjust adaptively due to the fluidity of the hydraulic medium under different pressures.

A compression rod may include a plunger and a spring. A proximal end and a distal end of the compression rod may contact engagement features in a core cowl of a gas turbine engine. The compression rod may transmit loads between halves of the core cowl. The spring may cause the plunger to extend and contract in response to vibrations or other relative movement between halves of the core cowl.

A tool handling system including an overhead counter-balance and a control bar. The counter-balance uses a series of complementary springs to provide a counter-gravitational force to a suspended tool. When the user wishes to lift the tool from its equilibrium position, the user is assisted by the counter-gravitational force of the springs such that the tool may be lifted with only a small fraction of the force necessary to lift the tool unaided. The control bar will allow users to keep any cable away from a riser or other structure on which the tool is being used.